Fitbit Alta vs. Apple Watch Series 2 vs. ASUS ZenWatch 3 vs. Fitbit Flex vs. Apple Watch Ultra

 
Alta
Watch Series 2
ZenWatch 3
Flex
Watch Ultra
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitFlexRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$130$269$229$100$799
Release20162016201720132022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours48 hours5 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312400 x 400NA502x410 pixels
Sizen/a1.5 inches or 1.65 inches1.39 inchesNA1.92 inches
Touchn/aNA
TypeOLEDAMOLEDAMOLEDLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSAndroid Wear 2NAWatchOS 9
Apps
Music

All Wearables