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Quick How-To: Garmin Wearable Heart Rate Broadcasting to Apps

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If you’re spending a bunch more time lately indoors using fitness apps to maintain your sanity you might not realize that you can broadcast your heart rate right from your Garmin watch straight to your favorite app – thus skipping the need for a separate heart rate strap/sensor. Garmin has long been one of the few device makers to actually allow this, but if you’ve got a COROS watch or the new Timex R300 you can also do the same. More on those details at the end of the post.

Garmin offers two modes for broadcasting heart rate:

1) Over ANT+ (for virtually every wearable ever from them)
2) Over Bluetooth Smart (for most newer 2019/2020 wearables)

The modes vary a bit, so I’ll quickly run through how to do it in both modes. In general, if you’re using a phone/tablet/Apple TV/Mac, it’s going to be easier to do via Bluetooth Smart. Whereas if you’re using a PC it’s going to be easier to do via ANT+ (again, generally). This also works on most exercise gear too, even a Peloton bike (which accepts both ANT+ & Bluetooth Smart HR connections).

Now, the point of this series is quick tips – not DCR-length crazy tips. So, here’s a video I put together that shows the tip in 5 minutes:

Or, you can simply scroll on down below for the written details for each watch/broadcasting type.

Bluetooth Broadcasting:

If you’ve got a newer Garmin watch, you’re in luck. Those support Bluetooth Smart transmission using a new ‘Virtual Run’ profile. While designed for running on a treadmill (as it also includes running pace and cadence), it actually works just fine for any activity you want – including cycling on Zwift. I detailed the whole feature here in a post a few months ago.

This function is *only* available on newer Garmin wearables, likely due to hardware architecture limitations on older chipsets. Here’s what’s supported:

Supported watches: Garmin Forerunner 245, Forerunner 945, Fenix 6 Series (it might also work with the Tactix Charlie and Quatix 6 Series, but I don’t have either)

If you don’t have one of the above watches, you’ll need to use the ANT+ broadcasting method down below. Or, if you found this post a year or so in the future and have some mysterious new watch not listed above, it probably supports this method.

To enable it, on your watch go to start a new sport, so press the upper right button once, then scroll all the way down until you find ‘Virtual Run’ (you might have to add it by first pressing the “+” option at the bottom of the list):

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Once you’ve got Virtual Run selected, press the down arrow past the informational message to select OK. At this point you’ll be at a screen like this:

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Now, simply open up your app of choice, and you should see the Garmin watch listed, by the name of the watch itself:

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Just select that as usual, and you’re good to go!

Meanwhile, on the Garmin watch, you’ll likely want to start the activity. You can discard this later on, but otherwise that pairing window times out after about 30-40 minutes. Whereas if you simply start the activity it’ll broadcast in the background. Then afterwards just stop and discard it.

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Now the only downside to this is that if you wanted to record a legit cycling activity (including connecting to a power meter or cycling sensors), you can’t do that in the Virtual Run mode. Which in turn means that if you wanted to record aforementioned legit activity so that it shows up as a legit workout in your training log so you get all the physiological training load metrics updated – it won’t do that.

For that, you should use the ANT+ broadcasting method. However, I did ask Garmin whether they’ll simply enable Bluetooth Smart broadcasting in a similar manner to the existing ANT+ method (or implement a virtual cycling option), and they said it’s already in the cards. But they don’t have an exact timeframe for when such a software update might happen. So until then, we’ll have to make do with the above method.

And indeed, I’ve used it a number of times in a pinch. Obviously there can be downsides to optical HR sensors, but I find that accuracy on an indoor cycling trainer tends to be very good (primarily because there’s no road vibration, or running cadence to deal with). Again, it’s an option.

ANT+ Broadcasting:

Don’t have the fanciest new Garmin? No worries, you can still do this via ANT+ instead. Virtually every Garmin wearable ever made supports this. The steps might vary slightly, but they’ve been doing this for years upon years, even with the cheapest wearables.

