What connection does Android use when both WiFi and mobile data are simultaneously enabled?

Dr.Sunil Vaswani November 13, 2012

Which connection/s does an Android use when both wifi and data connection are enabled? Does an Android use wifi or data cellular connection or both!?

  1. Sathya Murthy
    November 30, 2012 at 5:09 am

    If WiFi is available then the mobileData is temporarily disabled and internet is connected via WiFi. When WiFi is not available then the MobileData connectivity gets enabled automatically

  2. Kannon Y
    November 18, 2012 at 4:07 am

    Hello Sunil!

    Android actually does support simultaneous connection for both 3G and WiFi devices, through an amazing app called SuperSpeed. On LTE phones it will dramatically increase connect speeds.

    As others have said, when both WiFi and 3G are simultaneously connected, only WiFi will work.

    • Dr.Sunil Vaswani
      November 20, 2012 at 12:16 pm

      I understand

  3. Harry Barnes
    November 15, 2012 at 6:06 pm


    • Dr.Sunil Vaswani
      November 18, 2012 at 7:15 am


      because answer is actually 2 or 4 alphabets

  4. Dr.Sunil Vaswani
    November 15, 2012 at 7:41 am

    Thanks to respondents for answering

    I have marked this question as resolved but discussions and counter-debates are welcome

  5. Boni Oloff
    November 14, 2012 at 9:19 am

    It will only used one of them, which one is the used first or selected.

    • Dr.Sunil Vaswani
      November 15, 2012 at 7:43 am


      You mean if 3g is used first and then wifi is enabled with 3g allready on then it would use 3g even though wifi is simultaneously on?


      • Boni Oloff
        November 15, 2012 at 7:49 am

        Iy you enabled the WiFi, then it will start using the WiFi, because that means you select to connect with it. But you wont get to internet using the 3G anymore.

        • Dr.Sunil Vaswani
          November 20, 2012 at 12:13 pm

          Yes I understand , which is what you have mentioned same in your first response.

          But your response implies what is contradictory to consensus answer of all other respondents

          Can you mention an authorized weblink reference to support your answer?

  6. Cyra Calkhoven
    November 13, 2012 at 8:52 pm

    It will choose wifi over 3G

  7. Dimal Chandrasiri
    November 13, 2012 at 6:51 pm

    In ICS it, automatically selects the wifi connection over the data connection if wifi is available while the data is also available. the reason for this is, that most wifi hotspots provide free connection and another reason is that charges are more cheap than the data connection

  8. Ahmed Khalil
    November 13, 2012 at 6:45 pm

    WIFI has the priority if bot enabled

  9. Pwince Khan
    November 13, 2012 at 4:14 pm

    you must set it up before browsing..for example i use opera and when there is wifi i go to opera connections and change it to wifi..

  10. Rakesh Mishra
    November 13, 2012 at 2:53 pm

    i m also having android phone and most of the times it uses wifi connection because wifi is having more speed as compare to 2g network

  11. ha14
    November 13, 2012 at 8:56 am

    you cant make call with wifi on the road so will go with mobile data, some apps might have section toggling between two data so if you choose wifi then will go with that.

    • Veronica
      February 25, 2013 at 6:12 pm

      So most apps (Google Maps, Gmail, Pandora) will use Wifi if enabled and available over the moblie data network?

      Are there apps that can only use a mobile data network.

    • ha14
      February 25, 2013 at 11:25 pm

      well they need some sort of connection to outside if updates are needed so they will choose which ever is available wifi, 3G...

      i don't know any applications that only works with mobile data network, if such application exist it means it works like phone call, pay per usage.

      you can choose which application to update via wifi or 3G...

      •Open up the Google Play App on your Android device
      •Press the menu icon to bring up the menu list
      •Choose “Settings”
      •Check the box that says “Update over Wi-Fi only”

  12. Anonymous
    November 13, 2012 at 7:20 am

    android will use wifi over network connection but as Drew Butler said, be sure that wifi connection is strong enough and won't drop...

  13. Daniel Ooi
    November 13, 2012 at 6:01 am

    It will use wifi if you are connected. when disconnected from wifi, cellular data will be use. You should disable cellular data if you do not sign up a data plan to get a bill shock.

  14. Scott Pettersen
    November 13, 2012 at 5:59 am

    Wifi will be the Primary Data connection IF you are connected to a WiFi connection. If your Wifi connection is lost...your cellular data will kick in (3G 4G etc)

  15. Drew Butler
    November 13, 2012 at 5:48 am

    Both above answers are correct. My only addition to this is to be careful starting updates with an unreliable wifi connection. Example: Started downloading a game that was over 1 gig and halfway through my wifi connection dropped and the phone tried to switch back to 3g and the result was the download becoming invalid/corrupt and needed to restart which is rather frustrating being it was such a large download to begin with...

    • Drew Butler
      November 13, 2012 at 4:47 pm

      Just wanted to add that automatically updating is almost never a good thing and definitely if you drop your wifi connection a lot.. If your apps are set to auto-update and you're using 2g/3g(not including 4g in this although if you are using a prepaid carrier/plan with 4g it is usually limited unlike contract plans)it could lead to you incurring overages with your mobile carrier. Another reason auto-update isn't really good is s becomes sometimes issues come along with updates and if you don't use a program to backup apps you could end up stuck with an app that now force closes or has a loss of functionality. Although my statements are based on facts I do want to say that everyone has their own opinions and these are just mine... Hope this information helps some people in the future. Everyone have a good day.

    • Tim
      November 17, 2012 at 6:25 pm

      Good points. However, I believe system updates may be automatically over-the-air. At least the ones coming from the carrier.

  16. Rajaa Chowdhury
    November 13, 2012 at 4:19 am

    I think it prioritises WiFi over cellular when both the channels are available and enabled together.

    • Dr.Sunil Vaswani
      November 13, 2012 at 5:52 am


  17. Aniket Singh
    November 13, 2012 at 2:52 am

    android can use either wifi aur ur net connection...but at a time it only use only one connection

    • Dr.Sunil Vaswani
      November 13, 2012 at 5:54 am

      Please check that question is which one of the two?


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