Fitbit Flex 2 vs. Huawei Talkband B2 vs. Garmin 645 Music vs. Garmin VivoActive 4 vs. Apple SE

 
Flex 2
Talkband B2
645 Music
VivoActive 4
SE
 FitbitFlex 2Remove Buy NowHuaweiTalkband B2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivoActive 4Remove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$100$180$450$349$279
Release20162015201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days7 days8 days18 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 88240 x 240260 x 260384 x 480
Sizen/a0.73 inches1.2 inches1.3ionches40mm
Touchn/a
TypeLEDPMOLEDMIPMIPMicroLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATMIP575 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSWatchOS 5
Apps
Music

All Wearables