| Price | $549 | $399 | $499 |
| Product Announcement Date | January 5th, 2015 | Feb 20, 2014 | January 5th, 2015 |
| Actual Availability/Shipping Date | May 2015 | March 2014 | February 2015 |
| GPS Recording Functionality | Yes | Yes | Yes |
| Data Transfer | USB/Bluetooth Smart | USB/Bluetooth Smart | USB/Bluetooth Smart/WiFi |
| Waterproofing | Yes - 50m | Yes - 50m | Yes - 100m |
| Battery Life (GPS) | Up to 50hrs in GPS | 50 Hours | Up to 50hrs in GPS |
| Recording Interval | 1S OR SMART | 1S to Variable | 1S OR SMART |
| Alerts | Vibrate/Sound/Visual | Vibrate/Sound/Visual | Vibrate/Sound/Visual |
| Backlight Greatness | Great | Great | Great |
| Ability to download custom apps to unit/device | Yes | No | Yes |
| Acts as daily activity monitor (steps, etc...) | Yes | No | Yes |
Music | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Can control phone music | Yes | | Yes |
| Has music storage and playback | No | | No |
Connectivity | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Bluetooth Smart to Phone Uploading | Yes | Yes | Yes |
| Phone Notifications to unit (i.e. texts/calls/etc...) | Yes | Yes | Yes |
| Live Tracking (streaming location to website) | Yes | Yes | Yes |
| Emergency/SOS Message Notification (from watch to contacts) | No | No | No |
| Built-in cellular chip (no phone required) | No | No | No |
Cycling | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Designed for cycling | Yes | Yes | Yes |
| Power Meter Capable | Yes | Yes | Yes |
| Power Meter Configuration/Calibration Options | YEs | Yes | Yes |
| Power Meter TSS/NP/IF | YEs | Yes | Yes |
| Speed/Cadence Sensor Capable | Yes | Yes | Yes |
| Strava segments live on device | No | | No |
Running | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Designed for running | Yes | Yes | Yes |
| Footpod Capable (For treadmills) | Yes | Yes | Yes |
| Running Dynamics (vertical oscillation, ground contact time, etc...) | With HRM-TRI or HRM-RUN (Gen1 only, no Gen2 Running Dynamics) | Yes | With HRM-TRI or HRM-RUN |
| VO2Max Estimation | Yes | Yes | Yes |
| Race Predictor | Yes | Yes | Yes |
| Recovery Advisor | YEs | Yes | Yes |
| Run/Walk Mode | Yes | Yes (Added June 13th, 2014) | Yes |
Swimming | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Designed for swimming | Yes | Yes | Yes |
| Openwater swimming mode | Yes | Yes | Yes |
| Lap/Indoor Distance Tracking | Yes | Yes | Yes |
| Record HR underwater | WITH HRM-TRI/HRM-SWIM | No | WITH HRM-TRI/HRM-SWIM |
| Openwater Metrics (Stroke/etc.) | Yes | Yes | Yes |
| Indoor Metrics (Stroke/etc.) | Yes | Yes | YEs |
| Indoor Drill Mode | Yes | Yes | Yes |
| Indoor auto-pause feature | No | No | No |
| Change pool size | Yes | Yes | Yes |
| Indoor Min/Max Pool Lengths | 17M/18Y TO 150Y/M | 18m/20y to 150y/m | 17M/18Y TO 150Y/M |
| Ability to customize data fields | Yes | Yes | Yes |
| Captures per length data - indoors | Yes | Yes | Yes |
| Indoor Alerts | Yes | Yes | Yes |
Triathlon | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Designed for triathlon | Yes | Yes | Yes |
| Multisport mode | YEs | Yes | Yes |
Workouts | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Create/Follow custom workouts | YEs | Yes | Yes |
| On-unit interval Feature | Yes | Yes | YEs |
| Training Calendar Functionality | Yes | Yes (Added June 13th, 2014) | Yes |
Functions | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Auto Start/Stop | Yes | Yes | Yes |
| Virtual Partner Feature | Yes | Yes | Yes |
| Virtual Racer Feature | Yes | No | Yes |
| Records PR's - Personal Records (diff than history) | Yes | No | Yes |
| Tidal Tables (Tide Information) | Only with Garmin Bluechart g2 maps (extra) | No | No |
| Weather Display (live data) | With Connect IQ | No | Yes |
Navigate | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Follow GPS Track (Courses/Waypoints) | Yes | Yes | YEs |
| Markers/Waypoint Direction | Yes | Yes | Yes |
| Routable/Visual Maps (like car GPS) | Yes | No | No |
| Back to start | Yes | Yes | Yes |
| Impromptu Round Trip Route Creation | No | No | No |
| Download courses/routes from phone to unit | Yes | Yes | Yes |
Sensors | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Altimeter Type | Barometric | Barometric | Barometric |
| Compass Type | Magnetic | Magnetic | Magnetic |
| Optical Heart Rate Sensor internally | No | | No |
| Heart Rate Strap Compatible | Yes | Yes | Yes |
| ANT+ Heart Rate Strap Capable | YEs | Yes | Yes |
| ANT+ Speed/Cadence Capable | Yes | Yes | Yes |
| ANT+ Footpod Capable | Yes | Yes | Yes |
| ANT+ Power Meter Capable | YEs | Yes | Yes |
| ANT+ Lighting Control | No | | No |
| ANT+ Bike Radar Integration | No | | No |
| ANT+ Trainer Control (FE-C) | No | | No |
| ANT+ Remote Control | No (can control VIRB though) | No (can control VIRB though) | No (can control VIRB though) |
| ANT+ eBike Compatibility | No | No | No |
| Shimano Di2 Shifting | No | No | Coming in update |
| Bluetooth Smart HR Strap Capable | No | No | No |
| Bluetooth Smart Speed/Cadence Capable | No | No | No |
| Bluetooth Smart Footpod Capable | No | No | No |
| Bluetooth Smart Power Meter Capable | No | No | No |
| Temp Recording (internal sensor) | Yes | Yes | Yes |
| Temp Recording (external sensor) | Yes | Yes | Yes |
Software | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | PC Application | Garmin Express | Garmin Express | Garmin Express |
| Web Application | Garmin Connect | Garmin Connect | Garmin Connect |
| Phone App | iOS/Android/Windows Phone | iOS/Android | iOS/Android/Windows Phone |
| Ability to Export Settings | No | No | No |
Purchase | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Amazon | Link | Link | Link |
DCRainmaker | Garmin Epix | Garmin Fenix2/Fenix2 SE | Garmin Fenix3 | | Review Link | Link | Link | Link |