Garmin Vivoactive HR vs. Pebble Steel vs. Polar M400 vs. Sony SmartWatch 3 vs. Amazfit T-Rex

 
Vivoactive HR
Steel
M400
SmartWatch 3
T-Rex
 GarminVivoactive HRRemove Buy NowPebbleSteelRemove Buy NowPolarM400Remove Buy NowSonySmartWatch 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$150$200$250$140
Release20162014201420142019

Activity & Fitness

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

Battery

Duration13 hours to 8 days5-7 days8 hours to 30 days2 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205168 x 144n/a320 x 320360 x 360
Size1.38 inches1.26 inchesn/a1.6 inches1.3 inches
Touch
Typen/ae-papern/aTFT LCDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aPebble OSn/aAndroid WearBuild-in
Apps
Music

All Wearables