Polar M400 vs. Fitbit Ionic vs. Pebble Core vs. Apple SE
 | | | | |
| PolarM400Remove Buy Now | FitbitIonicRemove Buy Now | PebbleCoreRemove Buy Now | AppleSERemove Buy Now |
Basic Info | ||||
| Suggested Price | $200 | $299 | $99 | $279 |
| Release | 2014 | 2017 | 2016 | 2020 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | NA | |||
| Distance | ||||
| Heart | n/a | |||
| Oxygen | ||||
| Sleep | NA | |||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 8 hours to 30 days | 4+ 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 | NA | 384 x 480 |
| Size | n/a | 1.42 | NA | 40mm |
| Touch | NA | |||
| Type | n/a | OLED | NA | MicroLED |
Functions | ||||
| Audio Speaker | Alerts only | |||
| Clock | ||||
| Phone | NA | |||
| Vibration | NA | |||
| Voice | ||||
Hardware | ||||
| Accelerometer | NA | |||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | Not yet | |||
| Water Resistance | 3 ATM | 50m | NA | |
Notifications | ||||
| Phone | NA | |||
| Emails | NA | |||
| Texts | NA | |||
Software | ||||
| Operating System | n/a | Fitbit OS | NA | WatchOS 5 |
| Apps | ||||
| Music | ||||