Fitbit Alta vs. Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Diesel On Full Guard vs. Diesel On Full Guard 2.5

 
Alta
Flex 2
Forerunner 935
On Full Guard
On Full Guard 2.5
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowDieselOn Full GuardRemove Buy NowDieselOn Full Guard 2.5Remove Buy Now

Basic Info

Suggested Price$130$100$500$325$325
Release20162016201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 daysUp to 2 weeks1 day4 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 240454 x 454454x454
Sizen/an/a1.2 inches1.4 inches1.39 inches
Touchn/an/a
TypeOLEDLEDLCDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATMIP673 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0Wear OS
Apps
Music

All Wearables