The iPhone 5 uses Cellular Data over WiFi?

Lawrence Finch wrote:

truerock wrote:

I think cell radios use about 1 to 2 watts and a typical WiFi radio uses about 100mW. I'm not an expert on this but I believe cell radios are necessarily power hungry... they have to connect to remote cell towers.

Cell phone radios use from 50 MW to 5 watts, depending on signal strength. But ONLY when actually sending data (not even when receiving). WiFi uses power continuously, as long as the radio is on, whether sending, receiving, or just waiting for data.

Let me correct my own post. That should be 50 mw to 0.5 watts, not 5 watts. Left out the decimal point. Also, that's the radiated power. Assuming 50% efficiency in the RF chip the actual battery consumption would be roughly twice those numbers; 100 mw with 5 bars, 1 watt with 1 bar.

ios7 surely has data leak!!!!! I am on verizon wireless family plan with 4 iphone(all on ios7) and 1 andriod all using a 4gb a month plan. Every month i get a text from verizon say i am using 75% of my date half way through the month which we barely use the phone on LTE. After investigating for two month now, sure enough ios7 is the culprit. i look on the verizon website to check all the data on all the phone that was on my family plan to see whats going on. ios7 every 6 hour of the day just automaticallly leak data usage without touching the phone. The one andriod phone on my family plan run perfect without the data leak and the 4 iphone on our family plan use 1gb per phone a month without even using phone. There is 1 iphone i use for business that never leave the house and on wifi 24/7 and this is how the data look like (look at the image i posted), i used this data sheet cause its the easier to see how ios7 automatically take data every 6 hr cause this phone dont leave the house. This is the same for all the iphone on my plan, but its just harder to see data leak on my other iphone because they are being use on LTE and the data charge is all mixed up. I am sure any of you guy has ios7 its doing the same thing, just look at your data sheet on your carrier site and notice their are 4 charges a day that is exact 6hr apart that are just leaking. This just totallly suck cause with 4 iphone, i just totally lose 4gb a month without even using it. APPLE NEED TO FIX THIS PROBLEM ASAP, ashame on apple for letting this happen.

"... ios7 surely has data leak!!!!! ... I am sure any of you guy has ios7 its doing the same thing, just look at your data sheet on your carrier site..."

My iPhone 5 with iOS7 is not leaking. I have the AT&T 300 MB plan, and at halfway through the month, have only used 25 MB. This will be a typical month for me, just using the data plan when away from the house to check the weather or read the news now and then.

Are you using LTE? I have the 5s and I also have a 300mb plan. When I have the LTE turned on I use about half my monthly limit in 2 days. When the LTE is turned off, I use about the same as you, 25mb in about half a month.

Yeah I have turn off LTE to see if it still leaking data, two day later check my data it still show 4 data charges a day on 3G service, very frustrated with this problem.

I don't understand what you mean by "4 data charges". How much data is that in MB (or GB?)

what i mean by 4 data charges is when you look at the data statement i posted on my original post show 4 time a day data will leak without using the iphone which all the charges is exactly 6 hrs apart exactly everyday.

Yeah all the data charge is in MB

"Are you using LTE? I have the 5s and I also have a 300mb plan. When I have the LTE turned on I use about half my monthly limit in 2 days. When the LTE is turned off, I use about the same as you, 25mb in about half a month."

Yes, my LTE is always enabled. Used 25 MB in 14 days. But I don't use the phone on 4G-LTE much, maybe 5-10 minutes a day for checking calander, weather, mapping, or news reports.

MaKHung wrote:

what i mean by 4 data charges is when you look at the data statement i posted on my original post show 4 time a day data will leak without using the iphone which all the charges is exactly 6 hrs apart exactly everyday.

The 6 hours is misleading. That is when your accumulated data usage is sent to the billing system. It is not when the data usage occurred. The actual data usage was spread out over the previous 6 hours.

No the data usage is not spread out over the previous 6 hour, cause on my personal line it show every single detail data i use on LTE like this image i have on here

That isn't much data; did you receive any emails during that 6 hour period?

See and on my business line which never leave the house the LTE leak exact every 6 hour, iphone just sit on my desk taking precious MB with out even the phone being used and that goes the same for all 4 iphone on my line. Only the adriod phone my family plan ain't doing this, so i suspect ios7 doing something every 6 hour.

The chart, whereever it is from, you are showing doesn't say that data is used once every 6 hours, it shows data being used over a 6 hour period. If you phone received emails, and did the usual business of updating location, weather and stocks that would be reasonable. I take it the column header on the column on the right is in kb?

The chart is my verizon wireless data chart and yes that all in MB not kb. I also have two buddies that use verizon wirelss they have exactly the same problem, so i call verizon to see whats going on and they told me that its something to do with the ios7.