Apple Watch Series 3 vs. ASUS ZenWatch 2 vs. Fitbit Flex 2 vs. HTC re Grip vs. Apple Series 6

 
Watch Series 3
ZenWatch 2
Flex 2
re Grip
Series 6
 AppleWatch Series 3Remove Buy NowASUSZenWatch 2Remove Buy NowFitbitFlex 2Remove Buy NowHTCre GripRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$329$150$100$199$399
Release20172016201620202020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hoursn/a5 days5 hours to 2.5 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312320 x 320n/a160 x 32384 x 480
Size1.5 inches or 1.65 inches1.63 inches or 1.45 inchn/a1.8 inches40mm
Touchn/a
TypeAMOLEDAMOLEDLEDPMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATMIP675 ATMIP57

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemWatchOS 4Android Wearn/aNAWatchOS 5
Apps
Music

All Wearables