- 05-08-2013, 03:24 AM #1
I plan to give WP another serious thought again.
But there are countless threads all over the net complaining about 820's battery. Now my wife has got the 720 and its a fantastic device. In fact the reason I plan to ditch Android and jump the WP wagon is the fluidity of 720. But my concern is the 512 RAM of the 720 vs the bad battery of the 820. Which is lesser of the two evil?
Can the battery issue and the heating issue be resolved with a firmware update? Or is it inherent and a part of the hardware?
If its too much of a compromise I will pick the 820. But then again...
Lemme know what u guys think...
Sent from my Π Σ Χ U S 4.
- 05-08-2013, 04:37 AM #2
As far as I'm aware there isn't an inherent fault with the 820 and its battery. If you Google for any phone + battery issues you will get lots of hits. I've read a few threads where people are complaining about battery life on the Galaxy S 3 but mine lasts 2 to 3 days easily. Also, quite a few people have complained about the 920 too but once again mine will last a good two days on a single charge.
- 05-08-2013, 05:12 AM #4
There isn't a problem with the 820 battery, as far as I'm concerned.
Since you can replace the battery of the 820, you should wait for a higher-capacity Nokia battery to come along.
Right now, the battery is a BP-5T. Considering my experiences with Nokia batteries, wait for a higher capacity battery in the BP-xT series. 6- or above.
(An example of this is the Lumia 620 battery, the BL-4J (1300 mAh as of current revision). You can replace it with a battery you can find in phones with half the price that is the BL-5J (1430 mAh as of current revision, only a wee bit thicker))
Or, wait for a new version of the BP-5T to appear. Again, Nokia likes reintroducing batteries with higher capacity.
See Nokia no longer bothering with holograms on most batteries? if you want to see more of the latter at work.
EDIT: Whoa. That's a misleading headline (for what I'm using it for). Hang on, there's a photo in there.
- 05-09-2013, 05:27 AM #6
- 05-09-2013, 05:30 AM #7
- 05-09-2013, 09:24 AM #8
-Web browsing (white display on AMOLED kills battery quickly)
Stanby-wise, it's amazing. Just like all other Nokia phones.
Besides, you can replace the battery. Hope for the best.
(P.S. I just found out that a 800 mAh battery from one of my Nokia phones works with my 620. Go figure.)I'm also over at the Moriya Shrine! Go there if you're also a fan of Touhou. After all, it is a small community, like WP, right?
05-09-2013, 09:41 AM #9
- 71 Posts
Hi there! I've seen you on my 720 vs 820 thread, and so you were facing the same problem as well! Personally I'd recommend the 720 over the 820, but that's biased because I've already set my heart on it and I am a different user than you. I suggest that since you have the privilege of having a full fledged 720 at your disposal (your wife's), why not just ask her to let you try it out for a few days? Use it like you normally would, and if you find any problems that really irk you and you can't stand, get the 820. This is especially if you play lots of games. But for me the 720 is actually made perfectly to be what it is now, whereas the 820 is more of a cheaper alternative to 920.
- 05-09-2013, 09:50 AM #10
- 05-09-2013, 10:22 AM #11
Let me see. The heating is also another tissue I worry about. I don't really play games (I think its very kiddish LOL)..
But surfing I do...and a lot..
Sent from my Π Σ Χ U S 4.
- 05-09-2013, 03:08 PM #12
I don't know what you've been reading where you've invented these "issues".
Charge your phone every night. Battery will not be an issue.
There is no heat issue. My 820 has never even felt the slightest bit warm.
Sent from my RM-824_nam_att_101 using Board Express
- 05-09-2013, 03:52 PM #13
A few pointers:
The heat issue is precisely because of the higher clocked CPU on the 820. Lower clock on the 720 = less heat (and less battery drainage). That is a hardware thing. No software update will change that.
The 820 and 720 are equally future proof. Both will hit end of life at the same time. Barely a developer will target higher end Lumia's (820's and 920's) exclusively. With the exception of a few games, nobody will be developing anything that doesn't run on the 720. Not now. Not in the future. When the next round of WP hardware hits the shelves, all current Lumia's will be in the same boat.
Based on the description of what you do (particularly that you don't play games), I see little reason to prefer the 820 over the 720.
