Pebble Time Round vs. Pebble Time Steel vs. Polar M400 vs. Polar A360 vs. Amazfit Stratos
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| PebbleTime RoundRemove Buy Now | PebbleTime SteelRemove Buy Now | PolarM400Remove Buy Now | PolarA360Remove Buy Now | AmazfitStratosRemove Buy Now |
Basic Info | |||||
| Suggested Price | $200 | $250 | $200 | $200 | $199 |
| Release | 2015 | 2015 | 2014 | 2015 | 2018 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | n/a | ||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 2 days | 10 days | 8 hours to 30 days | 12 days | 5 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | n/a | n/a | n/a | |
| Mac | n/a | n/a | |||
| Windows | n/a | n/a | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | 168 x 144 | n/a | 160 x 80 | 320 x 300 |
| Size | round | 1.26 inches | n/a | 1.18 inches | 1.34 inches |
| Touch | |||||
| Type | e-paper | e-paper | n/a | n/a | OLED |
Functions | |||||
| Audio Speaker | Alerts only | ||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | IPX7 | 5 ATM | 3 ATM | WR30 | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Pebble OS | Pebble OS | n/a | n/a | Proprietary |
| Apps | |||||
| Music | |||||