Fitbit Alta vs. Casio WSD-F20A vs. Polar A370 vs. Polar Loop
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| FitbitAltaRemove Buy Now | CasioWSD-F20ARemove Buy Now | PolarA370Remove Buy Now | PolarLoopRemove Buy Now |
Basic Info | ||||
| Suggested Price | $130 | $399 | $179.95 | $100 |
| Release | 2016 | 2018 | 2017 | 2013 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 5 days | 1 day | Up to 3 days | 5 days |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | NA | |||
| Mac | NA | |||
| Windows | NA | |||
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | ||||
| Resolution | n/a | 320 x 320 | 160 x 80 | NA |
| Size | n/a | 1.32 inches | 1.18 inches | NA |
| Touch | n/a | |||
| Type | OLED | LCD | TFT LCD | LED |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | n/a | 5 ATM | WR30 | 2 ATM |
Notifications | ||||
| Phone | ||||
| Emails | n/a | |||
| Texts | ||||
Software | ||||
| Operating System | n/a | Wear OS | NA | |
| Apps | ||||
| Music | ||||