Fitbit Flex 2 vs. Casio WSD-F20A vs. Amazfit GTR
 | | | |
| FitbitFlex 2Remove Buy Now | CasioWSD-F20ARemove Buy Now | AmazfitGTRRemove Buy Now |
Basic Info | |||
| Suggested Price | $100 | $399 | $199 |
| Release | 2016 | 2018 | 2019 |
Activity & Fitness | |||
| Calories | |||
| Cycling (Bicycling) | |||
| Distance | |||
| Heart | |||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery | |||
| Duration | 5 days | 1 day | 24 days |
| Rechargeable | |||
Compatibility | |||
| Android | |||
| iOS | |||
| Windows Phone | n/a | ||
| Mac | |||
| Windows | |||
Connectivity | |||
| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display | |||
| Color | n/a | ||
| Resolution | n/a | 320 x 320 | 454 x 454 |
| Size | n/a | 1.32 inches | 1.39 inches |
| Touch | n/a | ||
| Type | LED | LCD | AMOLED |
Functions | |||
| Audio Speaker | |||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware | |||
| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | |||
| Water Resistance | 5 ATM | 5 ATM | 5 ATM |
Notifications | |||
| Phone | |||
| Emails | |||
| Texts | |||
Software | |||
| Operating System | n/a | Wear OS | Build-in |
| Apps | |||
| Music | |||