Polar V800 vs. Fitbit Ionic vs. Xiaomi Mi Band 4
 | | | |
| PolarV800Remove Buy Now | FitbitIonicRemove Buy Now | XiaomiMi Band 4Remove Buy Now |
Basic Info | |||
| Suggested Price | $470 | $299 | $25 |
| Release | 2014 | 2017 | 2019 |
Activity & Fitness | |||
| Calories | |||
| Cycling (Bicycling) | n/a | ||
| Distance | |||
| Heart | n/a | ||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery | |||
| Duration | 13 hours to 30 days | 4+ days | 20 days |
| Rechargeable | |||
Compatibility | |||
| Android | |||
| iOS | |||
| Windows Phone | n/a | ||
| Mac | |||
| Windows | |||
Connectivity | |||
| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display | |||
| Color | |||
| Resolution | n/a | 348x250 | 120x240 |
| Size | n/a | 1.42 | 0.95 inches |
| Touch | |||
| Type | n/a | OLED | AMOLED |
Functions | |||
| Audio Speaker | Alerts only | ||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware | |||
| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | |||
| Water Resistance | 3 ATM | 50m | 5 ATM |
Notifications | |||
| Phone | |||
| Emails | |||
| Texts | |||
Software | |||
| Operating System | n/a | Fitbit OS | AMAZFIT OS |
| Apps | |||
| Music | |||