| Price | $299 (on sale) | $399 | $450.00 | $400.00/Discontinued | $319 | $219 |
| Product Announcement Date | JUL 10, 2012 | OCT 4, 2011 | Oct 22, 2013 | Jan 18, 2012 | APR 29, 2013 | APR 29, 2013 |
| Actual Availability/Shipping Date | AUG 2012 | JAN-APR 2012 | Nov 2013 | Apr 2012 | May 2013 | May 2013 |
| GPS Recording Functionality | Yes | Yes | Yes | Yes | Yes | Yes |
| Data Transfer | USB & Bluetooth Smart | ANT+ Wireless | USB & Bluetooth Smart | USB | USB | USB |
| Waterproofing | Yes - 50m | Yes - 50m | Yes - 50m | Yes - 100m | Yes - 100m | Yes - 50m |
| Battery Life (GPS) | 50 hours | 20 Hours | 50 hours | 50 hours | 50 hours | 25 hours |
| Recording Interval | 1s to variable | 1s or Smart | Variable | Variable | Variable | Variable |
| Alerts | Vibrate/Sound/Visual | Vibrate/Sound/Visual | Vibrate/Sound/Visual | Sound/Visual | Sound/Visual | Sound/Visual |
| Backlight Greatness | Great | Great | Great | Great | Great | Great |
| Ability to download custom apps to unit/device | No | No | No | Yes | Yes | Yes |
| Acts as daily activity monitor (steps, etc...) | No | No | No | No | No | No |
Connectivity | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Bluetooth Smart to Phone Uploading | Yes | Via Wahoo Fitness Adapter | Yes | No | No | No |
| Phone Notifications to unit (i.e. texts/calls/etc...) | Yes | No | Yes | No | No | No |
| Live Tracking (streaming location to website) | Yes (as of Feb 2014) | No | No | No | No | No |
| Emergency/SOS Message Notification (from watch to contacts) | No | No | No | No | No | No |
| Built-in cellular chip (no phone required) | No | No | No | No | No | No |
Cycling | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Designed for cycling | Yes | Yes | Yes | Yes | Yes | Yes |
| Power Meter Capable | No | Yes | No | No | Yes | Yes |
| Power Meter Configuration/Calibration Options | N/A | Yes | N/A | N/A | Yes | Yes |
| Power Meter TSS/NP/IF | N/A | Yes | N/A | N/A | No | No |
| Speed/Cadence Sensor Capable | Yes (full support added Sept 2013) | Yes | Yes | Yes | Yes | Yes |
Running | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Designed for running | Yes | Yes | Yes | Yes | Yes | Yes |
| Footpod Capable (For treadmills) | Yes | Yes | Yes | Yes | Yes (internal accelerometer) | Yes (internal accelerometer) |
| Running Dynamics (vertical oscillation, ground contact time, etc...) | No | No | No | No | No | No |
| VO2Max Estimation | No | No | No | Yes | Yes | Yes |
| Race Predictor | No | No | No | No | No | No |
| Recovery Advisor | No | No | No | No | Yes | Yes |
| Run/Walk Mode | No | Yes | No | No | No | No |
Swimming | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Designed for swimming | No | Yes | No | No | Yes | Yes |
| Openwater swimming mode | N/A | Yes | N/A | N/A | Yes | Yes |
| Lap/Indoor Distance Tracking | N/A | Yes | N/A | N/A | Yes | Yes |
| Record HR underwater | No | No | N/A | No | No | No |
| Openwater Metrics (Stroke/etc.) | N/A | Yes | N/A | N/A | Yes | Yes |
| Indoor Metrics (Stroke/etc.) | N/A | Yes | N/A | N/A | Yes | Yes |
| Indoor Drill Mode | N/A | No | N/A | N/A | Yes | Yes |
| Indoor auto-pause feature | N/A | No | N/A | N/A | No | No |
| Change pool size | N/A | Yes | N/A | N/A | Yes | Yes |
| Indoor Min/Max Pool Lengths | N/A | 20m/22y to 100y/m | N/A | N/A | 15m/y to 1,200m/y | 15m/y to 1,200m/y |
| Ability to customize data fields | N/A | Yes | N/A | N/A | Yes | Yes |
| Captures per length data - indoors | N/A | Yes | N/A | N/A | Yes | Yes |
