Fitbit Charge 2 vs. Fitbit Flex 2 vs. Fitbit Alta HR vs. Diesel On Full Guard 2.5 vs. HTC re Grip

 
Charge 2
Flex 2
Alta HR
On Full Guard 2.5
re Grip
 FitbitCharge 2Remove Buy NowFitbitFlex 2Remove Buy NowFitbitAlta HRRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$150$100$150$325$199
Release20162016201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days4 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/an/a128 x 36454x454160 x 32
Sizen/an/a1.4 inches1.39 inches1.8 inches
Touchn/an/a
TypeOLEDLEDOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM3 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSNA
Apps
Music

All Wearables