Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Fitbit Ionic vs. Samsung Gear 2 vs. Amazfit GTR

 
Flex 2
ZenWatch 3
Ionic
Gear 2
GTR
 FitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowSamsungGear 2Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$229$299$300$199
Release20162017201720142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Duration5 days48 hours4+ days2-3 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400348x250320 x 320454 x 454
Sizen/a1.39 inches1.421.63 inches1.39 inches
Touchn/a
TypeLEDAMOLEDOLEDSuper AMOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50mIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Fitbit OSTizen OSBuild-in
Apps
Music

All Wearables