Apple Watch Series 3 vs. Fitbit Flex 2 vs. Garmin Vivosmart vs. ASUS ZenWatch 3 vs. Fitbit Ionic

 
Watch Series 3
Flex 2
Vivosmart
ZenWatch 3
Ionic
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowGarminVivosmartRemove Buy NowASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy Now

Basic Info

Suggested Price$329$100$170$229$299
Release20172016201420172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days7 days48 hours4+ days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/a128 x 16400 x 400348x250
Size1.5 inches or 1.65 inchesn/a1.41 inches1.39 inches1.42
Touchn/a
TypeAMOLEDLEDOLEDAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM50m

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/an/aAndroid Wear 2Fitbit OS
Apps
Music

All Wearables