The international maps license that comes with the 820 might be one reason, or the AMOLED screen should you prefer that over the 720's IPS LCD. The higher clock on the 820's CPU is barely noticeable in terms of performance, particularly because the heavy lifting is done by the GPU.
Beyond those things, the 720 is superior in every way, including both front and back camera, video capture and the GPU (Adreno 305 vs. the Adreno 255 in the 820).
Last edited by a5cent; 05-10-2013 at 01:40 AM. Reason: Spelling
- 05-09-2013, 06:40 PM #14
BTW, assuming the always-on clock comes to the Lumia line via PR 2.0, you'll love that AMOLED.
Oh, and I've never seen the battery connector things on the 820.
But, seeing that the largest batteries Nokia has officially made is 2000 mAh, good luck if you're choosing the 820.
Since the 720 does have a microSD slot, I'd guess the 720 is a better option. In fact, for what you're using a phone for, you could use a 520 or 620.
(Or, buy both and have one spare battery!)I'm also over at the Moriya Shrine! Go there if you're also a fan of Touhou. After all, it is a small community, like WP, right?
- 05-10-2013, 03:44 AM #15
- 05-10-2013, 03:48 AM #16
Thanks for your reply... I know what you are saying. Though I agree with everything, there is just one point I may contest against, the last one, The Adreno 225 vs 305. I read on some popular forums the 225 is stronger than the 305...Can we discuss this in length a little...? I am open to a good logical argument on this one...I did plenty of research on this one myself.
- 05-10-2013, 04:33 AM #18
Adreno 305 graphics are equal to 3 year old iPhone 4 and Galaxy S2 whereas Adreno 225 is comparable to iPhone 4S , Galaxy S3 etc.
To make this little clear :
Every adreno has series like 200s , 300s etc.
starting numbers like 305 are meant for low end , 320 is meant for higher end
205 is inferior to 220 and 225.
You must pick last two digits for seeing at potential.
Last edited by Sanjay Chandra; 05-10-2013 at 04:52 AM.
05-10-2013, 09:16 AM #20
- 39 Posts
Yes, but these numbers still tell very little. One wouldn't assume the 320 would be eating the 225 for breakfast, but it does. It is simply embedded with the faster chipsets only (S4 pro) which also means that it is likely clocked higher.
Mali vs SGX vs Adreno, the best GPU on smartphones and tablets shows that the 305 is more or less equal in performance to the 225 in most tests. :)
- 05-10-2013, 10:14 AM #21
Both test candidates sport the same display resolution and the same version of Android. As you can see, the Adreno 305 came out slightly ahead in most tests. Admittedly the difference isn't huge, but according to Qualcomm the Adreno 305 also gets by on less power. Whenever you're confronted with a mobile GPU that offers better performance while using less power, there is nothing left to think about... you can't go wrong with that combination. Professional review sites confirm that result, like this one from gsmarena (see GLBenchmark 2.5 Egypt).
Unfortunately, I'm not aware of a benchmark comparing these two GPUs under WP8. Theoretically, things may be completely different for WP8, but it is far more likely that results will be very similar if not identical.
As far as Qualcomm is concerned, the Adreno 305 replaces the Adreno 225 completely. Going forward, any new SoC that is intended to reach the GPU performance levels of the Adreno 225 will ship with the Adreno 305 instead.
I'm not sure what it is you read on other forums, but IMHO numbers speak louder than words.
- 05-10-2013, 10:51 AM #23
Based on the benchmarking results the performance difference between both GPUs is negligible however. I agree that the probability of anyone noticing a difference is essentially zero. When it comes to power draw and battery life however, assuming all else is equal (which in practice does not apply), I suspect we would notice a difference. Unfortunately, I lack the numbers to back that statement up.
- 05-10-2013, 11:00 AM #24
Combination of 1 Ghz CPU coupled with Adreno 305 - MSM8627 or MSM8227
See the combination of 1.5 Ghz Dual Core Krait coupled with Adreno 225 - MSM8960
As we can clearly see how powerful Adreno 225 compared to 305 especially in handling camera MP and Display resolution.
1.2 Ghz Dual Core Krait + Adreno 305 = Replaces 1.5 Ghz Dual Core Krait + Adreno 225
! Ghz Dual Core Krait + Adreno 305 = Weaker , Only Replaces Adreno 205 Devices with slight bumps in performances in GPU but leaps in CPU
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