Fitbit Alta vs. Asus ZenWatch vs. Fitbit Charge HR vs. Fitbit Flex vs. Amazfit GTS

 
Alta
ZenWatch
Charge HR
Flex
GTS
 FitbitAltaRemove Buy NowAsusZenWatchRemove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$130$150$150$100$150
Release20162014201520132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA5 days5 days14 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NANA348 x 442
Sizen/a1.63 inchesNANA1.65 inches
Touchn/aNANA
TypeOLEDAMOLEDOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIP551 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/aNA
TextsNA

Software

Operating Systemn/aAndroid WearNANAWear OS
Apps
Music

All Wearables