Would there be a difference in quality streaming Pandora in 3G versus 4G? If there would be no difference then I could save battery drain via 3G. Since Pandora used to work fine on my OG, thought it might not matter.
It just takes longer. Otherwise no.
lilfleck said:
It just takes longer. Otherwise no.
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Longer to start first song only or for each song?
Generally the first song in a well covered area.
Sent from my Galaxy Nexus using Tapatalk
might not be quite that simple. the 4g antenna uses up more power, but won't be actively transferring data as long either. it will also be dependent upon the relative signal strengths. if you have good signal strength on 4g and poor for 3g, you might find that 3g is using more power.
in terms of quality, it probably won't matter unless the 3g speed is slow enough (due to congestion or poor signal strength) to prompt pandora to transcode the music to a smaller bitrate to avoid skipping. i'm not certain that pandora has this feature, but i know other cloud-based music players do that sort of thing and i would expect pandora to do the same. as long as you have a decent 3g connection though, streaming music will be cake without the need to transcode.
rubber soul said:
might not be quite that simple. the 4g antenna uses up more power, but won't be actively transferring data as long either. it will also be dependent upon the relative signal strengths. if you have good signal strength on 4g and poor for 3g, you might find that 3g is using more power.
in terms of quality, it probably won't matter unless the 3g speed is slow enough (due to congestion or poor signal strength) to prompt pandora to transcode the music to a smaller bitrate to avoid skipping. i'm not certain that pandora has this feature, but i know other cloud-based music players do that sort of thing and i would expect pandora to do the same. as long as you have a decent 3g connection though, streaming music will be cake without the need to transcode.
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So, if I'm in an area with good coverage of both 4G and 3G, I would probable save battery with 3G and not suffer quality?
you certainly won't suffer any quality loss if you have good 3g coverage.
whether you save on battery isn't clear to me because there is a tradeoff going on:
4g consumes more battery per second than 3g.
3g is on for more seconds to complete a download.
my suggestion would be to give yourself a real test. queue up a bunch of songs in an area you typically would listen to music and have the app stream the entire playlist. the longer the playlist, the more accurate the test. open the battery status and observe the battery usage rate. repeat this test on 3g and see if there is any difference.
ideally the tests would be performed both starting with roughly the same battery percent (make sure it is less than 90% to start). and they both would have everything gps, wifi, data sync, etc. turned off. if you perform the test, report the results!
3G is plenty to stream music. I've streamed Google Music for long periods of time while on the highway with poor signal. Having a well designed app (in the sense that Google Music prefetches the first few seconds of pending songs to eliminate a pause between tracks) helps, too.
LTE will use less power because it will turn off quicker. Being more efficient is the whole point of 4G technologies.
Stand-by times are usually worse for each succceeding wireless technology. We won't be able to know that for sure until carriers deploy VoLTE and LTE IMS SMS. Right now, LTE is only used for data. Voice and SMS go over CDMA, so the phone is powering 2 radios at one time. This, combined with the early LTE chipsets, is why the LTE Nexus has such awful battery life compared to the GSM/HSPA model.
Related
I found a odd app thats only out for SGS today. TawkOn . Said to tell you if its safe to use your phone.
http://www.tawkon.com/
Get it free from Market
I personally don't believe in it but Its cool to show off to friends
interesting... Myself I don't believe in this bs lol. How long you usually talk on your phone? 5 min, 30 min, an hour? If there was radiation I would guess it wont affect you very much, there are radiation everywhere, some are stronger, some are lasting longer etc.
I am interested in how it figures out the radiation lol
same though here,
to measure that kind of thing, you'll need a real external sensor to measure radiation which the phone doesn't have anyways
And even if it would be possible to measure it directly with the phone, it wouldnt make any sense. Who needs to make a call, makes the call anyway. For all other paranoic people: dont use a mobile phone, stay away from a microwave oven, don't look directly in tv, etc. could continue here until my battery dies. XD
Sent from my GT-I9000 using XDA App
I think it takes the signal strength you have (dB) and how many cell towers are in your vicinity, that's how formulates the radiation, when you're close to a cell tower the radiation should be much higher than normal, thing is I personally half believe in this, I pitty the people who have on theyr buildings like 10-20 antennas for TV, radio, cellphones ..... they will get many affections and the immune systems is weaker that others, That is a proven fact, plus other problems, it depends on every persons, where his weak points are
I just like it as it's eye candy I'm a sucker for shinny blinking things. I uninstalled this app anyways as I can't see a use for it other then to get people paranoid.
