Fitbit One vs. Apple Watch Series 2 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Garmin 645 Music

 
One
Watch Series 2
Ionic
WSD-F20A
645 Music
 FitbitOneRemove Buy NowAppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$100$269$299$399$450
Release20122016201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days18 hours4+ days1 day7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312348x250320 x 320240 x 240
Sizen/a1.5 inches or 1.65 inches1.421.32 inches1.2 inches
Touch
TypeOLEDAMOLEDOLEDLCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant5ATM50m5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSFitbit OSWear OS
Apps
Music

All Wearables