Polar M430 vs. Amazfit Arc vs. Xiaomi Mi Band 4
 | | | |
| PolarM430Remove Buy Now | AmazfitArcRemove Buy Now | XiaomiMi Band 4Remove Buy Now |
Basic Info | |||
| Suggested Price | $255 | $69.99 | $25 |
| Release | 2017 | 2016 | 2019 |
Activity & Fitness | |||
| Calories | |||
| Cycling (Bicycling) | |||
| Distance | |||
| Heart | |||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery | |||
| Duration | 30 hours | 20 days | 20 days |
| Rechargeable | |||
Compatibility | |||
| Android | |||
| iOS | |||
| Windows Phone | |||
| Mac | |||
| Windows | |||
Connectivity | |||
| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display | |||
| Color | |||
| Resolution | 128x128 | 72 x40 | 120x240 |
| Size | 1.4 inch | 0.42 inches | 0.95 inches |
| Touch | |||
| Type | LCD | OLED | AMOLED |
Functions | |||
| Audio Speaker | |||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware | |||
| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | |||
| Water Resistance | WR30 | IP67 | 5 ATM |
Notifications | |||
| Phone | |||
| Emails | |||
| Texts | |||
Software | |||
| Operating System | AMAZFIT OS | ||
| Apps | |||
| Music | |||