A mobile phone emits less radiation when connection quality is good than when it is poor.
Connection quality is, for example, better outdoors than in a building or areas with connectivity interferences (basement, elevator, car, etc)
Connectivity improves with proximity to a cellular base station
Connectivity can be reduced by phone usage such as antenna orientation (if the phone is held vertically or horizontally), travel speed, etc
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It polls all this, and then determines some value that supposedly represents mobile radiation.
It's not fake, it's just slightly pointless, as you can determine most of this by looking at your reception.
Dunno how this works, but the SGS has a very low SARS rating (radiation level) which is super good
So I recently decided to try out different radios to see what they have to offer. I will post my observations here. For reference I have a G2 on T-Mobile in upstate NY area.
I started with the stock T-Mobile OTA radio, 26.03.02.26 on stock froyo rooted. I had no particular complaints about this combo, though I thought idle power consumption was way too high. I would lose over 35% idling over night on wifi calling.
I flashed CM7 stable and heard that the latest radio was required for full functionality. I tried flashing without updating the radio first, and GPS was non-functional. So I flashed the latest gingerbread test radio, 26.08.04.16 and GPS was working again. Now I am extremely pleased with battery life. Max idle power consumption I have seen so far was 8% overnight on wifi calling. If I charge to full right before going to bed, it still say 100% when I wake up in the morning.
In addition to the increase in battery life, data speeds were much improved. At home, with only two bars of H, I used to get just above 1Mbps down. The new radio easily and consistently hits over 2Mbps in the same location with the same reception.
I do think there are some trade offs with this radio though. I noticed a higher rate of wifi disconnects. Every now and then when I look at my phone, wifi calling has dropped and I have no data. Takes a few seconds to come back. I'm still not entirely sure if this is radio related or if it is my specific wifi environment.
I also noticed my phone bouncing between 3G and H a lot more frequently with the newer radio. In areas where I used to get very solid H, it will now bounce between 3G and H. Connectivity is not affected and I hope this is not bad for battery life. I suspect reception is slightly worse with this radio, maybe the tradeoff for better speeds.
I recently flashed back to the T-Mobile OTA radio to test it with CM7 and I was horrified at the battery drain. I lost 25% in less than 2 hours. Granted, the phone was active for half that time, but even still, that is terrible battery life. Needless to say, I am back to the 26.08.04.16 radio.
What have you noticed about the various radios you have tried so far? Any preferences? Post your experiences.
--MrAnt--
Just got off the phone using 26.08.04.16 and my call quality is extremely clear.
With the stock radio and the stock ROM I had terrible cell coverage in general, I would routinely not have usable cell signal let along data in my house even when my old G1 or two MyTouch 4G devices would work fine.
Specific symptoms would be the phone randomly cycling between 2-3 bars of 3G/HSPA+ and 2-3 bars of EDGE and then no bars of anything, even if it reported 2-3 bars when you went to use it almost invariably you would lose all bars and would be unable to make a call or use data. Could not identify any sort of pattern, it looked like the phone was having a hard time negotiating with one or more cell sites, I'd guess that there are two that have OK but not great coverage in range of my house and the phone could not figure out which one it wanted to connect to.
While still on the stock ROM I loaded radio 26.04.02.17, it did seem to help some but not significantly.'
After I switched to CM7 final there wasn't much if any change to my cell coverage (still sucks) but my GPS was ridiculously unreliable/unstable. I am a Foursquare users and use GPS every day several times a day and my phone would not turn on GPS consistently and would not turn it off consistently when I exited the application. A couple times I could not turn off GPS even if I disabled it in settings and would need to reboot to get GPS to turn off. Sometimes I would have to try several times (by exiting/restarting my GPS enabled application) to get it to turn on and sometimes it would just randomly turn off while in use (had this happen twice while using navigation). I would need to exit the GPS enabled app (exit navigation if I was using it) and then relaunch (sometimes more than once) to get GPS back up and running again)
I tried using the wipe the EFS data fix but that didn't fix my GPS problems
I have since upgraded my radio to 26.08.04.16 which has made my GPS better (but not as reliable as it was before CM7), I think my cell coverage/data is better but honestly the GPS is a much higher visibility problem for me so I haven't been paying as much attention to that.
