Fitbit Alta vs. Polar A370 vs. Xiaomi Mi Band 4 vs. Amazfit GTR
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| FitbitAltaRemove Buy Now | PolarA370Remove Buy Now | XiaomiMi Band 4Remove Buy Now | AmazfitGTRRemove Buy Now |
Basic Info | |||||
| Suggested Price | $130 | $179.95 | $25 | $199 | |
| Release | 2016 | 2017 | 2019 | 2019 | |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 5 days | Up to 3 days | 20 days | 24 days | |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | |||||
| Mac | |||||
| Windows | |||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | 160 x 80 | 120x240 | 454 x 454 | |
| Size | n/a | 1.18 inches | 0.95 inches | 1.39 inches | |
| Touch | n/a | ||||
| Type | OLED | TFT LCD | AMOLED | AMOLED | |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | n/a | WR30 | 5 ATM | 5 ATM | |
Notifications | |||||
| Phone | |||||
| Emails | n/a | ||||
| Texts | |||||
Software | |||||
| Operating System | n/a | AMAZFIT OS | Build-in | ||
| Apps | |||||
| Music | |||||