| Price | $179.00 | $249 | $349.00 | $399 |
| Product Announcement Date | OCT 4, 2010 | SEPT 16, 2013 | APR 12, 2011 | SEPT 16, 2013 |
| Actual Availability/Shipping Date | OCT 2010 | OCT 31, 2013 | APR 15, 2011 | OCT 31, 2013 |
| GPS Recording Functionality | Yes | Yes | Yes | Yes |
| Data Transfer | USB | USB, Bluetooth Smart | ANT+ Wireless | USB, WiFi, Bluetooth Smart |
| Waterproofing | IPX7 | 50 Meters | IPX7 | 50 meters |
| Battery Life (GPS) | 10 hours | 10 hours | 8 Hours | 10 hours |
| Recording Interval | Smart | SMART RECORDING (VARIABLE) | 1-second & smart | 1-second & Smart |
| Alerts | Audio/Visual | VIBRATE/SOUND/VISUAL | AUDIO/VISUAL/VIBRATE | Audio/Visual/Vibrate |
| Backlight Greatness | Good | Great | Great | Great |
| Ability to download custom apps to unit/device | No | No | No | No |
| Acts as daily activity monitor (steps, etc...) | No | No | No | No |
Connectivity | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Bluetooth Smart to Phone Uploading | No | Yes | Via Wahoo Fitness Adapter | Yes |
| Phone Notifications to unit (i.e. texts/calls/etc...) | No | No | No | No |
| Live Tracking (streaming location to website) | No | Yes | No | Yes |
| Emergency/SOS Message Notification (from watch to contacts) | No | No | No | No |
| Built-in cellular chip (no phone required) | No | No | No | No |
Cycling | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Designed for cycling | Barely (Speed mode only) | Barely (Speed mode only) | Yes | Barely (Speed mode only) |
| Power Meter Capable | No | No | No | No |
| Speed/Cadence Sensor Capable | No | No | Yes | Yes |
| Strava segments live on device | | | | No |
Running | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Designed for running | Yes | Yes | Yes | Yes |
| Footpod Capable (For treadmills) | Yes | Yes (also has internal accelerometer) | Yes | Yes (internal accelerometer) |
| Running Dynamics (vertical oscillation, ground contact time, etc...) | No | No | No | Yes |
| VO2Max Estimation | No | No | No | Yes |
| Race Predictor | No | No | No | Yes |
| Recovery Advisor | No | No | No | Yes |
| Run/Walk Mode | No | Yes | Yes | Yes |
Swimming | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Designed for swimming | No | No (protected though just fine) | No | No (protected though just fine) |
| Record HR underwater | No | No | No | No |
Triathlon | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Designed for triathlon | No | No | No | No |
| Multisport mode | No | No | No | No |
Workouts | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Create/Follow custom workouts | No | Yes | Yes | Yes |
| On-unit interval Feature | Yes | Yes | Yes | Yes |
| Training Calendar Functionality | No | Yes | No | Yes |
Functions | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Auto Start/Stop | No | Yes | Yes | Yes |
| Virtual Partner Feature | No | No | Yes | Yes |
| Virtual Racer Feature | No | No | Yes | No |
| Records PR's - Personal Records (diff than history) | No | Yes | No | Yes |
| Tidal Tables (Tide Information) | No | No | No | No |
| Weather Display (live data) | No | No | No | No |
Navigate | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Follow GPS Track (Courses/Waypoints) | No | No | No | No |
| Markers/Waypoint Direction | No | No | No | No |
| Routable/Visual Maps (like car GPS) | No | No | No | No |
| Back to start | No | No | Yes | No |
| Impromptu Round Trip Route Creation | No | No | No | No |
| Download courses/routes from phone to unit | No | No | No | No |
Sensors | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Altimeter Type | GPS | GPS | GPS | GPS |
| Optical Heart Rate Sensor internally | | No | | No |
| Heart Rate Strap Compatible | Yes | Yes | Yes | Yes |
| ANT+ Heart Rate Strap Capable | Yes | Yes | Yes | Yes |
| ANT+ Speed/Cadence Capable | No | No | Yes | Yes |
| ANT+ Footpod Capable | Yes | Yes | Yes | Yes |
| ANT+ Power Meter Capable | No | No | No | No |
| ANT+ Lighting Control | | | | No |
| ANT+ Bike Radar Integration | | | | No |
| ANT+ Trainer Control (FE-C) | | | | No |
| ANT+ Remote Control | No | No | No | No |
| ANT+ eBike Compatibility | No | No | No | No |
| Shimano Di2 Shifting | | No | | No |
| Bluetooth Smart HR Strap Capable | No | No | No | No |
| Bluetooth Smart Speed/Cadence Capable | No | No | No | No |
| Bluetooth Smart Footpod Capable | No | No | No | No |
| Bluetooth Smart Power Meter Capable | No | No | No | No |
| Temp Recording (internal sensor) | No | No | No | No |
| Temp Recording (external sensor) | No | No | No | No |
Software | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | PC Application | GTC | Garmin Express | GTC/ANT Agent | Garmin Express |
| Web Application | Garmin Connect | Garmin Connect | Garmin Connect | Garmin Connect |
| Phone App | Garmin Fit | iOS/Android | Garmin Fit | iOS/Android |
| Ability to Export Settings | No | No | No | Yes |
Purchase | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Amazon | Link | Link | Link | Link |
DCRainmaker | Garmin Forerunner 210 | Garmin Forerunner 220 | Garmin Forerunner 610 | Garmin Forerunner 620 | | Review Link | Link | Link | Link | Link |