Polar M400 vs. Garmin Vivofit 3 vs. Fitbit Alta HR vs. Pebble Core vs. Apple Series 6
 | | | | | |
| PolarM400Remove Buy Now | GarminVivofit 3Remove Buy Now | FitbitAlta HRRemove Buy Now | PebbleCoreRemove Buy Now | AppleSeries 6Remove Buy Now |
Basic Info | |||||
| Suggested Price | $200 | $100 | $150 | $99 | $399 |
| Release | 2014 | 2016 | 2017 | 2016 | 2020 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | NA | ||||
| Distance | |||||
| Heart | n/a | n/a | |||
| Oxygen | |||||
| Sleep | NA | ||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 8 hours to 30 days | 1 year | 7 days | NA | Not yet |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | NA | ||||
| Windows Phone | n/a | NA | |||
| Mac | n/a | NA | |||
| Windows | n/a | NA | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | 64 x 64 | 128 x 36 | NA | 384 x 480 |
| Size | n/a | 0.55 inches | 1.4 inches | NA | 40mm |
| Touch | NA | ||||
| Type | n/a | n/a | OLED | NA | MicroLED |
Functions | |||||
| Audio Speaker | Alerts only | ||||
| Clock | |||||
| Phone | NA | ||||
| Vibration | NA | ||||
| Voice | |||||
Hardware | |||||
| Accelerometer | NA | ||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | 5 ATM | ||||
| Water Resistance | 3 ATM | 5 ATM | NA | ||
Notifications | |||||
| Phone | NA | ||||
| Emails | NA | ||||
| Texts | NA | ||||
Software | |||||
| Operating System | n/a | n/a | NA | WatchOS 5 | |
| Apps | |||||
| Music | |||||