Fitbit Flex 2 vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Diesel On Full Guard 2.5 vs. Amazfit GTS

 
Flex 2
Forerunner 235
Flex
On Full Guard 2.5
GTS
 FitbitFlex 2Remove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$299.99$100$325$150
Release20162017201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days9 days5 days4 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a215 x 180NA454x454348 x 442
Sizen/a1.23 inchesNA1.39 inches1.65 inches
Touchn/aNA
TypeLEDMIPLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OSWear OS
Apps
Music

All Wearables