Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Amazfit Stratos vs. Asus VivoWatch vs. Fitbit Alta HR

 
Flex 2
ZenWatch 3
Stratos
VivoWatch
Alta HR
 FitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowAmazfitStratosRemove Buy NowAsusVivoWatchRemove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$100$229$199$160$150
Release20162017201820182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours5 days24 hours to 10 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400320 x 300128 x 128128 x 36
Sizen/a1.39 inches1.34 inchesNA1.4 inches
Touchn/a
TypeLEDAMOLEDOLEDNAOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2ProprietaryKoodOS
Apps
Music

All Wearables