The downside with ANT+ of course is that it won’t work on iOS or Apple TV devices (but will on many Android devices). If you’ve got a PC or Mac, you’ll need an ANT+ USB adapter, which if you Zwift you might have anyway already. It works natively on Peloton bikes (but not just the digital app), as they support ANT+ heart rate connections.

The basics steps below are basically the same on any Garmin wearable. Now technically there’s two ways to do this with ANT+:

A) Ad-hoc broadcasting only when you want it
B) Turn on broadcasting every time you start a workout

I’ll show you the ad-hoc steps, and then give you the one-line option for turning it on every time you start a sport. Hold down the middle settings button > Sensors & Accessories (in some watches you can skip this menu) > Wrist Heart Rate > Broadcast Heart Rate:

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Now, this will be broadcasting your heart rate over ANT+, so you can see it easily from any app compatible with ANT+. For example, here it is on a MacBook with an ANT+ adapter. Note the ANT+ icon, and it even has a unique ANT+ ID that’ll always remain the same (so it’ll automatically connect next time, just like any other HR strap).

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When you’re done, you’ll simply hit the escape button to end the broadcast.

But my favorite option is to simply enable it anytime I start a workout (no matter the type). The battery impact here is negligible. Again, it’s under Settings > Sensors & Accessories (or skipped again on some watches) > Wrist Heart Rate > Broadcast During Activity set to ‘On’:

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And now if you go to start a workout you’ll notice the HR icon has a little transmission signal coming off of it:

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That’s it – the result is the same and it’ll be seen in any apps/devices that support ANT+. This can also be used to pair to bike computers like a Garmin Edge, Wahoo ELEMNT series, or basically anything. Super practical if you forgot your HR strap or such.

Wrap-Up:

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Finally, as I mentioned earlier, there are some other watches that can broadcast your optical HR out as well. They are as follows:

COROS Watches: All COROS watches can as of the last two weeks. I outlined this in a post last week here.

Timex Ironman R300 GPS Watch: To enable this, press the middle button > Settings > Workout > Broadcast HR > Set to ‘ON’ (though in practice, I’m struggling a bit to make this work, so got some more research to do there.)

Whoop 3.0: While not a watch per se, this wearable will broadcast your HR over Bluetooth Smart once enabled from the app. It’ll then remain on at all times for when an app wants to connect to it. It doesn’t materially impact battery life since it only transmits it once required by the app.

Whereas devices from Apple, Fitbit, Suunto, Samsung, and countless others don’t broadcast your HR. Notably, while some Polar wearables do broadcast your HR on some older watches, it really only works reliably with other Polar gear. I wouldn’t recommend using it for non-Polar connectivity.

With that – hopefully you found this post useful, and the shorter format helpful as well for these sort of brief how-to type items.

Thanks for reading!

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90 Comments

  1. Tommy

    Top tip. You can set broadcast as a shortcut option in the fenix series. Meaning if you hold a specified key for a second, boom it’s on.

    Shame it doesn’t broadcast Bluetooth also in this mode.

  2. Hollyoak

    Another tip you can use “Virtual Run” to broadcast the HR from an external ANT+ strap (almost all legacy Garmin straps) this will generally give much better accuracy than the built-in oHR.

    • Vova Mihura

      Indeed, I tried that one and it works like a charm.

      So you can literally use your old Garmin HR Strap with Zwift iOS rebroadcasting via Fenix.

  3. Anthony

    Super helpful, thanks!

    So, does this mean that Garmin Connect won’t log the activity? Or have the activity metrics? Just Strava (who I use?)

    Thanks again!

  4. John D

    I want to broadcast both ANT+ and BLE. ANT+ to Garmin Edge (for Physio TrueUp) and BLE to Zwift and other iOS apps. The Forerunner 645 only does ANT+ and I gave up on the CABLE ANT+ to BLE. I purchased a Wahoo TICKR FIT as a “solution.”

