Fitbit Flex 2 vs. Fitbit Zip vs. Amazfit Arc vs. Garmin 645 Music vs. Garmin Chronos

 
Flex 2
Zip
Arc
645 Music
Chronos
 FitbitFlex 2Remove Buy NowFitbitZipRemove Buy NowAmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowGarminChronosRemove Buy Now

Basic Info

Suggested Price$100$60$69.99$450$1500
Release20162012201620182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days6 months20 days7 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a72 x40240 x 240218 x 218
Sizen/an/a0.42 inches1.2 inches1.2 inches
Touchn/a
TypeLEDn/aOLEDMIPMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplash ResistantIP675 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables