Garmin Vivosmart HR vs. ASUS ZenWatch 3 vs. Fitbit Ionic vs. Amazfit Stratos vs. Amazfit T-Rex

 
Vivosmart HR
ZenWatch 3
Ionic
Stratos
T-Rex
 GarminVivosmart HRRemove Buy NowASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$229$299$199$140
Release20152017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours4+ days5 days20 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68400 x 400348x250320 x 300360 x 360
Size1.08 inches1.39 inches1.421.34 inches1.3 inches
Touch
Typen/aAMOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Fitbit OSProprietaryBuild-in
Apps
Music

All Wearables