    The Forerunner 245 sounds like it could broadcast to both with a firmware update, so maybe that will make the TICKR FIT not needed.

    • John D

      Oops, if you have “broadcast during activity” on and also use Virtual Run, the Forerunner 245 broadcasts in both. So the Edge (ANT+) and Zwift on iOS (Bluetooth) are both happy. Hooray!

    • Laurent

      I don’t broadcast during activity but I use a Garmin dual heart monitor with Zwift and my edge 530 for true up, training status,… But, until few days, I have a delay (sometimes 45 seconds) between heart rate in Zwift and heart rate edge. Yesterday, I did a VO2Max cycling training (3×8(1 minute PMA 1 minute rest) and it was awful.
      Someone have an idea to help me.

    • KM

      You can see at the garmin forums that WHR is abominable with the f6. I have exactly the same issue with Zwift and a Virtual Run, where it either lags by minutes, or does the OPPOSITE of what’s expected. Garbage.

      That said, it works just fine outside in runs and rides, including harsh MTB activity.

  5. Anthony

    Just realized I have the Garmin 935. Is that not supported in this feature? Do you know?

  6. Jade

    Is the Venu included in the list where I can use virtual run?

  7. Seth

    Still can’t start a workout if transmitting to trainer road or anything not zwift. I get the transmitting but can’t start the workout on 945

  8. Mahdi Kefayati

    Great post as always. Just one point to add simultaneous broadcast on ANT+ and BLE is possible by enabling broadcast writs HRM during activity (if an external HRM is not paired with the watch). Also, b/c timeout is really annoying and it does not allow you to start until cadence/speed is paired, I start Zwift Run kick off the activity and then close it and switch to either Zwift or any other app. Even when the “run” app is closed, the watch keeps broadcasting as long as you have the activity going. There is one annoying caveat here and in general: if the watch is paired with multiple devices and you get somehow disconnected, it may jump on another bluetooth device and there is no way to select what device you want to connect to. Best solution so far has been to turn BT off on the others but not always possible.

  9. TL@

    Tied this with my Garmin Forerunner (ANT) and it does work, however during cycling it always reads too low. A lot too low.

    My wife’s watch does the same and a buddy’s Fenix does this as well.

    During running a is fine, cycling not so much. A full on max effort, heart rate stays like 135 when it should be 180 or there about.

    So I’ll keep using the chest strap.

    • Mahdi Kefayati

      this has been an issue that is raised with Garmin (at least on FR945 forum) and is a known issue, to the point that I switched back to my chest strap (ANT+) that I broadcast on BLE using the mechanism I described earlier (virtual run) to my Mac Mini. Seems the recent update has made it better on FR945 but YMMV.

    • Ken

      Fenix 6 Sapphire does this for me, too. My f5+ was spot on. Real disappointing.

  10. Gian-Carlo Pascutto

    Despite being new models the Vivoactive 4 and the Venu don’t seem to have gotten the ability to broadcast over Bluetooth. Sad!

  11. Koen Van den Bergh

    Not really about broadcasting the heart rate for it’s intended purpose, but it is possible to use the function to turn the sensor back on during a swim activity on the fenix 5 plus (series) and others.
    After selecting swim as activity the sensor is switched off, if you use the quick menu to enable (and disable) broadcasting of the hr, the sensor is switched on and stays on. After that you can start the swim activity.
    There is no heart rate information inside the activity, but the watch uses it to calculate the intensity and you can use the daily graph to see how high your heart rate has been.

  12. We’ve got a 235 and 735. As far as I can see they only have the ad hoc broadcast HR option. Not broadcast during activity. Is this right or am I missing something?

  13. Fran

    I would like to see more on accuracy…can you point us to any past wearable review with accuracy testing in a trainer vs. a chest strap?

