Fitbit Charge vs. Polar A370 vs. Swatch Touch Zero One vs. Amazfit GTS vs. HTC re Grip
 | | | | | |
| FitbitChargeRemove Buy Now | PolarA370Remove Buy Now | SwatchTouch Zero OneRemove Buy Now | AmazfitGTSRemove Buy Now | HTCre GripRemove Buy Now |
Basic Info | |||||
| Suggested Price | $130 | $179.95 | $220 | $150 | $199 |
| Release | 2014 | 2017 | 2015 | 2019 | 2020 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | n/a | ||||
| Steps | |||||
| Swim | n/a | ||||
Battery | |||||
| Duration | 7-10 days | Up to 3 days | n/a | 14 days | 5 hours to 2.5 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | n/a | ||||
| iOS | n/a | ||||
| Windows Phone | NA | n/a | NA | ||
| Mac | n/a | NA | |||
| Windows | n/a | NA | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | NA | 160 x 80 | n/a | 348 x 442 | 160 x 32 |
| Size | NA | 1.18 inches | n/a | 1.65 inches | 1.8 inches |
| Touch | NA | ||||
| Type | OLED | TFT LCD | n/a | AMOLED | PMOLED |
Functions | |||||
| Audio Speaker | n/a | ||||
| Clock | |||||
| Phone | n/a | ||||
| Vibration | n/a | ||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | n/a | ||||
| Ultraviolet Sensor | |||||
| Water Resistance | 1 ATM | WR30 | 5 ATM | IP57 | |
Notifications | |||||
| Phone | n/a | ||||
| Emails | n/a | ||||
| Texts | n/a | ||||
Software | |||||
| Operating System | NA | n/a | Wear OS | NA | |
| Apps | |||||
| Music | n/a | ||||