Apple Watch Series 3 vs. Sony SmartWatch 3 vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Xiaomi Mi Band 4

 
Watch Series 3
SmartWatch 3
Flex
Forerunner 45
Mi Band 4
 AppleWatch Series 3Remove Buy NowSonySmartWatch 3Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$329$250$100$199$25
Release20172014201320192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours2 days5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 320NA208 x 208120x240
Size1.5 inches or 1.65 inches1.6 inchesNA1.04 inches0.95 inches
TouchNA
TypeAMOLEDTFT LCDLEDLCDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP681 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Android WearNABuilt-inAMAZFIT OS
Apps
Music

All Wearables