Fitbit Blaze vs. Casio WSD-F20A vs. Fitbit Charge HR vs. Fitbit Flex vs. Amazfit T-Rex

 
Blaze
WSD-F20A
Charge HR
Flex
T-Rex
 FitbitBlazeRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$399$150$100$140
Release20162018201520132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 Days1 day5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NANA360 x 360
Sizen/a1.32 inchesNANA1.3 inches
TouchNANA
TypeLCDLCDOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNANABuild-in
Apps
Music

All Wearables