Fitbit Flex 2 vs. Withings Pulse Ox vs. Fitbit Charge 3 vs. HTC re Grip
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| FitbitFlex 2Remove Buy Now | WithingsPulse OxRemove Buy Now | FitbitCharge 3Remove Buy Now | HTCre GripRemove Buy Now |
Basic Info | ||||
| Suggested Price | $100 | $120 | $150 | $199 |
| Release | 2016 | 2014 | 2018 | 2020 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 5 days | 2 weeks | 7 days | 5 hours to 2.5 days |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | n/a | n/a | NA | |
| Mac | n/a | NA | ||
| Windows | n/a | Not yet | NA | |
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | NA | |||
| Wi-Fi | ||||
Display | ||||
| Color | n/a | blue | ||
| Resolution | n/a | 128 x 32 | 66 x 18 | 160 x 32 |
| Size | n/a | n/a | .721 inches | 1.8 inches |
| Touch | n/a | Swipe | ||
| Type | LED | OLED | OLED | PMOLED |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 5 ATM | 5 ATM | IP57 | |
Notifications | ||||
| Phone | ||||
| Emails | ||||
| Texts | ||||
Software | ||||
| Operating System | n/a | n/a | NA | NA |
| Apps | ||||
| Music | ||||