    Thanks!

  14. Mike 9

    I have a Fenix 5x and an Edge 820, can I use the 5x to broadcast to the Edge during a bike ride?

    • Mahdi Kefayati

      yeah, just turn on broadcast HR (you can even make it a quick action shortcut). Either during activity, or from the sensor settings menu. It is ANT+ which your Edge naively supports.

    • Yes – and when you do, your Edge ride will count towards Active Minutes, which isn’t the case when you get you HR from a chest strap.

    • Smileman

      But is there anyway other than leaving broadcast HR on permanently to have the Edge automatically capture watch HR data?

      What I’m looking for here is get on my bike, start recording the ride with an Edge 1030, and heart rate data is transmitted to the Edge without my having to press anything or interact in any way with the watch.

      I don’t want to have to start an activity on the watch and discard it, etc.

    • Not on permanently. Basically just the two options of:

      A) Manually turning on HR broadcasting but not recording an activity
      B) Starting/discarding an activity

      🙁

  15. acousticbiker

    Thanks as always, Ray! I’m a Fenix 6 owner and have a few questions:

    – I see that you mention Peloton accepting transmissions via ANT or BT and that Virtual Run can be used for other other activities like Zwift cycling. Can it be used for Peloton cycling?
    – And if I do use it for Peloton cycling and want to save the activity, will I be able to change it to cycling in Connect so that I can manually add cadence, power, etc (which is currently how I log Peloton rides through the Indoor Bike activity)?
    – If Virtual Run can be used for Peloton, any advantage/disadvantage of using it vs Indoor Bike in this scenario?
    – Great to heat Garmin has BT Smart broadcasting And/or Virtual Bike ‘in the works’ – do you whether it’s one or the other (or both)?

    • 1) Yes, it can be used for Peloton (which accepts either ANT+ or BLE)
      2) Hmm, not sure there. Have you considered instead syncing to Strava and then manually exporting that and uploading that to Garmin?
      3) I’d honestly just use the ANT+ broadcasting there, since Peloton supports that natively.
      4) I don’t know there.

      Cheers!

  16. Zach S.

    I see you mention Whoop in there. I know it has been asked before, but do you plan to do a review on Whoop at any point?

  17. Josh

    I’ve got a Vivoactive 3 and broadcast HR over Bluetooth to my Peloton. Just go to settings/sensors/HR wrist/broadcast.

  18. ChrisTexan

    Reminder for Polar, although their watches don’t really do it right, the H10 strap at least broadcasts ANT+, and will pair with up to 2 BTLE devices, so from that perspective, it’s very flexible. (And OH1 will do ANT+ and 1 BTLE, so still some flexibility there)… but for on-wrist devices, yeah, no joy with Polar in spite of some past promises to rebroadcast

    • Geraldaut

      Its really a shame because there seems to by no hardware limitation on the Vantage series for example. It could even broadcast on ANT+!
      But maybe they prefer to sell a ton of H9 and H10 belts what I can understand from a commercial persepective. I would happily pay let’s say 20 EUR to get a software update for broadcast though.

  19. Brian Reiter

    Ray,

    While don’t have one, it is clear from the Garmin Forums that the Tacxtix Delta uses literally the same firmware as the Fēnix 6X Pro. (Literally for beta testing you load the same firmware.)

    They have some extremely minor features and SKU-specific watch faces that appear to turn on and off by detecting the model that the firmware is running on f6X vs Tactix: secure wipe and night vision mode. It also seems like airplane mode is renamed to stealth mode on Tactix. Otherwise I think the features are identical.

    • abrar

      I typically search for Fenix 6 whenever I’m looking for help for the Tactix Delta software. If Garmin offered the Fenix 6 with sapphire and solar I’d have one of those instead. Looking back at it, being indoors most of the time in not to sunny UK, the non-solar would have been fine.

