Polar M400 vs. Fitbit One vs. Fitbit Alta HR vs. Xiaomi Mi Band 3 vs. Amazfit GTR

 
M400
One
Alta HR
Mi Band 3
GTR
 PolarM400Remove Buy NowFitbitOneRemove Buy NowFitbitAlta HRRemove Buy NowXiaomiMi Band 3Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$200$100$150$44.95$199
Release20142012201720182019

Activity & Fitness

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

Battery

Duration8 hours to 30 days10-14 days7 days20 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a128 x 36128 x 80454 x 454
Sizen/an/a1.4 inches0.78 inches1.39 inches
Touch
Typen/aOLEDOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMSplast Resistant5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-in
Apps
Music

All Wearables