Polar M600 vs. Sony SmartWatch 3 vs. Fitbit Charge 2 vs. Acer Liquid Leap vs. Amazfit T-Rex

 
M600
SmartWatch 3
Charge 2
Liquid Leap
T-Rex
 PolarM600Remove Buy NowSonySmartWatch 3Remove Buy NowFitbitCharge 2Remove Buy NowAcerLiquid LeapRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$250$150$90$140
Release20162014201620152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days2 days5 days5 to 7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240320 x 320n/a128 x 32360 x 360
Size1.3 inches1.6 inchesn/a1 inch1.3 inches
Touchn/an/a
TypeTFTTFT LCDOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IP68n/aIPX45 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wearn/aBuild-in
Apps
Music

All Wearables