Interesting, my GPS reception seemed to improve a lot with the new radio and CM7. Used to take well over a minute for a GPS lock, now its around 10-20 seconds.
I also have no cell reception problems, just power consumption complaints.
I just flashed the new test radio that was leaked, 26.8.04.30. I'm hoping this will solve my flaky wifi issues and, if I'm lucky, reduce cell radio power consumption to something more reasonable/manageable. I will update once I have a chance to try it out and see how battery performance is.
So far the wifi appears more stable, and cell bandwidth is about the same as the 26.8.04.16 radio, maybe even a little better.
--MrAnt--
mrant said:
Interesting, my GPS reception seemed to improve a lot with the new radio and CM7. Used to take well over a minute for a GPS lock, now its around 10-20 seconds.
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I have noticed when GPS works it is much faster than stock, GPS locks, when I can get them are lightning fast (usually less than 5 seconds if I'm outdoors in a remotely clear area).
Interesting problem I had yesterday, I would fire up my GPS app (tried both Foursquare and Google Maps) and the GPS icon would activate then turn off after 1 second, usually if I exit my app and relaunch it a few times I'm able to get it working again but yesterday I needed to disable and re-enable GPS to fix the problem. These problems are very strange.
Just tested GPS lock in a location where it used to take forever, so long I never waited for a lock before moving to a window. Sitting on my couch, a good 15 feet from the nearest window, I got a lock in 10s flat. Impressive.
Battery life does not seem to have changed in the latest radio, .30, and things seem more stable and faster. Battery consumption is about 2%/hr on wifi calling, and a little under 4%/hr for cell radio. These are idle consumption rates.
Additionally, my HSPA+ speeds have reached rates I have never seen with my phone before. I just clocked in a hair under 5Mbps down and almost 2Mbps up. I used to see only 1-1.5 down and .25-.5 up.
I am very pleased with the performance and power consumption improvements this radio brings.
--MrAnt--
They were sayn that wifi saves batt up to 50%. Ive always been told the exact oppisite. Wifi kills batt life. Wtf
Sent from my SPH-D710 using xda premium
harley1rocker said:
They were sayn that wifi saves batt up to 50%. Ive always been told the exact oppisite. Wifi kills batt life. Wtf
Sent from my SPH-D710 using xda premium
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Click to collapse
Depends on distance/strength of wifi signal...
It's a good way for them convince you to not use your data connection for a while and slow down the network.
Sent from my Super Galaxy'd SPH-D710
I got an email/text or statement insert saying the exact same thing. Funny thing is ever since that statement I have always made sure to have wifi on when home.
I know it sorta turns off when disconnected but then it scans and picks up wifi networks so I just turn it off when I leave the house.
On my OG Evo I did not notice any change in battery life with wifi on.
Searching for WiFi is what really kills the battery which is why I turn mine off and on manually rather than leaving it on. If I'm in an area with WiFi available and my 3G signal is low, then I'll turn on my WiFi, also when I'm at work or home my WiFi is always on but if I'm out and about then I keep WiFi off rather than have it drain my battery constantly looking for signal.
Technically, I think Wifi takes up less battery than, say 3G when actively used.
Just a guess o-0
MochaCharok said:
Technically, I think Wifi takes up less battery than, say 3G when actively used.
Just a guess o-0
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Click to collapse
I would think this is true, especially if you're sitting close to the router like at home or work rather than pinging off a cell tower however far away.
It goes both way guys. When idle, wifi consumes more battery than an active cellular data connection.
By virtue of simply being more efficient, wifi consumes "less" when actively using it. This is, however, because of the generally increased data speeds: it takes less time to accomplish a task (I.e. downloading a file), thus providing battery savings. In this regards, even 4g consumes less battery, even though it technically takes more juice to run 4g.
