ASUS ZenWatch 2 vs. Amazfit Stratos vs. Fitbit Flex vs. Fitbit Inspire HR vs. Apple Watch Ultra

 
ZenWatch 2
Stratos
Flex
Inspire HR
Watch Ultra
 ASUSZenWatch 2Remove Buy NowAmazfitStratosRemove Buy NowFitbitFlexRemove Buy NowFitbitInspire HRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$199$100$99$799
Release20162018201320192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 days5 days5 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320320 x 300NA139 x 60502x410 pixels
Size1.63 inches or 1.45 inch1.34 inchesNA1.4 inches1.92 inches
TouchNA
TypeAMOLEDOLEDLEDOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM1 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearProprietaryNAFitbit OSWatchOS 9
Apps
Music

All Wearables