  20. Pat

    Folks. For those of us that Zwift cycle with a watch, you really think some Garmin guide or FAQ really wants to tell us to start (or hold on the start screen?) an activity (“Virtual Run”) in order to broadcast HR to Zwift while cycling and then discard the activity later? This is useless. The activity should be tracked in Garmin. It sounds like “Virtual Bike” is in the works, so waiting for that.

  21. Paul Williams

    Howdy,
    Is there anyway to stop the power saver mode from stopping the HR broadcast after about 20 mins on extended mode? I broadcast HR from my 735xt to an edge 820. Also, I haven’t checked this out and really isn’t a concern, but do you know if when you broadcast HR does it double up on the calories calculation or does broadcast mode in essence stop any calorie burning detection from that watch?
    Cheers,
    Paul

  22. John

    Been using this feature with Zwift for a while with my iPaf. It works great, but the Virtual Bike activity from Garmin can’t get here soon enough.

  23. Uwe

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    🙂

  24. Kaz

    I just hope this Covid stuff makes Garmin put extra effort into Indoor training.

    Virtual Run is a reasonable start. But I’d rather just have BLE HR transfer “during activity” like you can set with ANT+.

    Those features should off course trickle down to Vivoactive 4 and other same generation watches. There is no HW reason why it should not be possible.

    But then some Garmin focus on other things like ANT FE-C / bike trainer support on the watches would be nice – and then open it up for all other ANT FE-C devices so we have FULL support for all kinds of ANT indoor trainers on all the watches and not only EDGE for Bikes.

    Garmin True-Up makes it really annoying to use 2 devices as “training load” / status is still on each individual device and they have not seems to find a way to combine them.

  25. Turn The Damn Cranks

    I recently got a VA 3 and have used it to broadcast while rowing on an erg. It seems consistently low (and at one point dropped my HR from close to 120 down to the mid-50s mid-workout). Am I right in thinking that if you are using your hands for your activity it may negatively impact HR? I see better results if I move it up my arm, away from my wrist. But even then it seems a bit low. Is this also an issue when cycling?

    Thanks!

    • kaz

      any sports where you tighten your wrists will have negative impact on most Watches with optical HR. (Row/Bike etc)

      Any sports where you move your arms a lot you might have issues – so make sure watch is tight and mounted a bit further up your arm than you would have it for “normal” wear.

    • Gian-Carlo Pascutto

      Yes, definitely. Cadence lock is a common problem when biking, also, or even more, on a stationary bike.

      When running it knows and can filter the cadence pretty well, but I don’t think it uses cadence sensor inputs from the bike.

    • Turn The Damn Cranks

      Thank you both.

      Still haven’t figured out why my Concept2 won’t pair with my Viiiia (although I think it has something to do with the fact it got paired to my phone at one point and I think even when I pair to the Concept2 using ANT+ that it is trying to rebroadcast or something). But I dug out my old hard strap Garmin from when I got a FR305 bundle back in the day. (Which, as an aside, I purchased after discovering this site and Ray’s review, which I believe was his most popular for many years.) The result is that I discovered that the VA3 high on my arm is fairly accurate after a while, but way off early, and sometimes still goes wonky. So I rely solely on the chest strap.

      As for cycling, now that I have my Zwift setup squared away, I’m good on that front. I need to use the Viiiia with AppleTV anyway, so that takes care of HR and cadence.

      Stay safe, all!

      Thanks again.

  26. robert antonetti

    OK thanks for the info but this “feature” isn’t really helpful. I want to broadcast my HR while Zwifting and I want to record the activity as well. I have tried the HR Broadcast in cycling and it doesn’t work for the Fenix6. You state Garmin is aware of this…seems like a pretty big miss on their part and they didn’t commit to release time frame?

    • It works for ANT+ (and has for years), but not yet Bluetooth Smart for cycling mode.

