Casio WSD-F20A vs. Polar Loop vs. Amazfit T-Rex vs. Apple Series 6
 | | | | |
| CasioWSD-F20ARemove Buy Now | PolarLoopRemove Buy Now | AmazfitT-RexRemove Buy Now | AppleSeries 6Remove Buy Now |
Basic Info | ||||
| Suggested Price | $399 | $100 | $140 | $399 |
| Release | 2018 | 2013 | 2019 | 2020 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 1 day | 5 days | 20 days | Not yet |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | NA | |||
| Mac | NA | |||
| Windows | NA | |||
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | ||||
| Resolution | 320 x 320 | NA | 360 x 360 | 384 x 480 |
| Size | 1.32 inches | NA | 1.3 inches | 40mm |
| Touch | ||||
| Type | LCD | LED | AMOLED | MicroLED |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | 5 ATM | |||
| Water Resistance | 5 ATM | 2 ATM | 5 ATM | |
Notifications | ||||
| Phone | ||||
| Emails | ||||
| Texts | ||||
Software | ||||
| Operating System | Wear OS | NA | Build-in | WatchOS 5 |
| Apps | ||||
| Music | ||||