Polar M400 vs. Sony SmartBand Talk vs. Apple Watch Series 2 vs. Xiaomi Mi Band

 
M400
SmartBand Talk
Watch Series 2
Mi Band
 PolarM400Remove Buy NowSonySmartBand TalkRemove Buy NowAppleWatch Series 2Remove Buy NowXiaomiMi BandRemove Buy Now

Basic Info

Suggested Price$200$170$269$15
Release2014201420162015

Activity & Fitness

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

Battery

Duration8 hours to 30 days3 days18 hours30 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/a296 x 128340 x 272 or 390 x 312NA
Sizen/a1.4 inches1.5 inches or 1.65 inchesNA
TouchNA
Typen/aE InkAMOLEDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWatch OSNA
Apps
Music

All Wearables