Fitbit Flex 2 vs. Garmin Vivosmart HR vs. Garmin Forerunner 45 vs. Garmin Vivosmart 4 vs. Apple SE

 
Flex 2
Vivosmart HR
Forerunner 45
Vivosmart 4
SE
 FitbitFlex 2Remove Buy NowGarminVivosmart HRRemove Buy NowGarminForerunner 45Remove Buy NowGarminVivosmart 4Remove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$100$170$199$130$279
Release20162015201920182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days7 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/a160 x 68208 x 20848 x 128384 x 480
Sizen/a1.08 inches1.04 inches0.74 inches40mm
Touchn/a
TypeLEDn/aLCDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuilt-inWatchOS 5
Apps
Music

All Wearables