ASUS ZenWatch 3 vs. Fitbit Ionic vs. Amazfit Stratos vs. Fitbit Charge vs. Apple Watch 7

 
ZenWatch 3
Ionic
Stratos
Charge
Watch 7
 ASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowFitbitChargeRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$229$299$199$130$429
Release20172017201820142021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hours4+ days5 days7-10 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution400 x 400348x250320 x 300NA396 x 484
Size1.39 inches1.421.34 inchesNA1.9 inches
TouchNA
TypeAMOLEDOLEDOLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM1 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2Fitbit OSProprietaryNAWatchOS 8
Apps
Music

All Wearables