Polar M400 vs. Samsung Gear Fit2 vs. Withings Go vs. Amazfit Stratos
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| PolarM400Remove Buy Now | SamsungGear Fit2Remove Buy Now | WithingsGoRemove Buy Now | AmazfitStratosRemove Buy Now |
Basic Info | ||||
| Suggested Price | $200 | $180 | $80 | $199 |
| Release | 2014 | 2016 | 2016 | 2018 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | n/a | |||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 8 hours to 30 days | 3-4 days | 8 months | 5 days |
| Rechargeable | ||||
Compatibility | ||||
| Android | n/a | |||
| iOS | n/a | |||
| Windows Phone | n/a | n/a | ||
| Mac | n/a | n/a | ||
| Windows | n/a | n/a | ||
Connectivity | ||||
| Bluetooth | n/a | |||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | n/a | |||
| Resolution | n/a | 432 x 216 | n/a | 320 x 300 |
| Size | n/a | 1.5 inches | n/a | 1.34 inches |
| Touch | n/a | |||
| Type | n/a | Super AMOLED | E-Ink | OLED |
Functions | ||||
| Audio Speaker | Alerts only | Bluetooth | ||
| Clock | ||||
| Phone | n/a | |||
| Vibration | n/a | |||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 3 ATM | IP68 | 5 ATM | 5 ATM |
Notifications | ||||
| Phone | n/a | |||
| Emails | n/a | |||
| Texts | n/a | |||
Software | ||||
| Operating System | n/a | Tizen | n/a | Proprietary |
| Apps | n/a | |||
| Music | ||||