ASUS ZenWatch 2 vs. Samsung Gear S2 vs. Fitbit Ionic vs. Garmin Forerunner 45 vs. Garmin VivoActive 4

 
ZenWatch 2
Gear S2
Ionic
Forerunner 45
VivoActive 4
 ASUSZenWatch 2Remove Buy NowSamsungGear S2Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 45Remove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$150$300$299$199$349
Release20162015201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2-3 days4+ days7 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution320 x 320360 x 360348x250208 x 208260 x 260
Size1.63 inches or 1.45 inch1.2 inches1.421.04 inches1.3ionches
Touch
TypeAMOLEDSuper AMOLEDOLEDLCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP6850m5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearTizenFitbit OSBuilt-inWear OS
Apps
Music

All Wearables