Fitbit Flex 2 vs. Garmin Vivosmart HR vs. ASUS ZenWatch 3 vs. Xiaomi Mi Band 3 vs. Apple Watch Series 4

 
Flex 2
Vivosmart HR
ZenWatch 3
Mi Band 3
Watch Series 4
 FitbitFlex 2Remove Buy NowGarminVivosmart HRRemove Buy NowASUSZenWatch 3Remove Buy NowXiaomiMi Band 3Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$100$170$229$44.95$329
Release20162015201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days48 hours20 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 68400 x 400128 x 80384 x 480
Sizen/a1.08 inches1.39 inches0.78 inches1.78 inches
Touchn/a
TypeLEDn/aAMOLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2Watch OS 5
Apps
Music

All Wearables