ASUS ZenWatch 3 vs. Fitbit Ionic vs. Garmin Forerunner 45 vs. Amazfit T-Rex vs. Apple Watch 7

 
ZenWatch 3
Ionic
Forerunner 45
T-Rex
Watch 7
 ASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$229$299$199$140$429
Release20172017201920192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hours4+ days7 days20 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution400 x 400348x250208 x 208360 x 360396 x 484
Size1.39 inches1.421.04 inches1.3 inches1.9 inches
Touch
TypeAMOLEDOLEDLCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2Fitbit OSBuilt-inBuild-inWatchOS 8
Apps
Music

All Wearables