Fitbit Alta vs. Garmin 645 Music vs. Apple Watch Series 4 vs. Xiaomi Mi Band 4

 
Alta
645 Music
Watch Series 4
Mi Band 4
 FitbitAltaRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch Series 4Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$130$450$329$25
Release2016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 daysNot Yet20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240384 x 480120x240
Sizen/a1.2 inches1.78 inches0.95 inches
Touchn/a
TypeOLEDMIPMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMNot Yet5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OS 5AMAZFIT OS
Apps
Music

All Wearables