Apple Watch Series 3 vs. ASUS ZenWatch 2 vs. Fitbit Ionic vs. Fitbit Charge HR vs. Apple Series 6

 
Watch Series 3
ZenWatch 2
Ionic
Charge HR
Series 6
 AppleWatch Series 3Remove Buy NowASUSZenWatch 2Remove Buy NowFitbitIonicRemove Buy NowFitbitCharge HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$329$150$299$150$399
Release20172016201720152020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hoursn/a4+ days5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 320348x250NA384 x 480
Size1.5 inches or 1.65 inches1.63 inches or 1.45 inch1.42NA40mm
TouchNA
TypeAMOLEDAMOLEDOLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATMIP6750m1 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemWatchOS 4Android WearFitbit OSNAWatchOS 5
Apps
Music

All Wearables