Fitbit One vs. Apple Watch Series 2 vs. ASUS ZenWatch 3 vs. Asus ZenWatch vs. Fitbit Flex

 
One
Watch Series 2
ZenWatch 3
ZenWatch
Flex
 FitbitOneRemove Buy NowAppleWatch Series 2Remove Buy NowASUSZenWatch 3Remove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$100$269$229$150$100
Release20122016201720142013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days18 hours48 hoursNA5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312400 x 400320 x 320NA
Sizen/a1.5 inches or 1.65 inches1.39 inches1.63 inchesNA
TouchNA
TypeOLEDAMOLEDAMOLEDAMOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant5ATMIP551 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aWatch OSAndroid Wear 2Android WearNA
Apps
Music

All Wearables