| Indoor Alerts | N/A | Yes | N/A | N/A | No | No |
Triathlon | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Designed for triathlon | No | Yes | No | No | Yes | Yes |
| Multisport mode | N/A | Yes | N/A | N/A | Yes | Yes |
Workouts | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Create/Follow custom workouts | Yes (As of Dec 6, 2013) | Yes | Yes (As of Dec 6, 2013) | No | No | No |
| On-unit interval Feature | Yes (As of Dec 6, 2013) | Yes | Yes (As of Dec 6, 2013) | No | Barely | Barely |
| Training Calendar Functionality | No | Yes | No | No | No | No |
Functions | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Auto Start/Stop | Yes | Yes | Yes | No | Yes | Yes |
| Virtual Partner Feature | Yes | Yes | Yes | No | No | No |
| Virtual Racer Feature | No | Yes | No | No | No | No |
| Records PR's - Personal Records (diff than history) | No | No | No | No | No | No |
| Tidal Tables (Tide Information) | No | No | Yes | No | No | No |
| Weather Display (live data) | No | No | No | No | No | No |
Navigate | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Follow GPS Track (Courses/Waypoints) | Yes | Yes | Yes | Yes | Yes | Yes |
| Markers/Waypoint Direction | Yes | No | Yes | No | Yes | Yes |
| Routable/Visual Maps (like car GPS) | No | No | No | No | No | No |
| Back to start | Yes | Yes | Yes | Yes (point to point only) | Yes (added Aug 30, 2013) | Yes (added Aug 30, 2013) |
| Impromptu Round Trip Route Creation | No | No | No | No | No | No |
| Download courses/routes from phone to unit | Yes | No | Yes | No | No | No |
Sensors | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Altimeter Type | Barometric | Barometric | Barometric | Barometric | Barometric, GPS (FusedAlti) | GPS |
| Compass Type | Magnetic | GPS | Magnetic | Magnetic | Magnetic | Magnetic |
| Heart Rate Strap Compatible | Yes | Yes | Yes | Yes | Yes | Yes |
| ANT+ Heart Rate Strap Capable | Yes | Yes | Yes | Yes | Yes | Yes |
| ANT+ Speed/Cadence Capable | Yes | Yes | Yes | Yes | Yes | Yes |
| ANT+ Footpod Capable | Yes | Yes | Yes | Yes | Yes | Yes |
| ANT+ Power Meter Capable | No | Yes | No | No | Yes | Yes |
| ANT+ Remote Control | Yes | No | Yes | No | No | No |
| ANT+ eBike Compatibility | No | No | No | No | No | No |
| Shimano Di2 Shifting | | No | | No | No | No |
| Bluetooth Smart HR Strap Capable | No | No | No | No | No | No |
| Bluetooth Smart Speed/Cadence Capable | No | No | No | No | No | No |
| Bluetooth Smart Footpod Capable | No | No | No | No | No | No |
| Bluetooth Smart Power Meter Capable | No | No | No | No | No | No |
| Temp Recording (internal sensor) | Yes | No | Yes | Yes | Yes | No |
| Temp Recording (external sensor) | Yes | No | Yes | No | No | No |
Software | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | PC Application | Basecamp | GTC/ANT Agent | Basecamp | Moveslink Agent | Moveslink Agent | Moveslink Agent |
| Web Application | Garmin Connect | Garmin Connect | Garmin Connect | Movescount | Movescount | Movescount |
| Phone App | Garmin Basecamp (iOS) | iOS/Android | Garmin Basecamp | Suunto Movescount | Suunto Movescount | Movescount |
| Ability to Export Settings | Yes (profiles XML) | No | Yes (profiles XML) | Yes (online) | Yes (online) | Yes (online) |
Purchase | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Amazon | Link | Link | Link | Link | Link | Link |
DCRainmaker | Garmin Fenix | Garmin Forerunner 910XT | Garmin Tactix | Suunto Ambit | Suunto Ambit2 | Suunto Ambit2 S | | Review Link | Link | Link | Link | Link | Link | Link |