Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fossil Gen 5 Smartwatch Carlyle

 
Flex 2
ZenWatch 3
645 Music
Alta HR
Gen 5 Smartwatch Carlyle
 FitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy Now

Basic Info

Suggested Price$100$229$450$150$295
Release20162017201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours7 days7 days1 day
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400240 x 240128 x 36328 x 328
Sizen/a1.39 inches1.2 inches1.4 inches1.3 inches
Touchn/a
TypeLEDAMOLEDMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Wear OS
Apps
Music

All Wearables