Fitbit Surge vs. Fitbit Flex 2 vs. Fitbit One vs. Amazfit Cor vs. Casio WSD-F20A

 
Surge
Flex 2
One
Cor
WSD-F20A
 FitbitSurgeRemove Buy NowFitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowAmazfitCorRemove Buy NowCasioWSD-F20ARemove Buy Now

Basic Info

Suggested Price$250$100$100$79.99$399
Release20162016201220182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days10-14 days12 days1 day
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a80 x 160320 x 320
Size1.26 inchesn/an/a1.23 inches1.32 inches
Touchn/a
TypeMonochrome LCDLEDOLEDIPS LCDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMSplast Resistant5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aWear OS
Apps
Music

All Wearables