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Does Data Disable When WiFi Is Connected?

Mine seems to have Wi-Fi shut off until I turn on my screen. I also think that I have my phone syncing automatically every 15 minutes in order to get messages. I use "Setting Profiles" and "JuiceDefender Ultimate."
 
Dude, Turn your wireless on and leave it on. Pair it to your most common wireless networks (I use Home, Work, Girlfriends house, Friends houses, girlfriends parents house,Local Pub, Mcdonalds and a few other often visited places)
Whenever the phone is in range of any of these places, it will automatically connect. As I walk/drive out of range it reverts back to 3G.
You seem to be getting a little hung up on battery drain. A word of advice..... don't. If you are at home, plug it in, at work? Plug it in. A friends house, chances are there will be a micro usb charger somewhere, plug it in... Unless you live in a tent, in which case you could argue that battery life is important.
Enjoy the phone and try not to get so hung up about battery life and what is draining it.
If you never turn it on, you''ll save loads ;)
Anyone told you about how much battery, bluetooth and GPS use? ;)
 
The location setting currently has me at like 1.85x. When I had it off, it was in the 1.7x range.
 
It seems to be working way better for me.

In the past 7+ hours, my battery went from 100% to 60%.
 
I wouldn't plug your phone in too often or you might mess the battery up and the battery will just die quicker and I don't trust public WiFi spots because there might be eves droppers.
 
Reviving this old thread because the OP seems to pose a similar question that I have been searching for.

Another new Android user here and confused about what Android controls. I have a Samsung Galaxy Proclaim (Illusion - S720C) running GB. I've also had a difficult time finding out if 3g is disabled when wifi is on.

Is the status bar the means by which to know what is actually running and consuming power?

It's confusing to me because I don't know what the phone is doing when the power control widget shows wifi is on and the notification and 3g watchdog mobile data switch both show 3g is enabled... and yet the status bar doesn't show 3g until wifi is disabled or disconnected.

That would indicate to me that if the notification screen 3g setting (which mirrors the 3g watchdog switch setting) is on, Android controls the radios such that 3g is disabled whenever wifi is enabled and connected.

And if I turn off 3g via the notification screen or the 3g Watchdog switch, Android will not turn 3g back on or control it until I manually turn it back on.

My conclusion is that regardless of 3g being enabled, wifi trumps 3g if wifi is connected.

The question the OP had (and me, as well): does having both radios turned on adversely affect battery life since only one is in use at any one time?

I have JD Plus, but have had mixed results controlling the radios with it. I have an unlimited plan so am not so concerned about usage, but moreso about battery life.
 
I don't know all the technical details, but I can definitely tell you having wireless connected (even without explicitly disabling mobile data) increases your battery life dramatically.

My guess is that the radios are still turned on, but they aren't constantly looking for a signal because you're already connected to wireless.
 
speedlever said:
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My conclusion is that regardless of 3g being enabled, wifi trumps 3g if wifi is connected.

snip
Click to expand...

I think this needs further definition. Trump is not very precise. Even if wifi is on, if I send/receive an MMS msg, that will go out over 3g. So even if wifi is connected, 3g must remain active in order to use services such as MMS. Correct?
 
Yes. You can have both connected, but Wifi > 3g, always. Until you send an MMS, your 3g will enable, but then disable.

Don't worry about it being on in settings, doesn't mean it's transferring data, and therefore, using up your allowances.
 
I wasn't worried about allowances but about battery power. Seems I was overly concerned about it too. I've now disabled JD from controlling 3g and only let it control wireless now. No more issues with MMS messages.
 
Serdroid12 said:
Yes. You can have both connected, but Wifi > 3g, always. Until you send an MMS, your 3g will enable, but then disable.

Don't worry about it being on in settings, doesn't mean it's transferring data, and therefore, using up your allowances.
Click to expand...

Any idea why I dont receive any notifications through wifi unless I have packet data enabled?

Is this because the notifications come through packet data and not wifi? Or is it that the packet data needs to be enabled for the notifications to come through the wifi?
 
It shouldn't matter if data is enabled to receive a text message, texts go through the radio band not the data network or wifi, unless you are using Google Voice or something similar like that that utilizes data/wifi to text.
 
I dont get why people are confused, hell, I leave my data turned off 99% of the time on my phone unless I'm actively using it, still can make calls, texts, etc. Cell phones were able to do both well before smartphones came out.
 
Best way to check and see is send a text or make a call and then check you online usage. If your carrier data works you will see it immediately. I use T-Mobile and it is almost instant and I keep my wifi on all the time.
 
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