    • Scott J

      I’m a Fenix6 owner and having just started zwifting, I used the method described and broadcast my OHR to zwift. I established connections with TP and GC so that my zwift workout would be uploaded. So after my first zwift ride, I looked at GC and although cycling data, i.e. power, etc. had been uploaded, GC did not show any increased “Load” under the training stats.

      So…for those zwifters who own a Fenix, do you start an “Indoor Bike” session on the Fenix as well as uploading the workout via zwift after the ride is over?

    • Kaz

      I only use Zwift for the fun – and don’t upload any data to anywhere. I record what I can on my F6 or my Edge 1030 to have consistant data.

      I got the KICKR Bike and right now it ONLY supports ANT+ FE-C – so it won’t record on my F6 as F6 does not read ANT+ FE-C – but only ANT+ Speed/Cadence. Once Wahoo release firmware for Speed/Cadence or Garmin adds FE-C support to their watches – I’ll ditch the Edge 1030. True-Up is True-Pain related to training load etc.

  27. Kevin

    Hi Ray,

    Sorry I don’t want to hijack this thread but don’t know where else to ask this question.

    Lockdown here in South Africa entails not leaving your property. Now running laps around my patio (partially covered). It appears the gps on my Garmin 230 loses signal (and thus distance) on the covered portion. I am wearing a footpod. Is it possible to set the watch to take distance from the footpod? Would setting it to indoor running do this?

    Any other solution? Feel free to email me directly – don’t want to clog up this thread.

    Thanks.

  28. Stuart Brown

    Hi Ray,

    I notice in the 4.53 beta for Venu, that the release notes state ‘increased version to allowing testing of new Bluetooth firmware.’

    Could this be an indication that HR over BLE is coming to Venu?

    Many thanks
    Stuart

  29. Jose A del Cueto

    Thanks!! Works great with Garmin Marq Athlete, BT smart. Is possible to change the logo/icon? Pair with zwift companion and works great, better than broadcast. Is there an accuracy difference between the optical and the chest strap?

  30. Mark

    Great knowledge and good post as always DC.

    But am I the only one that thinks this is a big work around for the sake of buying a chest strap?

    I run my Garmin 945 at the same time as Zwift or The Sufferfest for the Training Load metrics and can transmit/receive power, cadence and heart rate (also speed although a largely redundant metric) to both the watch and the platform using a heart rate strap (BLE and ANT+).

    As everything syncs to TrainingPeaks and Strava I have a small amount of deletion admin, but a couple of clicks when reviewing the data (that’s what it’s there for!) is no major issue, especially not for all the additional data.

  31. Brian

    Hi! Nice article and very timely. I just bought a Forerunner 245 to use with the Peloton Digital App on my iPhone. When opening Virtual Run I can get it to start broadcasting HR to the iPhone and the Peloton App which is great but the Virtual Run never changes from ‘ready to pair.’ The speed and cadence icons on the virtual run never turn green. How do I activate those or is there a way to start the activity without it? The upper right activity button won’t do anything on the screen since it is stuck in a waiting to pair. I realize that I can just broadcast the HR as long as it doesn’t time out but I would actually like to start the virtual run so I can save the workout. I added a screen for cadence and speed so I can track my bike workout.

    I hope that all makes sense and any ideas please let me know!

  32. James Mangold

    Is there any way that my Fenix5X can broadcast steps? Hopefully that way I can use Zwift on a treadmill without having to buy a foot pod.

    • Kaz

      No not really unless you add foot pod or NPE Runn – or your TM supports Zwift directly.

