Pebble Steel vs. Fitbit Ionic vs. Garmin Vivofit 4 vs. Polar A370 vs. Amazfit T-Rex
 | | | | | |
| PebbleSteelRemove Buy Now | FitbitIonicRemove Buy Now | GarminVivofit 4Remove Buy Now | PolarA370Remove Buy Now | AmazfitT-RexRemove Buy Now |
Basic Info | |||||
| Suggested Price | $150 | $299 | $79.95 | $179.95 | $140 |
| Release | 2014 | 2017 | 2018 | 2017 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 5-7 days | 4+ days | 1 year | Up to 3 days | 20 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | ||||
| Mac | n/a | ||||
| Windows | n/a | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 168 x 144 | 348x250 | 88 x 88 | 160 x 80 | 360 x 360 |
| Size | 1.26 inches | 1.42 | NA | 1.18 inches | 1.3 inches |
| Touch | |||||
| Type | e-paper | OLED | NA | TFT LCD | AMOLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | 5 ATM | 50m | 5 ATM | WR30 | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Pebble OS | Fitbit OS | Build-in | ||
| Apps | |||||
| Music | |||||