Garmin Forerunner 225 vs. Polar M600 vs. Garmin 645 Music vs. Jaybird Reign vs. Garmin Vivosmart 4
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| GarminForerunner 225Remove Buy Now | PolarM600Remove Buy Now | Garmin645 MusicRemove Buy Now | JaybirdReignRemove Buy Now | GarminVivosmart 4Remove Buy Now |
Basic Info | |||||
| Suggested Price | $300 | $330 | $450 | $150 | $130 |
| Release | 2015 | 2016 | 2018 | 2015 | 2018 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 10 hours to 4 weeks | 2 days | 7 days | 5 days | 7 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | n/a | NA | ||
| Mac | n/a | NA | |||
| Windows | n/a | NA | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 180 x 180 | 240 x 240 | 240 x 240 | NA | 48 x 128 |
| Size | 1 inch | 1.3 inches | 1.2 inches | NA | 0.74 inches |
| Touch | n/a | NA | |||
| Type | n/a | TFT | MIP | LED | OLED |
Functions | |||||
| Audio Speaker | 22 | Alerts only | |||
| Clock | |||||
| Phone | n/a | ||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | 5 ATM | IPX8 | 5 ATM | NA | 5 ATM |
Notifications | |||||
| Phone | n/a | ||||
| Emails | n/a | ||||
| Texts | n/a | ||||
Software | |||||
| Operating System | n/a | Android Wear | NA | ||
| Apps | n/a | ||||
| Music | n/a | ||||