Sony SmartWatch 3 vs. Fitbit Alta vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Amazfit GTS

 
SmartWatch 3
Alta
Forerunner 935
645 Music
GTS
 SonySmartWatch 3Remove Buy NowFitbitAltaRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$250$130$500$450$150
Release20142016201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 daysUp to 2 weeks7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/a240 x 240240 x 240348 x 442
Size1.6 inchesn/a1.2 inches1.2 inches1.65 inches
Touchn/a
TypeTFT LCDOLEDLCDMIPAMOLED

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/aWear OS
Apps
Music

All Wearables