Polar M430 vs. Garmin 645 Music vs. Jawbone UP4 vs. Michael Kors Access Sofie HR vs. Amazfit GTR
 | | | | | |
| PolarM430Remove Buy Now | Garmin645 MusicRemove Buy Now | JawboneUP4Remove Buy Now | Michael KorsAccess Sofie HRRemove Buy Now | AmazfitGTRRemove Buy Now |
Basic Info | |||||
| Suggested Price | $255 | $450 | $200 | $395 | $199 |
| Release | 2017 | 2018 | 2015 | 2019 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 30 hours | 7 days | NA | 2 days | 24 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | NA | ||||
| Mac | NA | ||||
| Windows | NA | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 128x128 | 240 x 240 | NA | 390 x 390 | 454 x 454 |
| Size | 1.4 inch | 1.2 inches | NA | 1.19 inches | 1.39 inches |
| Touch | NA | ||||
| Type | LCD | MIP | NA | OMOLED | AMOLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | WR30 | 5 ATM | NA | 0.3 ATM | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | NA | Wear OS | Build-in | ||
| Apps | |||||
| Music | NA | ||||