Fitbit Flex 2 vs. Mobvoi TicWatch E vs. Fitbit Charge HR vs. Mobvoi TicWatch S2 vs. Amazfit T-Rex

 
Flex 2
TicWatch E
Charge HR
TicWatch S2
T-Rex
 FitbitFlex 2Remove Buy NowMobvoiTicWatch ERemove Buy NowFitbitCharge HRRemove Buy NowMobvoiTicWatch S2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$159$150$180$140
Release20162017201520192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1.5-2 days5 days2 DAYS20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400NA400 x 400360 x 360
Sizen/a1.4 inchesNA1.39 inches1.3 inches
Touchn/aNA
TypeLEDOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP671 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NAWear OSBuild-in
Apps
Music

All Wearables