The way to really look at it so it becomes clear is say, hypothetically, you had a wifi connection whose internet side connection was very slow. In this regards, wifi doesn't save you any battery, and will probably end up consuming more, simply because its gain in efficiency is now gone.
Of course sprint wants us to get off cell data as much as possible, but in a lot of real world situations, it will save someone battery. Take my typical work day for example:
I wake up at home, drive to work, stay at work all day, then go home and probably stay there. I have good wifi connections both at home and work. Now, if I was the kind of user that didn't auto sync anything, I would probably end up using more battery life than I need to if I left wifi on all day, simply because I'm pumping juice into a radio that isn't being used.
However, I DO use a lot of auto sync functions, which means that my phone is actively using data a lot throughout the day. In this case, the battery drain due to the time in which wifi is left idle is out-weighed by the gain in battery life I get by the times my wifi is now being used instead a cell connection.
In a nutshell, as I said at the beginning, cellular data connection is more efficient at being idle than wifi (provided it's a good connection), and wifi is more efficient at being actively used (again, provided it's a good connection and the internet-side speed is sufficient).
Sent from my SPH-D710 using xda premium
My battery last far longer on wifi than 4g, not even close in my book.
Since I have wi-fi at work and home I can say there is a HUGE difference - especially since at home and work the 3G/4G signals are so weak that the phone burns quite a bit of battery just searching for a signal. Hoping that this will change as NV completes in the area but it might be the frequency that we're on is not too friendly with the newer building materials.
Yes, using wifi will save you more battery life than using your 3g/4g
Pastie13 said:
My battery last far longer on wifi than 4g, not even close in my book.
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4g is a completely different animal than 3g when it comes to battery drain. So far when on 4g your battery life is sucked out of your phone. The email Sprint sends out I would safely say is comparing 3g to wifi.
That same tip is on Sprints website when you log into your account. It is on the right hand side.
As for battery life my findings have been WIFI uses less juice when the signal is good. 3G uses less juice when the throughput is good. So when I am on 3G in an area that has good speeds I can hit near 30 hours of battery.
I can do the same on WIFI when the WIFI signal is good, but if the WIFI signal is on the lower end the throughput slows since the quality has been lowered.
So in essence the better the throughput the better the battery, because when the phone wakes to check on any sync items setup the longer it takes to make that check the longer the CPU is at max and the more battery drain occurs. And I'm not talking signal strength for 3G since you'll get more drain on the battery in lesser areas because the phone is naturally going to have to boost the transmitter power. I'm talking best signal and crappy 3G network throughput. That is where the drain comes from.
I have tested this in my house with my WIFI and my Airave. On WIFI if I go outside my WIFI range is really bad and my battery drains a lot quicker. If I turn off the WIFI and use the Airave, which has a much higher transmitter power, I can get great battery. I have also seen this in over night testing. My WIFI is in the living room which is 5 walls away and the signal is pretty poor. If I leave my WIFI on over night and not charge my phone I loose 50% battery and when trying to use my phone for internet I get super bad throughput since I am on the edge of the signal. But turn off my WIFI and ride on the Airave I only loose 15% over night and the internet is great, but limited to 1.5m since it is 3G. So if you download a 1meg attachment. 3G takes 2 min and WIFI take 4 min then 3G will use less battery. This also goes vis versa. Whoever is maxing the CPU the longest is your battery killer because both are always on and always ready when they are selected.
Hope I didn't go into to much detail, but transmit power is not the big thing here it is throughput quality of the signal. The worst the throughput the more time it takes to transmit and thus more battery as the CPU is maxed till the job is complete.
Hey,
when I use 3G I get about 2H of screen time,
and when I use WiFi I get about 4H (max).
My usage is WhatsApp, Browser etc..
Is it normal that I'm getting half of the time with 3G?
Can it be fixed with another baseband?
Any help?
3G uses more battery since it's also searching for better connection all the time(unless you choose 2G only in mobile network options, then you get better battery but speed is not so fast anymore).
I can confirm that a weak 3G connection gobbles up battery charge very quickly. This is a flaw in the radio firmware or perhaps somewhere else. Of course the phone should switch to 2G automatically when 3G is not used intensively, but uses excessive amounts of electricity, but the designers apparently overlooked this.
