Polar Loop 2 vs. Xiaomi Mi Band 2 vs. Michael Kors Access Sofie vs. Fitbit Alta HR vs. Sony SmartBand

 
Loop 2
Mi Band 2
Access Sofie
Alta HR
SmartBand
 PolarLoop 2Remove Buy NowXiaomiMi Band 2Remove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitAlta HRRemove Buy NowSonySmartBandRemove Buy Now

Basic Info

Suggested Price$120$23$395$150$100
Release20152016201720172014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Stepsn/a
Swim

Battery

Duration8 days (without notifications)20 hours1 day7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/an/a390 x 390 1.19 inches128 x 36NA
Sizen/a0.42 inches1.4 inchesNA
TouchAMOLDEDNA
TypeLEDOLEDOLEDNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP671 ATMIP58

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0NA
Apps
Music

All Wearables