Sony SmartBand 2 vs. Apple Watch vs. Fitbit Flex vs. Jaybird Reign vs. Xiaomi Mi Band 4

 
SmartBand 2
Watch
Flex
Reign
Mi Band 4
 SonySmartBand 2Remove Buy NowAppleWatchRemove Buy NowFitbitFlexRemove Buy NowJaybirdReignRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$130$349$100$150$25
Release20152015201320152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days18 hours5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a340 x 272 or 390 x 312NANA120x240
Sizen/a1.5 inches or 1.65 inchesNANA0.95 inches
Touchn/aNANA
Typen/aAMOLEDLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP58IPX71 ATMNA5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSNANAAMAZFIT OS
Apps
Music

All Wearables