Amazfit Stratos vs. Asus ZenWatch vs. Fitbit Flex vs. Amazfit GTR vs. Apple Watch Ultra

 
Stratos
ZenWatch
Flex
GTR
Watch Ultra
 AmazfitStratosRemove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy NowAmazfitGTRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$199$150$100$199$799
Release20182014201320192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA5 days24 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 300320 x 320NA454 x 454502x410 pixels
Size1.34 inches1.63 inchesNA1.39 inches1.92 inches
TouchNA
TypeOLEDAMOLEDLEDAMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP551 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemProprietaryAndroid WearNABuild-inWatchOS 9
Apps
Music

All Wearables