Fitbit Flex 2 vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Garmin Vivosmart 4 vs. Garmin Venu

 
Flex 2
Flex
Forerunner 45
Vivosmart 4
Venu
 FitbitFlex 2Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowGarminVivosmart 4Remove Buy NowGarminVenuRemove Buy Now

Basic Info

Suggested Price$100$100$199$130$299
Release20162013201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/aNA208 x 20848 x 128390 x 390
Sizen/aNA1.04 inches0.74 inches1.2 inches
Touchn/aNA
TypeLEDLEDLCDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-inWear OS
Apps
Music

All Wearables