AnonD-130551, 17 May 2014Sorry, this is wrong. You're just spouting anti-embedded battery propaganda. The rate of capac... moreHigh temp does also degrade batteries, thats right, but its for the same reason, namely the expansion that happens between 70 and 90 degrees C and the grid cracks this produces. In extreme cases the battery expands so much that the safety valve blows, worst case is explosion/fire.
Still, modern high energy density li-ion/po batteries degrade about 20% with 300 full recharge cycles. It is a long known well established fact that ~30% is lost after 500 cycles, while some li-po batteries could take up to 800 (depending on energy density here as well) like for example HTC was bragging with the One M7. Thats common and quite basic knowledge.
By the way, i prefer non-removable batteries, using removablebatteries and swapping when empty damages the batteries too much since one then tends to fully drain the battery before swapping it. To make the battery keep its capacity for as long as possible one should use power bank and give it a small top up when it goes below 40%. This is in line with advices by the worlds leading authority in lithium batteries, the Norwegian professor Valoen.
Nabeel, 17 May 2014I'd like to hear from the people who have and are actually using the Z2 phone? I am deciding o... moreThe speakers on this phone are second only to the M8 otherwise they are better then all other phones. The phone earpiece is loud and I only have the phone set to 6-7 (out of 10)for phone calls as I find 10 being too loud.
with regards to battery life I am easily getting 2 days (meaning 36 hours), this gives me 4 hrs screen use and about 2 hrs music playback with 20-30 mins calls, it takes me back to the days of the old nokia's when charging the phone only happened a few times a week and compared to my old phone, xperia s, which lasted 8-10 hrs this is an amazing upgrade
SDKforLumia, 17 May 2014thanks brother, but I have used Samsung mobiles, Nokia and and Huawei, all on the same network... moreGuess you cannot interpret the test results then, let me help: the talk volume is equal to S5 for ex., the ringer is louder than S5, music is 2.5 db quieter than S5 which is about 3% lower
All in all it has volume quality on par with Htc one, didnt see M8 in that quick look but hey...that sound for a waterproof device is above good
Nabeel, 17 May 2014I'd like to hear from the people who have and are actually using the Z2 phone? I am deciding o... moreOhhh man, just search xperia z2 sound on youtube, or google some other Z2 review. In the end, you csn always try it out in the shop before buying. don t believe a word these spammers say...their intention is to spam after all.
AnonD-175677, 17 May 2014sony "omnibalance design" is not ergonomic. that bulky rectangle "flat &... moreThe G3 is hideous. It doesn't matter how ergonomic the phone is if it looks like trash. All these "ergonomic" phones--G2/G3, S5, M8--all look like trash. Give me the beautiful Xperia Z2 any day of the week. Somehow, I'll figure out how to hold onto a rectangle.
AnonD-209094, 17 May 2014Phone batteries degrade very fast, about 20x faster, compared to li-ion batteries used in elec... moreSorry, this is wrong. You're just spouting anti-embedded battery propaganda. The rate of capacity degradation is most strongly dependent on TEMPERATURE. If one were to use the phone in a normal fashion, but never let the battery go above 80 degrees, modern batteries would last close to 1000 charge cycles before dropping below 80%. BUT, if the battery is constantly exposed to high temperatures, the capacity can drop off very quickly, after only a few months.
worya , 17 May 2014Hey, voice quality really depends on where you live I think. Here in the UK the quality on thi... morethanks brother, but I have used Samsung mobiles, Nokia and and Huawei, all on the same network before and after that Sony K-850 and all were exceptionally good. Even a friend of mine, who is a huge Sony fan, and lives in UAE, confessed that he also faced ear piece volume problems on his Xperia Z. So in the end, a phone as feature rich as Xperia Z2, if cannot perform well in basic telephony, thensorry to tell u my brother, its a fail for me. A BIG one.!
