ASUS ZenWatch 2 vs. Fitbit Charge 2 vs. Asus ZenWatch vs. Amazfit T-Rex vs. Apple Watch Ultra

 
ZenWatch 2
Charge 2
ZenWatch
T-Rex
Watch Ultra
 ASUSZenWatch 2Remove Buy NowFitbitCharge 2Remove Buy NowAsusZenWatchRemove Buy NowAmazfitT-RexRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$150$150$140$799
Release20162016201420192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 daysNA20 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/a320 x 320360 x 360502x410 pixels
Size1.63 inches or 1.45 inchn/a1.63 inches1.3 inches1.92 inches
Touchn/a
TypeAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67n/aIP555 ATM10 ATM (100 Meters)

Notifications

Phone
Emailsn/aNA
Textsn/aNA

Software

Operating SystemAndroid Wearn/aAndroid WearBuild-inWatchOS 9
Apps
Music

All Wearables