Apple Watch Series 3 vs. Garmin Vivofit 3 vs. Garmin Vivosmart HR vs. Amazfit T-Rex vs. Apple Watch 7

 
Watch Series 3
Vivofit 3
Vivosmart HR
T-Rex
Watch 7
 AppleWatch Series 3Remove Buy NowGarminVivofit 3Remove Buy NowGarminVivosmart HRRemove Buy NowAmazfitT-RexRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$329$100$170$140$429
Release20172016201520192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours1 year5 days20 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 31264 x 64160 x 68360 x 360396 x 484
Size1.5 inches or 1.65 inches0.55 inches1.08 inches1.3 inches1.9 inches
Touch
TypeAMOLEDn/an/aAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/an/aBuild-inWatchOS 8
Apps
Music

All Wearables