Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Forerunner 235 vs. Garmin Vivoactive 3 vs. Amazfit GTS

 
Flex 2
645 Music
Forerunner 235
Vivoactive 3
GTS
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy NowGarminVivoactive 3Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$450$299.99$299$150
Release20162018201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days9 days7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240215 x 180240 x 240348 x 442
Sizen/a1.2 inches1.23 inches1.2 inches1.65 inches
Touchn/a
TypeLEDMIPMIPMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OS
Apps
Music

All Wearables