Fitbit Alta vs. Fitbit Charge 2 vs. Fitbit Flex 2 vs. Huawei Talkband B2 vs. Casio WSD-F20A

 
Alta
Charge 2
Flex 2
Talkband B2
WSD-F20A
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowFitbitFlex 2Remove Buy NowHuaweiTalkband B2Remove Buy NowCasioWSD-F20ARemove Buy Now

Basic Info

Suggested Price$130$150$100$180$399
Release20162016201620152018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days5 days3 days1 day
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a128 x 88320 x 320
Sizen/an/an/a0.73 inches1.32 inches
Touchn/an/an/a
TypeOLEDOLEDLEDPMOLEDLCD

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/an/a5 ATMIP575 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/an/an/aWear OS
Apps
Music

All Wearables