Fitbit Alta HR vs. Polar Loop vs. Apple Watch Series 4 vs. Michael Kors Access Sofie HR
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| FitbitAlta HRRemove Buy Now | PolarLoopRemove Buy Now | AppleWatch Series 4Remove Buy Now | Michael KorsAccess Sofie HRRemove Buy Now |
Basic Info | ||||
| Suggested Price | $150 | $100 | $329 | $395 |
| Release | 2017 | 2013 | 2018 | 2019 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 7 days | 5 days | Not Yet | 2 days |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | NA | |||
| Mac | NA | |||
| Windows | NA | |||
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | ||||
| Resolution | 128 x 36 | NA | 384 x 480 | 390 x 390 |
| Size | 1.4 inches | NA | 1.78 inches | 1.19 inches |
| Touch | ||||
| Type | OLED | LED | MicroLED | OMOLED |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 2 ATM | Not Yet | 0.3 ATM | |
Notifications | ||||
| Phone | ||||
| Emails | ||||
| Texts | ||||
Software | ||||
| Operating System | NA | Watch OS 5 | Wear OS | |
| Apps | ||||
| Music | ||||