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| CasioWSD-F20ARemove Buy Now | FitbitFlex 2Remove Buy Now | PolarLoopRemove Buy Now | PolarM600Remove Buy Now |
Basic Info | ||||
| Suggested Price | $399 | $100 | $100 | $330 |
| Release | 2018 | 2016 | 2013 | 2016 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 1 day | 5 days | 5 days | 2 days |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | n/a | NA | n/a | |
| Mac | NA | |||
| Windows | NA | |||
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | n/a | |||
| Resolution | 320 x 320 | n/a | NA | 240 x 240 |
| Size | 1.32 inches | n/a | NA | 1.3 inches |
| Touch | n/a | n/a | ||
| Type | LCD | LED | LED | TFT |
Functions | ||||
| Audio Speaker | Alerts only | |||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 5 ATM | 5 ATM | 2 ATM | IPX8 |
Notifications | ||||
| Phone | ||||
| Emails | ||||
| Texts | ||||
Software | ||||
| Operating System | Wear OS | n/a | NA | Android Wear |
| Apps | ||||
| Music | ||||