Keeping the grain of salt (preproduction unit) in mind, it's disappointing to see the poor battery life on a Sony device. Actually they have a reputation for good battery life. I tend to blame the 615 CPU as must of phones equipped with this CPU tend to show or battery life. But then we see the Galaxy A7 with a bigger screen and show exceptional battery life. So... Is it really the CPU? I will follow the updates if this review. I thought it will be my new device by mid of this year. Now I have to reconsider this decision if Sony doesn't improve the phone until release.
Silviu Bogdan, 12 May 2015yeah...i hope this result is so low because it's a preproduction unit...because i really want ... moreI am also rooting for this phone, but I got xperia c3 instead, steller battery life, it's almost impossible to kill the battery in a day of heavy usage LOL, manage to make at least 7 hours screen on time.
plain... boring,... terrible battery life... sony how worst can u go?
So the question remains: when will Sony stop effing up their good sensors with shitty, mediocre software?
snapdragon 615 overheating issues, sony should used a different chip. realy wanted to buy the m4 aqua :(
It is strange that Sony doesn't have best cameras in ali vlast because of their sensors and optics.
I'd get a second hand S5, M8, Z3 etc over this and still have some money left over
sony phones are always bad in camera
LG is really doing great in camera. sony should learn from LG or Samsung on how to make their camera better on software as well.
The camera get a bad review again. Sony should improve their camera. And to think they are the number one supplier of camera sensor.
Until this M4 Aqua review, I really believe that the battery life problem lies in the Snapdragon 615 chipset
The HTC Desire 820 (which alsos use the 615 chipset) has worse battery life than M4 Aqua. That's why many brands choose to use Mediatek chipset, i hope the C4 or Desire 820s out soon so i could compare the battery life and make a conclusion
I changed from Sony to Nokia years ago because my Walkman phone was too quiet. I could hardly hear callers nor the ringtones.
Its very disappointing that the M4 Aqua also is noticeably quiet according to your review.
Sony, some of your customers are old and their hearing is not as good as you young folk.
I will have to wait a little longer and read actual reviews of production models.
Guys don't worry about the battery . its a pre production unit .
remember the pre unit of Samsung S6 also had poor battery results but now it have a good battery results .
So don't worry Sony will surely deliver 2days battery life .
This is THE BEST MID RANGER
anyone knows what audio chip (DAC) is put inside this phone, compare to Z3?
Primark, 12 May 2015relax, it's preproduction, anyways at best I believe it will manage around 70+ hours after the... moreyeah...i hope this result is so low because it's a preproduction unit...because i really want this as my next phone ...hopefully gsmarena will redo the test with a finished product