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jason938

WIFI and Mobile Data

13 hours ago, jason938 said:

Can anyone explain me how they work together? Personally, when I'm at home, I activate WIFI and disable Mobile Data and when I'm heading outside, I disable wifi and enable mobile data, but for my mom this procedure will be too much and I was thinking to enable them both for her. What I'm wondering - will she have Internet all the time? How they work together? If she comes home and they are both activated home will give priority to WIFI and it will use it instead of mobile data even if it's enabled? Or it will still use Mobile data or...?

Keep both enabled and it'll switch to WiFi when available and use mobile data in all other cases. Not sure on iPhone but on Android go into the network settings (as a precaution) and disable WiFi scanning and, if it's an option, disable to automatically connect to open hotspots. That way only the trusted ones will be connected. Battery drain is negligible, honestly, when both are enabled unless your battery is terrible to begin with. She'll have Internet all the time, assuming she has a data plan, when using either WiFi or the mobile network.

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Posted · Original PosterOP

Can anyone explain me how they work together? Personally, when I'm at home, I activate WIFI and disable Mobile Data and when I'm heading outside, I disable wifi and enable mobile data, but for my mom this procedure will be too much and I was thinking to enable them both for her. What I'm wondering - will she have Internet all the time? How they work together? If she comes home and they are both activated home will give priority to WIFI and it will use it instead of mobile data even if it's enabled? Or it will still use Mobile data or...?

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I can only tell for iPhones but I suspect/suppose they work the same on Android:
The phone automatically switches from cellular to wifi, as soon as it is connected to one and will therefore not use your valuable data, it will also switch back to cellular once you have disconnected from wifi...

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19 minutes ago, jason938 said:

will she have Internet all the time? How they work together? If she comes home and they are both activated home will give priority to WIFI and it will use it instead of mobile data even if it's enabled? Or it will still use Mobile data or...?

Yes. Yes it will choose Wifi over mobile data, always. The phone will use more power when Wifi is enabled all the time, but who cares, she dosen't close her apps either lol.


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Posted · Original PosterOP
20 minutes ago, Mephi00 said:

I can only tell for iPhones but I suspect/suppose they work the same on Android:
The phone automatically switches from cellular to wifi, as soon as it is connected to one and will therefore not use your valuable data, it will also switch back to cellular once you have disconnected from wifi...

And on screen they will be both enable, but only WIFI will work when being in WIFI range, right?

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9 minutes ago, jason938 said:

And on screen they will be both enable, but only WIFI will work when being in WIFI range, right?

I think some phones have the option to use cellular while using wifi for faster download speeds, but it should be possible to disable that and then it works just like you said (at least in ios, but I doubt any basic android distro would treat it differently)

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Phone will usually use wi-fi for internet if it's connected. If there is no internet access over wi-fi, it will remain connected and still rely on mobile data for internet.

 

Having both turned on will drain the battery faster as WiFi will just keep scanning for access points.

 

Keeping WiFi on while outside is very bad. Both the Google services on your phone and public WiFi access points are constantly monitoring for each other to trace the phone's location. As a result a lot of ads shown on the device will be adjusted to tempt the user into buying stuff that is in their immediate vicinity. Remember to also turn off WiFi scanning because otherwise your WiFi is still being used to trace you even when you turn it off.


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Please quote my post in your reply, so that I will be notified and can respond to it. Thanks.

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23 minutes ago, huilun02 said:

Phone will usually use wi-fi for internet if it's connected. If there is no internet access over wi-fi, it will remain connected and still rely on mobile data for internet.

 

Having both turned on will drain the battery faster as WiFi will just keep scanning for access points.

 

Keeping WiFi on while outside is very bad. Both the Google services on your phone and public WiFi access points are constantly monitoring for each other to trace the phone's location. As a result a lot of ads shown on the device will be adjusted to tempt the user into buying stuff that is in their immediate vicinity. Remember to also turn off WiFi scanning because otherwise your WiFi is still being used to trace you even when you turn it off.

I agree with what you're saying. But, at the same time, trying to explain this stuff to non-techies is almost laughable... they don't care. The OPs mom just wants it to switch connections when needed to give her internet access 24/7.


Please quote my post, or put @paddy-stone if you want me to respond to you, I may not see your post otherwise.

 

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Posted · Best Answer
13 hours ago, jason938 said:

Can anyone explain me how they work together? Personally, when I'm at home, I activate WIFI and disable Mobile Data and when I'm heading outside, I disable wifi and enable mobile data, but for my mom this procedure will be too much and I was thinking to enable them both for her. What I'm wondering - will she have Internet all the time? How they work together? If she comes home and they are both activated home will give priority to WIFI and it will use it instead of mobile data even if it's enabled? Or it will still use Mobile data or...?

Keep both enabled and it'll switch to WiFi when available and use mobile data in all other cases. Not sure on iPhone but on Android go into the network settings (as a precaution) and disable WiFi scanning and, if it's an option, disable to automatically connect to open hotspots. That way only the trusted ones will be connected. Battery drain is negligible, honestly, when both are enabled unless your battery is terrible to begin with. She'll have Internet all the time, assuming she has a data plan, when using either WiFi or the mobile network.


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