ASUS ZenWatch 3 vs. Fitbit Flex vs. Amazfit GTS vs. Amazfit T-Rex vs. Apple Series 6

 
ZenWatch 3
Flex
GTS
T-Rex
Series 6
 ASUSZenWatch 3Remove Buy NowFitbitFlexRemove Buy NowAmazfitGTSRemove Buy NowAmazfitT-RexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$229$100$150$140$399
Release20172013201920192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hours5 days14 days20 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution400 x 400NA348 x 442360 x 360384 x 480
Size1.39 inchesNA1.65 inches1.3 inches40mm
TouchNA
TypeAMOLEDLEDAMOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2NAWear OSBuild-inWatchOS 5
Apps
Music

All Wearables