AnonD-209094, 17 May 2014Phone batteries degrade very fast, about 20x faster, compared to li-ion batteries used in elec... moreBy the way, this does not mean that you should avoid charging often, the worst for the battery is to be full or empty, always charge when the battery reaches 40% and avoid full charge if you can. A battery that stays mostly between 40 and 60% can last thousands of recharge cycles without noteworthy degradation.
Primark, 17 May 2014I think i have to rephrase myself, batteries do degrade, but not significantly even after two ... morePhone batteries degrade very fast, about 20x faster, compared to li-ion batteries used in electric cars, already after 300 days the capacity will be down by 20% if you charge daily. The thing is that the users does not notice since the degradation happens gradually, at average only 1% per 15 days.
In addition comes the degradation from ions sticking to the substrate surface, this happens regardless of charging or use and it is why stores have to throw away old stock of unsold li-ion/li-po batteries after a few years.
In contrast a li-ion car battery will last 10 years and 6000 recharge cycles, but they are not useable in phones since they have only about half the energy density, the Z2 would have only 1600mah in that case, and obviously that is why phone manufacturers sacrifices life span to get a higher capacity, which also is why one run into problems with phones like Xperia Z1 which need to be charged twice a day, already after a year the capacity is nearly cut in half, and you have to charge 4 times a day.
I'd like to hear from the people who have and are actually using the Z2 phone? I am deciding on getting either M8 since I have used M7(which was an excellent phone apart from it having a lower batter, camera for what it's worth was decent enough for a 4mp sensor although I was waiting for an 8mp with u-pixels which didn't happen this year and would have made Htc one a perfect phone) and Z2.
I was leaning towards z2 but gsmarena says that the sound (both call and audio) are not good, I would like a user to elaborate on that?
And please not bullshit fanboyism or biasness.
Should I go for HTC One (only con is the camera which is decent but I want a better pixel rate this time around since I photograph often enough and a smaller battery 2600mah which I don't know if i'd dig) and Z2 (with only con of sound and audio quality apparently as per gsmarena etc)?
Would have gone for the HTC one in a heartbeat if it had a better pixel sensor? Oh well I might as well wait for the HTC one 3...
AnonD-264633, 17 May 2014Hi everyone I'm choosing between z1 and z2 (upgrade from Xperia L) Not a heavy user, just ... moreIf you have money, go for Z2. A lot of improvement from Z1. Z2 use new technology display and no washed out screen like Z1. Z2 camera now has great improvement from Z1. Z2 battery life is like 3X battery than Z1 as you can see in this review. Z2 has 4K UHD (but got overheating issues, well it is 4K). In term of performance and daily usage, both phone do a great job but I seriously recommend you Z2 if you have the money. Thanks for read and sorry for my bad english.
AnonD-255654, 17 May 2014Now you are just lyingI think i have to rephrase myself, batteries do degrade, but not significantly even after two years, guess it was a bit off of me to say no degradation sorry LOL.
AnonD-255654, 17 May 2014Now you are just lyingWhat makes you think i'm lying? Original batteries from the top brands, sony samsung, nokia, apple, lg, etc, have excellent battery life cycles they don't degrade easily specially if your a standard phone user.
Can't believe that sammy and htc bring such disgrace of a "flagship"phone.:-/
SDKforLumia, 17 May 2014just tell me, has Sony resolved their long pending problem of low ear piece volume during call... moreHey, voice quality really depends on where you live I think. Here in the UK the quality on this phone is very good and the volume is loud. I use around 6 or 7 out of the maximum 10 setting for volume.
And to the guy as who was asking between z1 and z2 definitely go for the z2 the small improvements make a big difference l, expecially like the display quality
Oh yes I did:
Looks...arguable, cerainly not factual
( Z2 best looking in my opinion, those barely noticable front speakers are a design masterpiece, and multicolor notification light and dedicated camera button are really practical)
UI ...arguable, cerainly not factual
(Sense has less bloat but is uglier in my opinion, touch has much more bloat and is just too much in-your-face, but that is just my opinion).... but 3gig ram for better UI performance is factual.