Olio Model One vs. Polar M400 vs. Fitbit Versa vs. Fitbit Charge vs. Amazfit GTR
 | | | | | |
| OlioModel OneRemove Buy Now | PolarM400Remove Buy Now | FitbitVersaRemove Buy Now | FitbitChargeRemove Buy Now | AmazfitGTRRemove Buy Now |
Basic Info | |||||
| Suggested Price | $595 | $200 | $199.99 | $130 | $199 |
| Release | 2015 | 2014 | 2018 | 2014 | 2019 |
Activity & Fitness | |||||
| Calories | n/a | ||||
| Cycling (Bicycling) | n/a | ||||
| Distance | n/a | ||||
| Heart | n/a | n/a | |||
| Oxygen | n/a | ||||
| Sleep | n/a | ||||
| Steps | n/a | ||||
| Swim | n/a | ||||
Battery | |||||
| Duration | 2 days | 8 hours to 30 days | 4 days | 7-10 days | 24 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | n/a | NA | ||
| Mac | n/a | ||||
| Windows | n/a | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | n/a | ||||
| NFC | n/a | ||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | n/a | 300 x300 | NA | 454 x 454 |
| Size | n/a | n/a | 1.34 inches | NA | 1.39 inches |
| Touch | NA | ||||
| Type | n/a | n/a | OLED | OLED | AMOLED |
Functions | |||||
| Audio Speaker | n/a | Alerts only | |||
| Clock | |||||
| Phone | n/a | ||||
| Vibration | n/a | ||||
| Voice | |||||
Hardware | |||||
| Accelerometer | n/a | ||||
| Barometer or Altimeter | n/a | ||||
| Ultraviolet Sensor | |||||
| Water Resistance | 5 ATM | 3 ATM | 5 ATM | 1 ATM | 5 ATM |
Notifications | |||||
| Phone | n/a | ||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | n/a | n/a | NA | Build-in | |
| Apps | n/a | ||||
| Music | |||||