Pebble Time Steel vs. Polar M400 vs. Fitbit Zip vs. Withings Go vs. Xiaomi Mi Band 4
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| PebbleTime SteelRemove Buy Now | PolarM400Remove Buy Now | FitbitZipRemove Buy Now | WithingsGoRemove Buy Now | XiaomiMi Band 4Remove Buy Now |
Basic Info | |||||
| Suggested Price | $250 | $200 | $60 | $80 | $25 |
| Release | 2015 | 2014 | 2012 | 2016 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | n/a | ||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 10 days | 8 hours to 30 days | 6 months | 8 months | 20 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | n/a | ||||
| iOS | n/a | ||||
| Windows Phone | n/a | n/a | n/a | n/a | |
| Mac | n/a | n/a | |||
| Windows | n/a | n/a | |||
Connectivity | |||||
| Bluetooth | n/a | ||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | n/a | ||||
| Resolution | 168 x 144 | n/a | n/a | n/a | 120x240 |
| Size | 1.26 inches | n/a | n/a | n/a | 0.95 inches |
| Touch | n/a | ||||
| Type | e-paper | n/a | n/a | E-Ink | AMOLED |
Functions | |||||
| Audio Speaker | Alerts only | ||||
| Clock | |||||
| Phone | n/a | ||||
| Vibration | n/a | ||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | 5 ATM | 3 ATM | Splash Resistant | 5 ATM | 5 ATM |
Notifications | |||||
| Phone | n/a | ||||
| Emails | n/a | ||||
| Texts | n/a | ||||
Software | |||||
| Operating System | Pebble OS | n/a | n/a | n/a | AMAZFIT OS |
| Apps | n/a | ||||
| Music | |||||