Fitbit One vs. Fitbit Alta HR vs. Garmin VivoActive 4 vs. HTC re Grip vs. Apple Series 6

 
One
Alta HR
VivoActive 4
re Grip
Series 6
 FitbitOneRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivoActive 4Remove Buy NowHTCre GripRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$150$349$199$399
Release20122017201920202020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days7 days8 days5 hours to 2.5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128 x 36260 x 260160 x 32384 x 480
Sizen/a1.4 inches1.3ionches1.8 inches40mm
Touch
TypeOLEDOLEDMIPPMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceSplast Resistant5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNAWatchOS 5
Apps
Music

All Wearables