Polar Loop 2 vs. Withings Go vs. Amazfit Stratos vs. Fitbit Alta HR
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| PolarLoop 2Remove Buy Now | WithingsGoRemove Buy Now | AmazfitStratosRemove Buy Now | FitbitAlta HRRemove Buy Now |
Basic Info | ||||
| Suggested Price | $120 | $80 | $199 | $150 |
| Release | 2015 | 2016 | 2018 | 2017 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | n/a | |||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 8 days (without notifications) | 8 months | 5 days | 7 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 | n/a | 320 x 300 | 128 x 36 |
| Size | n/a | n/a | 1.34 inches | 1.4 inches |
| Touch | n/a | |||
| Type | LED | E-Ink | OLED | OLED |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | n/a | |||
| Vibration | n/a | |||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 2 ATM | 5 ATM | 5 ATM | |
Notifications | ||||
| Phone | n/a | |||
| Emails | n/a | |||
| Texts | n/a | |||
Software | ||||
| Operating System | n/a | n/a | Proprietary | |
| Apps | n/a | |||
| Music | ||||