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Re: Its not Wifi, but GPRS that is consuming most of the battery
i sold off an iphone 3G to get the N900. much of my experience contradicts the comparisons you're making.
- i ran the iphone in 2G mode ALL THE TIME... because it was the only way to get a full day's use out of it. 3G would be switched on when the data speed was required, and then immediately switched off again. this, btw, required jailbreaking to accomplish in a usable manner, because apple buried the factory toggle switch 3 menus deep. - the 3G doesn't multi-task and, frankly, runs like **** on iOS 4.0. 3GS/4G may address some of this. i think any smartphone is going to require the user to make some compromises in order to balance usage with battery life. i had a balance with the 3G and i'm working on settling into one on the N900. i do know that the N900 is giving me a lot more reason to want to get at that data, so i can't just leave it in my pocket like i would with the 3G. that's a good thing... now i just need to figure out how to reliably get a full day's use out of it with data speeds that are reasonable. i'll let you know how it goes. |
Re: Its not Wifi, but GPRS that is consuming most of the battery
Why are android phones left out of this? Any experience on how they compare?
My reason #1 for no iPhone: No qwerty. |
Re: Its not Wifi, but GPRS that is consuming most of the battery
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But as it is difficult to appreciate, I really feel like doing a video comparing both mobiles. Not to criticise, since I don't want an iphone, but just to have real data to discuss about. Quote:
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Re: Its not Wifi, but GPRS that is consuming most of the battery
before answering any detail i have to say that if you are trying to use N900 as you are using iPhone then surely iPhone kicks the crap out of N900. Surprised?
Still you are talking about 30 sec and 5 min. Please give us taste cases so we can measure and compare. I do not care about your felling. Without saying it is of course true that iPhone handles some stuff faster than N900 and N900 is faster on some stuff. And for sake of your health if you find that iPhone is faster on things what you mostly do then please use it. |
Re: Its not Wifi, but GPRS that is consuming most of the battery
You know Petrelli, if you complain here you will be disqualified as being a troll.
Moreover, if you give credit at iphone or Apple in any way, you will be suggested to buy one for yourself (funny that you already own it thus they can't do that tis time :D) It is very sad that there is people here giving such poor excuses to such simple, justifiable claims. Now THIS is what keeps Nokia doing wrong things and losing the market. No matter what mistakes they make, they come to fan sites and they will find uber trolls defending their design, ui, hardware choices. If 8 hours in 2G mode is a normal, acceptable scenario... Seems we're back at old 5110 days (and this one lasted longer, btw) This only reinforces them in their poor strategy. PS: A proud, always-mains-connected-N900 user. |
Re: Its not Wifi, but GPRS that is consuming most of the battery
Now back on topic, that is, giving help if possible..
Petrelli, I have found that using Nokia Messaging instead of configuring separate email accounts has increased my battery life. If you are using email on your N900, consider this possibility and give us your feedback.. |
Re: Its not Wifi, but GPRS that is consuming most of the battery
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If you are not referring to me then excuse me but if you are then i hope that you learn to really read. Not just words. Look bugzilla. There is also people stating that A and B are slow and guess what devels ask them to do? Yes! Measure and compare! Quote:
So that we can get some kind of clear facts. We can start posting batterygraph images and explaining in detail what happened during day. It should give us at least some kind of measurements. |
Re: Its not Wifi, but GPRS that is consuming most of the battery
With my operator, a single packet every 5 seconds on 3g consumes as much power as downloading over 3g constantly. My SIP provider sends a keep-alive packet every 10 seconds or so. If I had two accounts the battery would only last about 4 hours on 3g...
On 2g with my operator, the power consumption for a similar load gives about 24 hours battery life. With no traffic, being connected to 2g or 3g has such a marginal effect on battery consumption I haven't been able to measure it. |
Re: Its not Wifi, but GPRS that is consuming most of the battery
also from what i think..
if you keep your phone in 2g mode instead of 3g mode and expect to use the same apps like gtalk or skype or wtever.. you are still transferring the same amount of data.. but now because you have decreased the available bandwidth to your phone.. now your phone in 2g mode will take longer time to download emal.. facebook contaccts gtalk an all.. basically your phone will run longer at high cpu i use 2g when i only need my phone for being in touch because battery is very less.. not for surfing cos i hate waiting that long.. so u being in 2g and using same data transfer will decrease battery life.. thts wt I think |
Re: Its not Wifi, but GPRS that is consuming most of the battery
Except that 2g is time divided access and 3g code divided access. The 2g radio switches on and off dozens of times per second, taking its turn to transmit among all the other phones. 3g radio transmits at the same time on the same frequency as other phones but with different code, regulating power quickly and carefully so that no device overpowers another. The minimum time a transmitter needs to take part and keep its transmitter on can be very long and measured in seconds.
So 2g would be more optimized for short but frequent data. 3g optimized for lots of high speed data. Someone with more in-depth knowledge than me welcome to explain it with correct terminology.. |
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