Polar M400 vs. Polar Loop 2 vs. Apple Watch vs. Pebble Core
 | | | | |
| PolarM400Remove Buy Now | PolarLoop 2Remove Buy Now | AppleWatchRemove Buy Now | PebbleCoreRemove Buy Now |
Basic Info | ||||
| Suggested Price | $200 | $120 | $349 | $99 |
| Release | 2014 | 2015 | 2015 | 2016 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | NA | |||
| Distance | ||||
| Heart | n/a | n/a | ||
| Oxygen | ||||
| Sleep | NA | |||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 8 hours to 30 days | 8 days (without notifications) | 18 hours | NA |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | NA | |||
| Windows Phone | n/a | n/a | NA | NA |
| Mac | n/a | NA | NA | |
| Windows | n/a | NA | NA | |
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | ||||
| Resolution | n/a | n/a | 340 x 272 or 390 x 312 | NA |
| Size | n/a | n/a | 1.5 inches or 1.65 inches | NA |
| Touch | NA | |||
| Type | n/a | LED | AMOLED | NA |
Functions | ||||
| Audio Speaker | Alerts only | |||
| Clock | ||||
| Phone | NA | |||
| Vibration | NA | |||
| Voice | ||||
Hardware | ||||
| Accelerometer | NA | |||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 3 ATM | 2 ATM | IPX7 | NA |
Notifications | ||||
| Phone | NA | |||
| Emails | NA | |||
| Texts | NA | |||
Software | ||||
| Operating System | n/a | n/a | Watch OS | NA |
| Apps | ||||
| Music | ||||