Polar M400 vs. Withings Steel HR vs. Microsoft Band 2 vs. Misfit Ray vs. Xiaomi Mi Band

 
M400
Steel HR
Band 2
Ray
Mi Band
 PolarM400Remove Buy NowWithingsSteel HRRemove Buy NowMicrosoftBand 2Remove Buy NowMisfitRayRemove Buy NowXiaomiMi BandRemove Buy Now

Basic Info

Suggested Price$200$180$250$100$15
Release20142016201520162015

Activity & Fitness

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

Battery

Duration8 hours to 30 days25 days48 hours (without GPS)6 months30 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/aNA
Resolutionn/an/a320 x 128n/aNA
Sizen/an/a1.36 inchesn/aNA
Touchn/aNA
Typen/an/aCapacitative TFTLEDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATMIPX75 ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/an/aNA
Apps
Music

All Wearables