Garmin Vivoactive HR vs. Apple Watch Series 2 vs. Fitbit Flex vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Vivoactive HR
Watch Series 2
Flex
Vivosmart 3
T-Rex
 GarminVivoactive HRRemove Buy NowAppleWatch Series 2Remove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$269$100$139.99$140
Release20162016201320172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days18 hours5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205340 x 272 or 390 x 312NA64 x 128360 x 360
Size1.38 inches1.5 inches or 1.65 inchesNANA1.3 inches
TouchNA
Typen/aAMOLEDLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSNABuild-in
Apps
Music

All Wearables