Fitbit Charge 2 vs. Asus ZenWatch vs. Fitbit Alta HR vs. Apple Watch Series 4 vs. HTC re Grip

 
Charge 2
ZenWatch
Alta HR
Watch Series 4
re Grip
 FitbitCharge 2Remove Buy NowAsusZenWatchRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$150$150$150$329$199
Release20162014201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA7 daysNot Yet5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320128 x 36384 x 480160 x 32
Sizen/a1.63 inches1.4 inches1.78 inches1.8 inches
Touchn/a
TypeOLEDAMOLEDOLEDMicroLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIP55Not YetIP57

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearWatch OS 5NA
Apps
Music

All Wearables