Amazfit Bip vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fitbit Flex vs. Garmin Vivosmart 4

 
Bip
645 Music
Alta HR
Flex
Vivosmart 4
 AmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$99.99$450$150$100$130
Release20182018201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 days7 days7 days5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution176 x 176240 x 240128 x 36NA48 x 128
Size1.28 inches1.2 inches1.4 inchesNA0.74 inches
TouchNA
TypeNAMIPOLEDLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNA
Apps
Music

All Wearables