Fitbit Charge 2 vs. Amazfit Arc vs. Garmin 645 Music vs. Jaybird Reign vs. Garmin Forerunner 45
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| FitbitCharge 2Remove Buy Now | AmazfitArcRemove Buy Now | Garmin645 MusicRemove Buy Now | JaybirdReignRemove Buy Now | GarminForerunner 45Remove Buy Now |
Basic Info | |||||
| Suggested Price | $150 | $69.99 | $450 | $150 | $199 |
| Release | 2016 | 2016 | 2018 | 2015 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 5 days | 20 days | 7 days | 5 days | 7 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | NA | ||||
| Mac | NA | ||||
| Windows | NA | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | 72 x40 | 240 x 240 | NA | 208 x 208 |
| Size | n/a | 0.42 inches | 1.2 inches | NA | 1.04 inches |
| Touch | n/a | NA | |||
| Type | OLED | OLED | MIP | LED | LCD |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | n/a | IP67 | 5 ATM | NA | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | n/a | NA | Built-in | ||
| Apps | |||||
| Music | |||||