Your main option is, as already mentioned, to do the thing manually that your phone fails to do automatically—force 2G only.
If you do that, don't forget to disable the force-2G option again when (a) you need the higher speed and the connection is good enough for that, or (b) if you moved into an area with better reception, like 3 or 4 bars.
Alternatively, leave the settings untouched, i.e. 3G enabled, and keep charging the phone if you are stationary and have electricity nearby. You can charge from a computer, albeit at half speed.
I almost always have 3/4 bars, so I don't think I have a connection problem.
By default, the Adaptive Connectivity option is on to sense and handoff between connections to supposedly improve battery life. That said, I've noticed with the feature on, the Pixel 6 Pro stays on LTE, instead of 5G a lot more often than Samsung devices. I also noticed that Wi-Fi signal would trail off a bit when not actively in use (maybe a low power sleep mode?). I'm testing it with that feature turned off now to see if it makes much difference. Granted, 5G quality varies heavily, so there are times when 4G would be better. What are your experiences with this feature?
Battery life has been outstanding on the Pixel 6 Pro by the way.
It's going to be somewhat subjective people's carrier and location. I'm in Tampa on T-Mobile and pretty much 5G everywhere with and okay amount of 5G UC.
There's lots of discussion that turning off adaptive connectivity would help people's battery life especially in poor 5G reception areas.
I'm wondering if this "adaptive connectivity" setting also sends the network to sleep altogether when the device is idle long enough. I've lately had issues with some smart home app (smartlife/tuya) not executing scheduled tasks while the phone is idle. The app itself reports to check the network, which is always fine when i do (when the device is awake). That got me to check all the power and network related controls and this adaptive connectivity is the only really new control where Google also doesn't give any insight on how it actually works. It would be helpful to get an idea of that. Just there's basically no real information on the net.
Oh and besides, i feel the battery life of the Pixel 6 pro is pretty lame actually. I guess that also pretty much depends on network availability - i work in a rural area where the network isn't great (Mobile and WiFi both not great). As long as the device is off, battery drops at an acceptable, yet not great rate. But when i activate the phone, already the screen burns down the battery so fast it's annoying me (I've already set it to 60Hz permanently). Videos, navigating, even music - all that really chews away capacity really fast. That's one reason I'd rather keep Adaptive Connectivity on. I don't want even more drain.
Sneakyghost said:
I'm wondering if this "adaptive connectivity" setting also sends the network to sleep altogether when the device is idle long enough. I've lately had issues with some smart home app (smartlife/tuya) not executing scheduled tasks while the phone is idle. The app itself reports to check the network, which is always fine when i do (when the device is awake). That got me to check all the power and network related controls and this adaptive connectivity is the only really new control where Google also doesn't give any insight on how it actually works. It would be helpful to get an idea of that. Just there's basically no real information on the net.
Oh and besides, i feel the battery life of the Pixel 6 pro is pretty lame actually. I guess that also pretty much depends on network availability - i work in a rural area where the network isn't great (Mobile and WiFi both not great). As long as the device is off, battery drops at an acceptable, yet not great rate. But when i activate the phone, already the screen burns down the battery so fast it's annoying me (I've already set it to 60Hz permanently). Videos, navigating, even music - all that really chews away capacity really fast. That's one reason I'd rather keep Adaptive Connectivity on. I don't want even more drain.
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My 6 pro lasts me pretty much the entire day with heavy usage. Before I charge it which is at around 9ish, I still have 17% left.
When I had it on I had lots of issues with the handoff from 5g/LTE and vice versa. Been turned off for the last 3 weeks and I just use LTE as preferred network with no issues. I do some gig work on the side and I can't be caught in the No Data limbo cuz the phone doesn't know what to do.
this is irrelevant but im comparing my wifi signal to my s21 ultra and it is pretty much the same. Same goes with my network speed
I played with adaptive connectivity and power and network settings a little more and got my SmartLife/Tuya to execute in background. It wasn't killed by adaptive connectivity, that does not seem to interfere with apps in this way at least. Seems to really rather deal with better handoffs between networks and not much more.