Sony SmartBand 2 vs. Polar A370 vs. Xiaomi Mi Band 4 vs. Apple Series 6

 
SmartBand 2
A370
Mi Band 4
Series 6
 SonySmartBand 2Remove Buy NowPolarA370Remove Buy NowXiaomiMi Band 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$179.95$25$399
Release2015201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 daysUp to 3 days20 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 80120x240384 x 480
Sizen/a1.18 inches0.95 inches40mm
Touchn/a
Typen/aTFT LCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceIP58WR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAMAZFIT OSWatchOS 5
Apps
Music

All Wearables