Fitbit Charge 2 vs. Pebble Core vs. Polar A370 vs. Apple Watch Series 4 vs. Apple Watch 7
 | | | | | |
| FitbitCharge 2Remove Buy Now | PebbleCoreRemove Buy Now | PolarA370Remove Buy Now | AppleWatch Series 4Remove Buy Now | AppleWatch 7Remove Buy Now |
Basic Info | |||||
| Suggested Price | $150 | $99 | $179.95 | $329 | $429 |
| Release | 2016 | 2016 | 2017 | 2018 | 2021 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | NA | ||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | NA | ||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 5 days | NA | Up to 3 days | Not Yet | 18 Hours |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | NA | ||||
| Windows Phone | NA | ||||
| Mac | NA | ||||
| Windows | NA | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | NA | 160 x 80 | 384 x 480 | 396 x 484 |
| Size | n/a | NA | 1.18 inches | 1.78 inches | 1.9 inches |
| Touch | n/a | NA | |||
| Type | OLED | NA | TFT LCD | MicroLED | MicroLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | NA | ||||
| Vibration | NA | ||||
| Voice | |||||
Hardware | |||||
| Accelerometer | NA | ||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | n/a | NA | WR30 | Not Yet | water resistant but not waterproof |
Notifications | |||||
| Phone | NA | ||||
| Emails | NA | ||||
| Texts | NA | ||||
Software | |||||
| Operating System | n/a | NA | Watch OS 5 | WatchOS 8 | |
| Apps | |||||
| Music | |||||