Fitbit One vs. Apple Watch Series 2 vs. Casio WSD-F20A vs. Fitbit Flex vs. Garmin Vivosmart HR Plus

 
One
Watch Series 2
WSD-F20A
Flex
Vivosmart HR Plus
 FitbitOneRemove Buy NowAppleWatch Series 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart HR PlusRemove Buy Now

Basic Info

Suggested Price$100$269$399$100$179
Release20122016201820132017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days18 hours1 day5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312320 x 320NA160 x 68
Sizen/a1.5 inches or 1.65 inches1.32 inchesNA0.5 inches x 0.8 inches
TouchNA
TypeOLEDAMOLEDLCDLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant5ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWear OSNANA
Apps
Music

All Wearables