Casio G-Shock GBA800 vs. Fitbit Charge 3 vs. Polar Loop vs. Amazfit T-Rex
 | | | | |
| CasioG-Shock GBA800Remove Buy Now | FitbitCharge 3Remove Buy Now | PolarLoopRemove Buy Now | AmazfitT-RexRemove Buy Now |
Basic Info | ||||
| Suggested Price | $120 | $150 | $100 | $140 |
| Release | 2018 | 2018 | 2013 | 2019 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 2 years | 7 days | 5 days | 20 days |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | NA | |||
| Mac | NA | |||
| Windows | Not yet | NA | ||
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | NA | |||
| Wi-Fi | ||||
Display | ||||
| Color | ||||
| Resolution | 66 x 18 | NA | 360 x 360 | |
| Size | .721 inches | NA | 1.3 inches | |
| Touch | ||||
| Type | OLED | LED | AMOLED | |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 20 ATM | 5 ATM | 2 ATM | 5 ATM |
Notifications | ||||
| Phone | ||||
| Emails | ||||
| Texts | ||||
Software | ||||
| Operating System | NA | NA | Build-in | |
| Apps | ||||
| Music | ||||