Samsung Gear S2 vs. Huawei Talkband B2 vs. Garmin 645 Music vs. Fitbit Flex

 
Gear S2
Talkband B2
645 Music
Flex
 SamsungGear S2Remove Buy NowHuaweiTalkband B2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$180$450$100
Release2015201520182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days3 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360128 x 88240 x 240NA
Size1.2 inches0.73 inches1.2 inchesNA
TouchNA
TypeSuper AMOLEDPMOLEDMIPLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IP575 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aNA
Apps
Music

All Wearables