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

 
Alta
Forerunner 935
645 Music
Charge 3
GTS
 FitbitAltaRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$130$500$450$150$150
Release20162017201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 2 weeks7 days7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a240 x 240240 x 24066 x 18348 x 442
Sizen/a1.2 inches1.2 inches.721 inches1.65 inches
Touchn/a
TypeOLEDLCDMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aNAWear OS
Apps
Music

All Wearables