Polar M600 vs. Garmin 645 Music vs. Garmin Forerunner 45 vs. Garmin VivoActive 4 vs. Fitbit Sense 2
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| PolarM600Remove Buy Now | Garmin645 MusicRemove Buy Now | GarminForerunner 45Remove Buy Now | GarminVivoActive 4Remove Buy Now | FitbitSense 2Remove Buy Now |
Basic Info | |||||
| Suggested Price | $330 | $450 | $199 | $349 | $300 |
| Release | 2016 | 2018 | 2019 | 2019 | 2022 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 2 days | 7 days | 7 days | 8 days | 6 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | ||||
| Mac | |||||
| Windows | |||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 240 x 240 | 240 x 240 | 208 x 208 | 260 x 260 | 336x336 |
| Size | 1.3 inches | 1.2 inches | 1.04 inches | 1.3ionches | 1.59 inches |
| Touch | n/a | ||||
| Type | TFT | MIP | LCD | MIP | AMOLED |
Functions | |||||
| Audio Speaker | Alerts only | ||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | IPX8 | 5 ATM | 5 ATM | 5 ATM | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Android Wear | Built-in | Wear OS | ||
| Apps | |||||
| Music | |||||