Polar M400 vs. Fitbit Ionic vs. Amazfit Bip vs. Pebble Core vs. Apple Watch 7
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| PolarM400Remove Buy Now | FitbitIonicRemove Buy Now | AmazfitBipRemove Buy Now | PebbleCoreRemove Buy Now | AppleWatch 7Remove Buy Now |
Basic Info | |||||
| Suggested Price | $200 | $299 | $99.99 | $99 | $429 |
| Release | 2014 | 2017 | 2018 | 2016 | 2021 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | NA | ||||
| Distance | |||||
| Heart | n/a | ||||
| Oxygen | |||||
| Sleep | NA | ||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 8 hours to 30 days | 4+ days | 30 days | NA | 18 Hours |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | NA | ||||
| Windows Phone | n/a | NA | |||
| Mac | NA | ||||
| Windows | NA | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | 348x250 | 176 x 176 | NA | 396 x 484 |
| Size | n/a | 1.42 | 1.28 inches | NA | 1.9 inches |
| Touch | NA | ||||
| Type | n/a | OLED | NA | NA | MicroLED |
Functions | |||||
| Audio Speaker | Alerts only | ||||
| Clock | |||||
| Phone | NA | ||||
| Vibration | NA | ||||
| Voice | |||||
Hardware | |||||
| Accelerometer | NA | ||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | 3 ATM | 50m | IP68 | NA | water resistant but not waterproof |
Notifications | |||||
| Phone | NA | ||||
| Emails | NA | ||||
| Texts | NA | ||||
Software | |||||
| Operating System | n/a | Fitbit OS | NA | WatchOS 8 | |
| Apps | |||||
| Music | |||||