Apple Watch Series 3 vs. Sony SmartWatch 3 vs. Garmin Vivosmart HR vs. Polar Loop 2 vs. Amazfit T-Rex

 
Watch Series 3
SmartWatch 3
Vivosmart HR
Loop 2
T-Rex
 AppleWatch Series 3Remove Buy NowSonySmartWatch 3Remove Buy NowGarminVivosmart HRRemove Buy NowPolarLoop 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$250$170$120$140
Release20172014201520152019

Activity & Fitness

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

Battery

Duration18 hours2 days5 days8 days (without notifications)20 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
Resolution340 x 272 or 390 x 312320 x 320160 x 68n/a360 x 360
Size1.5 inches or 1.65 inches1.6 inches1.08 inchesn/a1.3 inches
Touch
TypeAMOLEDTFT LCDn/aLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP685 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Android Wearn/an/aBuild-in
Apps
Music

All Wearables