Polar M600 vs. Withings Activite Sapphire vs. Fitbit Flex 2 vs. Casio G-Shock GBA800 vs. Jaybird Reign
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| PolarM600Remove Buy Now | WithingsActivite SapphireRemove Buy Now | FitbitFlex 2Remove Buy Now | CasioG-Shock GBA800Remove Buy Now | JaybirdReignRemove Buy Now |
Basic Info | |||||
| Suggested Price | $330 | $450 | $100 | $120 | $150 |
| Release | 2016 | 2014 | 2016 | 2018 | 2015 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 2 days | 8 months | 5 days | 2 years | 5 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | n/a | n/a | NA | |
| Mac | n/a | NA | |||
| Windows | n/a | NA | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | n/a | ||||
| Resolution | 240 x 240 | n/a | n/a | NA | |
| Size | 1.3 inches | 1.3 inches | n/a | NA | |
| Touch | n/a | n/a | NA | ||
| Type | TFT | Analog | LED | LED | |
Functions | |||||
| Audio Speaker | Alerts only | ||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | IPX8 | 5 ATM | 5 ATM | 20 ATM | NA |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Android Wear | n/a | n/a | NA | |
| Apps | |||||
| Music | |||||