Pebble Time Round vs. Pebble Time Steel vs. Polar M400 vs. Withings Go
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| PebbleTime RoundRemove Buy Now | PebbleTime SteelRemove Buy Now | PolarM400Remove Buy Now | WithingsGoRemove Buy Now |
Basic Info | ||||
| Suggested Price | $200 | $250 | $200 | $80 |
| Release | 2015 | 2015 | 2014 | 2016 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | n/a | |||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 2 days | 10 days | 8 hours to 30 days | 8 months |
| Rechargeable | ||||
Compatibility | ||||
| Android | n/a | |||
| iOS | n/a | |||
| Windows Phone | n/a | n/a | n/a | n/a |
| Mac | n/a | n/a | n/a | |
| Windows | n/a | n/a | n/a | |
Connectivity | ||||
| Bluetooth | n/a | |||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | n/a | |||
| Resolution | n/a | 168 x 144 | n/a | n/a |
| Size | round | 1.26 inches | n/a | n/a |
| Touch | n/a | |||
| Type | e-paper | e-paper | n/a | E-Ink |
Functions | ||||
| Audio Speaker | Alerts only | |||
| Clock | ||||
| Phone | n/a | |||
| Vibration | n/a | |||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | IPX7 | 5 ATM | 3 ATM | 5 ATM |
Notifications | ||||
| Phone | n/a | |||
| Emails | n/a | |||
| Texts | n/a | |||
Software | ||||
| Operating System | Pebble OS | Pebble OS | n/a | n/a |
| Apps | n/a | |||
| Music | ||||