Sony SmartWatch 3 vs. Fitbit Flex 2 vs. Apple Watch vs. Fitbit Alta HR vs. Xiaomi Mi Band 4

 
SmartWatch 3
Flex 2
Watch
Alta HR
Mi Band 4
 SonySmartWatch 3Remove Buy NowFitbitFlex 2Remove Buy NowAppleWatchRemove Buy NowFitbitAlta HRRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$250$100$349$150$25
Release20142016201520172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days18 hours7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution320 x 320n/a340 x 272 or 390 x 312128 x 36120x240
Size1.6 inchesn/a1.5 inches or 1.65 inches1.4 inches0.95 inches
Touchn/a
TypeTFT LCDLEDAMOLEDOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMIPX75 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWatch OSAMAZFIT OS
Apps
Music

All Wearables