Apple Watch Series 3 vs. Fitbit Flex 2 vs. Asus ZenWatch vs. Fitbit Charge vs. Fitbit Inspire HR

 
Watch Series 3
Flex 2
ZenWatch
Charge
Inspire HR
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowAsusZenWatchRemove Buy NowFitbitChargeRemove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$329$100$150$130$99
Release20172016201420142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 daysNA7-10 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/a320 x 320NA139 x 60
Size1.5 inches or 1.65 inchesn/a1.63 inchesNA1.4 inches
Touchn/aNA
TypeAMOLEDLEDAMOLEDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP551 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemWatchOS 4n/aAndroid WearNAFitbit OS
Apps
Music

All Wearables