Casio WSD-F20A vs. Fitbit Flex vs. Polar A370 vs. Fitbit Versa 2 vs. HTC re Grip

 
WSD-F20A
Flex
A370
Versa 2
re Grip
 CasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowFitbitVersa 2Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$399$100$179.95$199$199
Release20182013201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day5 daysUp to 3 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320NA160 x 80300 x 300160 x 32
Size1.32 inchesNA1.18 inches1.34 inches1.8 inches
TouchNA
TypeLCDLEDTFT LCDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMWR305 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNABuild-inNA
Apps
Music

All Wearables