      Garmin’s Virtual run so far only works with some of the latest gen watches like forerunner 945 / Fenix 6. It does not (yet) work on vivoactive 4 (same generation as 945/F6)

    • James Mangold

      Thanks Kaz
      Any recommendations on what stride sensor to get? My Garmin one has died and 2 x wahoo ones refuse to pair with Zwift. Cheers

    • Kaz

      My preference by far is Stryd – any Stryd footpod will do fine for treadmill. I use Stryd inside and outside and would not be without it. (Unless Garmin suddenly gets a lot better at tracking via GPS)

      But if you have multiple people sharing the TM – then NPE Runn would be a good solution. It stays on the TM. NPE Runn is the cheaper solution – and I think they have a sale on? $79,- for the Runn (link to store.npe-inc.com)

      But Stryd gets you Watt readouts – which is great for outside pacing. So if you normally run at 240 watt – going up a hill at the same speed would maybe put you at 280 watt doing the same speed. That would send your heart rate racing when you reach the top – and increasing the possibility of you hitting “the wall” – With Stryd I slow down to keep roughly the same wattage – which then keeps my HR from shooting up. And everyone knows if you have had your HR up high – it can take a while to get it down again. And you might not notice your HR increasing running uphill – as HR is a lacking indicator. So from you start running uphill until you see the full effect – it can be too late. The Watt indications show almost instantly. So Stryd is my pacing tool and my distance measure.

      But I’ve bought an NPE Runn for my TM – so wife and kids can use the TM with Zwift and record the correct speed on their watches for. My NPE should arrive tomorrow so I can tell more after that. My kids are quite young so they often run holding the bar during some of the run – so run distances are never even close (based on the acceleration meter in the watches) – therefore the NPE Runn.. (And I supervise all their runs closely – as kids are only 5 and 7)

      But Stryd is about $225 new where NPE Runn is $80 at the moment.

  33. JC

    I have been able to pair my Garmin Fenix 6 with Zwift on IOS, using the Virtual Run without any problem. When I try to do it on the Zwift Windows 10 app, it does find the find the Garmin, but it does show a no reception message and the Fenix 6 remains on “Ready to pair” mode…

    Any idea?

  34. mario a lira junior

    Kevin, you might want to use an indoor or treadmill running mode instead of the GPS-based running mode.

  35. Alex Romeo

    Hi,

    Congrats for your reviews as always!!

    Do you expect to have theses features in Garmin 935?

    Thank you in advance.

    Alex

  36. Frankwin Aerden

    Ray,

    Super review.

    Can the Vantage V be used day tot day training, activity-log, sleep-log and seperatly the Grit X only for trail-running and mountainbiking? Wil the sleep recovery en orthostatic test values uploaded from the Vantage V be used by the fitspark training advice in the Grit X and visa versa.

    Thanks!

  37. scott jay

    Have a Venu for 3 months now. Probably my biggest complaint is that the wrist HRM is NOT accurate for about the first 10 minutes of the activity. Instead of using this, I actually have to use my chest strap monitor and connect it to my watch. After 10 minutes I have found that the Garmin watch is pretty good. I have tried various tightnesses around my wrist, makes no difference.

    Very disappointed that this feature doesn’t work well. I had hoped to get rid of an item.

    • Brian W

      I’ve observed this in a couple Garmin optical Harms including my Fenix 5x and my wife’s Vivoactive. Very annoying, especially for indoor activities that may only last 45 min when it takes 15-20 to get an accurate reading. Anecdotally, I also found this happens more often when the temperature is cold outside or my HR is low.

  38. Mark

    The Garmin 645 is between a 245 and 945, yet you’ve left it out. Is it limited to broadcasting on ANT+ only, no BT?

  39. Paddy

    Hi Ray, really useful guide – thank you!

    I’ve been using this feature on my FR245M for quite a few TrainerRoad workouts, connecting to the TrainerRoad app on my iPhone. It’s great to be able to broadcast heart rate from my watch via Bluetooth since I don’t have a chest strap.

    My only problem is the heart rate seems crazy low. It’s often stuck around 100bpm and doesn’t really get any higher. The HR is consistently 40-50bpm below where it should be (and where it is when I record HR on an indoor TrainerRoad activity using the ‘bike indoor’ activity). It’s not a huge deal, but might mean I don’t use this function and just don’t record HR for my TrainerRoad workouts.

