Fitbit Alta vs. Asus ZenWatch vs. Fitbit Flex vs. Amazfit GTS vs. Fitbit Sense 2

 
Alta
ZenWatch
Flex
GTS
Sense 2
 FitbitAltaRemove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy NowAmazfitGTSRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$130$150$100$150$300
Release20162014201320192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA5 days14 days6 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NA348 x 442336x336
Sizen/a1.63 inchesNA1.65 inches1.59 inches
Touchn/aNA
TypeOLEDAMOLEDLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emailsn/aNA
TextsNA

Software

Operating Systemn/aAndroid WearNAWear OS
Apps
Music

All Wearables