Hm. I'd love to hear the science behind why that would be the case. Perhaps the components are more energy-efficient nowadays? If that's the case, disabling them would still save battery life.
Also, what's up with the wording "unlike some older Android phones"? Turning off 3g, wi-fi, and bluetooth conserves the battery on older iPhones (my iPhone 4, for instance) as well.
This is what my daily usage looks like with Bluetooth, Wifi, GPS and LTE being on
always
6:30am- I wake up for work and take my phone off the charger
7:15-8:00am I listen to music in the car on the way to work over bluetooth
8:00-5:00pm My phone is constantly waking up because I have exchange e-mails pushed to it.
5:00-6:00pm- I stream TwitTV podcasts on the way home from work.
6:00pm I am at home and still have 45-50% battery life left... Some nights I wont even charge it over night but charge it on the way to work in the morning.
now either I
don't talk as much as some people do on the phone (because I mostly text) or I
don't play games or read on my phone like most people do.
I really don't see a need to turn these features off unless I know for a fact that I wont be near a charger for more than 12 hours.
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regardless of how advanced these technology have become, turning off these options still saves a lot of battery. It will remain this way until battery technology improves significantly
The difference between edge and 3G or 3G versus LTE could be an entire hour or two that your phone could be on before the battery dies. (as in my case for the edge vs 3G)
Look at GPS for example, that still sucks up a ton of battery
Go to settings > privacy > location services in iOS 6.
Apps that have a grey arrow next to them indicate that they used GPS at some point recently (could be a few hours, few minutes,)
Apps that have a purple arrow next to them indicate GPS is in use right now by that app.
in my current list the hits are on maps, find friends, opensignal. I used all 3 of those apps today. Nothing else has used GPS. The idea that having GPS turned on means its going to drain battery is not true.
Now if you read recent posts you'd see users complaining about Google Now..because that app
always triggers the GPS arrow indicating it's always checking where you are. This constant use of GPS would definately drain battery.