Fitbit Flex 2 vs. Garmin Vivofit 4 vs. Garmin Forerunner 45 vs. Garmin VivoActive 4 vs. HTC re Grip

 
Flex 2
Vivofit 4
Forerunner 45
VivoActive 4
re Grip
 FitbitFlex 2Remove Buy NowGarminVivofit 4Remove Buy NowGarminForerunner 45Remove Buy NowGarminVivoActive 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$100$79.95$199$349$199
Release20162018201920192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 year7 days8 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a88 x 88208 x 208260 x 260160 x 32
Sizen/aNA1.04 inches1.3ionches1.8 inches
Touchn/a
TypeLEDNALCDMIPPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aBuilt-inWear OSNA
Apps
Music

All Wearables