    My only thought is it might be something to do with the way Garmin calculates HR in this mode – since it seems to work better in different positions on the bike. e.g. it seems more accurate when I’m on the aero bars.

    Has anyone else had this problem? Any fixes I’m missing? Would be great if Garmin would just release a virtual cycle activity!

  40. Dave

    Howdy,

    A link from Garmin support re HR Bluetooth broadcasting with virtual run and supported Garmin watches.

    link to support.garmin.com

    Cheers

    Dave

  41. DesertMatt

    Hello Ray
    Thank for the instructions – helpful as always!
    I have only one problem using this app with tacx neo 2t and pairing it to the tacx app on my android tablet.
    It is pairing and transmitting all good but it is stuck in the ready to pair screen although it shows in the lower data field bluetooth connection with my tablet and also in the tacx app it shows connected and is transmitting. The problem is there is no way that I can actually start the activity on my fenix pro 6 and it is timing out around 40 minutes into the ride and I have to reconnect it again which is very annoying…
    Anything I’m missing?
    Thank you very much
    Matthias

  42. Girish

    Hi am using garmin 920xt how to connect the chest strap with zwift for cycling???

  43. Sheree Welsh Krause

    I just bought the Garmin Vivosmart 4 to work with my Peloton app that I use @ gym on my iPhone. Put heart rate in broadcast on my vivosmart and my peloton app isn’t finding it. Please help. This watch doesn’t have a “virtual run” mode

    • That’s a bit of a pickle.

      See, the Garmin Vivosmart 4 broadcasts only on ANT+, not Bluetooth Smart. So for a Peloton Bike, that’d be fine, because it connects over both ANT+ & Bluetooth Smart for HR straps. But for the Peloton app on an iPad/iPhone/anything, it only connects via Bluetooth Smart.

  44. MartinJB

    Out of curiosity something appears to be preventing my 245 and iPhone running the Elite HRV app from hooking up. The the Forerunner is connected to the iPhone and the app goes into a ‘connecting’ state and is ‘waiting for pulse data from the 245’ – but everything stalls at this point. It is as if something is missing, the same thing happened when I tried it with FulGaz – is this feature compatible only with particular Apps?

  45. Bruce Tiller

    Thanks, Ray – I am broadcasting heart rate from my FR235 to my garmin edge 530 while cycling. And I have a display set up to see it while I am riding. But it drops out! Today on a short 1 hour ride, it dropped out maybe 5 or 6 times. I have to go to my watch, stop broadcasting, then start again, then the edge will start picking up signal again. The watch is showing heart rate all the time, so what is happening? The drop outs are annoying and distracting when I have to mess with my watch to get the edge to connect again. What am I missing?
    Thanks!

  46. Lior

    did anyone find a way to make sufferfest work with virtual run on Fenix 6 ?

  47. Todd

    Do you know if there’s a way to merge fitness metrics from a Forerunner 245 music with an Edge 530? Would one of these methods work? I like the Edge for cycling metrics and my forerunner for heart rate (and therefore calories burned), but I cannot figure out how to link them. Thank you for any assistance.

    • Yup, you can use the standard Garmin HR broadcasting on the FR245. So basically, go on your Edge 530 into sensor pairing mode.

      Then, on the FR245, you an go into the settings, just the optical HR sensor, and set it to either broadcast now, or, broadcast when in an activity. For the moment, choose to broadcast now.

      Now, back on your Edge 530 search for a new HR sensor. It’ll find it there, and pair up and save t.

      For future workouts you can either start a workout on the FR245 (which activates the HR sensor broadcasting), or, you can just manually broadcast your HR without starting a workout.

    • Todd

      So helpful! Thanks so much

  48. Chris

    Don’t suppose there has been any news on when Garmin will be enabling bluetooth smart broadcast for the Fenix 6 series