Fitbit Ionic vs. Garmin 645 Music vs. Garmin Vivosmart HR Plus vs. Polar A370 vs. Amazfit GTS

 
Ionic
645 Music
Vivosmart HR Plus
A370
GTS
 FitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart HR PlusRemove Buy NowPolarA370Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$299$450$179$179.95$150
Release20172018201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days7 days5 daysUp to 3 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240160 x 68160 x 80348 x 442
Size1.421.2 inches0.5 inches x 0.8 inches1.18 inches1.65 inches
Touch
TypeOLEDMIPLCDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM5 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNAWear OS
Apps
Music

All Wearables