Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Garmin 645 Music vs. Jawbone UP3 vs. Amazfit GTS

 
Flex 2
ZenWatch 3
645 Music
UP3
GTS
 FitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowGarmin645 MusicRemove Buy NowJawboneUP3Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$229$450$180$150
Release20162017201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours7 days7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400240 x 240NA348 x 442
Sizen/a1.39 inches1.2 inchesNA1.65 inches
Touchn/aNA
TypeLEDAMOLEDMIPNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMNA5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2NAWear OS
Apps
MusicNA

All Wearables