Polar M400 vs. Fitbit Alta vs. Apple Watch Series 2 vs. Motorola Moto 360 (1st Gen) vs. Xiaomi Mi Band

 
M400
Alta
Watch Series 2
Moto 360 (1st Gen)
Mi Band
 PolarM400Remove Buy NowFitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowXiaomiMi BandRemove Buy Now

Basic Info

Suggested Price$200$130$269$150$15
Release20142016201620142015

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days18 hours1 day30 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/an/a340 x 272 or 390 x 312320 x 260NA
Sizen/an/a1.5 inches or 1.65 inches1.56 inchesNA
Touchn/aNA
Typen/aOLEDAMOLEDLCDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMn/a5ATMIP67IP67

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aWatch OSAndroid WearNA
Apps
MusicNA

All Wearables