Polar Loop 2 vs. Casio WSD-F20A vs. Fitbit Charge vs. Polar Loop vs. HTC re Grip

 
Loop 2
WSD-F20A
Charge
Loop
re Grip
 PolarLoop 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitChargeRemove Buy NowPolarLoopRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$120$399$130$100$199
Release20152018201420132020

Activity & Fitness

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

Battery

Duration8 days (without notifications)1 day7-10 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NANA160 x 32
Sizen/a1.32 inchesNANA1.8 inches
TouchNA
TypeLEDLCDOLEDLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM1 ATM2 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNANANA
Apps
Music

All Wearables