Fitbit Alta vs. Fitbit Flex 2 vs. Fitbit Charge vs. Diesel On Full Guard 2.5 vs. Amazfit GTS

 
Alta
Flex 2
Charge
On Full Guard 2.5
GTS
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowFitbitChargeRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$130$100$130$325$150
Release20162016201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7-10 days4 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/aNA454x454348 x 442
Sizen/an/aNA1.39 inches1.65 inches
Touchn/an/aNA
TypeOLEDLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aNAWear OSWear OS
Apps
Music

All Wearables