Fitbit Flex 2 vs. Amazfit Bip vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Apple SE

 
Flex 2
Bip
645 Music
Vivofit 4
SE
 FitbitFlex 2Remove Buy NowAmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$100$99.99$450$79.95$279
Release20162018201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days30 days7 days1 year18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a176 x 176240 x 24088 x 88384 x 480
Sizen/a1.28 inches1.2 inchesNA40mm
Touchn/a
TypeLEDNAMIPNAMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATMIP685 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatchOS 5
Apps
Music

All Wearables