Polar M430 vs. Amazfit Stratos vs. Fitbit Charge vs. Apple Watch 7
 | | | | |
| PolarM430Remove Buy Now | AmazfitStratosRemove Buy Now | FitbitChargeRemove Buy Now | AppleWatch 7Remove Buy Now |
Basic Info | ||||
| Suggested Price | $255 | $199 | $130 | $429 |
| Release | 2017 | 2018 | 2014 | 2021 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 30 hours | 5 days | 7-10 days | 18 Hours |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | NA | |||
| Mac | ||||
| Windows | ||||
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | ||||
| Resolution | 128x128 | 320 x 300 | NA | 396 x 484 |
| Size | 1.4 inch | 1.34 inches | NA | 1.9 inches |
| Touch | NA | |||
| Type | LCD | OLED | OLED | MicroLED |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | WR30 | 5 ATM | 1 ATM | water resistant but not waterproof |
Notifications | ||||
| Phone | ||||
| Emails | ||||
| Texts | ||||
Software | ||||
| Operating System | Proprietary | NA | WatchOS 8 | |
| Apps | ||||
| Music | ||||