Polar Loop 2 vs. Fitbit Charge HR vs. Fitbit Versa 2 vs. Garmin Vivosmart 4 vs. HTC re Grip

 
Loop 2
Charge HR
Versa 2
Vivosmart 4
re Grip
 PolarLoop 2Remove Buy NowFitbitCharge HRRemove Buy NowFitbitVersa 2Remove Buy NowGarminVivosmart 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$120$150$199$130$199
Release20152015201920182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)5 days5 days7 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNA300 x 30048 x 128160 x 32
Sizen/aNA1.34 inches0.74 inches1.8 inches
TouchNA
TypeLEDOLEDAMOLEDOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuild-inNA
Apps
Music

All Wearables