Apple Watch Series 3 vs. Amazfit Stratos vs. Fitbit Charge HR vs. Amazfit Verge vs. Apple Watch 7

 
Watch Series 3
Stratos
Charge HR
Verge
Watch 7
 AppleWatch Series 3Remove Buy NowAmazfitStratosRemove Buy NowFitbitCharge HRRemove Buy NowAmazfitVergeRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$329$199$150$160$429
Release20172018201520192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days5 days5 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 300NA454x454396 x 484
Size1.5 inches or 1.65 inches1.34 inchesNA1.39 inches1.9 inches
TouchNA
TypeAMOLEDOLEDOLEDOMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATMIP68water resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4ProprietaryNAAMAZFIT OSWatchOS 8
Apps
Music

All Wearables