Samsung Gear S vs. Samsung Gear S2 vs. Huawei Talkband B2 vs. Casio WSD-F20A vs. Fitbit Charge 3

 
Gear S
Gear S2
Talkband B2
WSD-F20A
Charge 3
 SamsungGear SRemove Buy NowSamsungGear S2Remove Buy NowHuaweiTalkband B2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitCharge 3Remove Buy Now

Basic Info

Suggested Price$250$300$180$399$150
Release20132015201520182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2-3 days3 days1 day7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFCNA
Wi-Fi

Display

Color
Resolution480 x 360360 x 360128 x 88320 x 32066 x 18
Size2 inches1.2 inches0.73 inches1.32 inches.721 inches
Touch
TypeSuper AMOLEDSuper AMOLEDPMOLEDLCDOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP68IP575 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizenn/aWear OSNA
Apps
Music

All Wearables