Apple Watch Series 2 vs. Fitbit Ionic vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Garmin Chronos

 
Watch Series 2
Ionic
Forerunner 935
645 Music
Chronos
 AppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowGarminChronosRemove Buy Now

Basic Info

Suggested Price$269$299$500$450$1500
Release20162017201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours4+ daysUp to 2 weeks7 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312348x250240 x 240240 x 240218 x 218
Size1.5 inches or 1.65 inches1.421.2 inches1.2 inches1.2 inches
Touch
TypeAMOLEDOLEDLCDMIPMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM50m5 ATM5 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSFitbit OSWear OS
Apps
Music

All Wearables