Sony SmartWatch 3 vs. Fitbit Alta vs. Garmin Forerunner 45 vs. Xiaomi Mi Band 4 vs. Amazfit T-Rex

 
SmartWatch 3
Alta
Forerunner 45
Mi Band 4
T-Rex
 SonySmartWatch 3Remove Buy NowFitbitAltaRemove Buy NowGarminForerunner 45Remove Buy NowXiaomiMi Band 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$130$199$25$140
Release20142016201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days7 days20 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/a208 x 208120x240360 x 360
Size1.6 inchesn/a1.04 inches0.95 inches1.3 inches
Touchn/a
TypeTFT LCDOLEDLCDAMOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a5 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/aBuilt-inAMAZFIT OSBuild-in
Apps
Music

All Wearables