Amazfit Stratos vs. Asus ZenWatch vs. Fitbit Flex vs. Apple Watch Ultra vs. Fitbit Sense 2

 
Stratos
ZenWatch
Flex
Watch Ultra
Sense 2
 AmazfitStratosRemove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy NowAppleWatch UltraRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$199$150$100$799$300
Release20182014201320222022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA5 days36 hrs6 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 300320 x 320NA502x410 pixels336x336
Size1.34 inches1.63 inchesNA1.92 inches1.59 inches
TouchNA
TypeOLEDAMOLEDLEDAMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP551 ATM10 ATM (100 Meters)5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemProprietaryAndroid WearNAWatchOS 9
Apps
Music

All Wearables