Project Volta

A number of flagship smartphones already received the update from Android 4.4 KitKat to 5.0 Lollipop. We are talking about such device, which enjoy massive popularity and even the love of users. It is widely known that the new operating system, Google is able to provide improved energy efficiency of the device, which operates under its control. But this is only a theory. Much more interesting to know how energy efficiency works in practice. The extent to which it increased the time between recharging devices such as Samsung Galaxy S5, LG G3, HTC One (M8) and Nexus 5.

Android

The results of the comparative tests were posted a blog GSMArena. Tested Samsung Galaxy S5 (version based on Snapdragon processor 801, because sometimes Samsung equips the same model of its smartphone different processors), LG G3 (version with 2 gigs of RAM and a 16-gigabyte drive), HTC One (M8) and gradually becoming history Nexus 5. All four phone recently received an upgrade to Lollipop. But did they have to work longer between recharging? Or all remains as before, and maybe all phones now have to charge more?

Project Volta – Lollipop present in the set of energy efficiency. Its first component – JobScheduler, organizing background tasks from different applications and run them simultaneously. This means that, for example, tasks that require an Internet connection will work at the same time and each individually would not wake up the modem.

Applications that require Wi-Fi or the charger, will access resources only when this is possible. Developers can also specify the interval instead of a precise time, and it will allow applications to be grouped together to access the hardware device and not bother him individually.

Android 5.0 also has a built-in operating system itself battery-saving mode Battery Saver. Many phones before had such a regime, but they were not part of the platform, as they realized the device manufacturers.

This is a brief theory Project Volta. But the extent to which these funds were practically useful, can show only testing.

Sleep

In standby mode, while the Samsung Galaxy S5 has increased significantly (at 11:00). HTC One (M8) with no load now stands 6 hours longer. But LG G3 and Nexus 5 based Lollipop steel hold a charge even worse than before.

– Samsung Galaxy S5 (Lollipop) – 83 hours;

– Samsung Galaxy S5 (KitKat ) -72 hours;

– Nexus 5 (Lollipop) – 38 hours;

– Nexus 5 (KitKat) – 40 hours;

– LG G3 ( Lollipop) – 63 hours;

– LG G3 (KitKat) – 69 hours;

– HTC One (M8) (Lollipop) – 77 hours;

– HTC One (M8) (KitKat) – 71 hours.

telephone communication

Galaxy S5 and here shows a significant improvement, allowing you to talk on the phone for 6 hours longer. Apparently, Lollipop for this phone prevents use of energy applications, which are currently not needed.

And HTC One (M8) and Nexus 5 in the telephone communication even lost 6 hours each. LG G3 indicator has not improved, but not much deteriorated.

– Samsung Galaxy S5 (Lollipop) – 27 hours 37 minutes;

– Samsung Galaxy S5 (KitKat) – 21 hours 20 minutes;

– Nexus 5 (Lollipop) – 10:00 01 minutes;

– Nexus 5 (KitKat) – 16 hours and 40 minutes;

– LG G3 (Lollipop) – 25 hours 38 minutes;

– LG G3 (KitKat) – 25 hours 54 minutes;

– HTC One (M8) (Lollipop) – 14 hours 15 minutes;

– HTC One (M8) (KitKat) – 20 hours 01 minutes.

Using Web Browser

Web Browser – sufficiently intensive application that keeps the screen on and the chipset is continuously rendering web pages. All this leaves little room for optimization. Therefore, Lollipop failed to achieve any significant results in this respect. The exception was the HTC One (M8), providing its user is 3 hours ahead of time web browsing to the point where it’s time to put the phone on charge.

– Samsung Galaxy S5 (Lollipop) – 9:00 39 minutes ;

– Samsung Galaxy S5 (KitKat) – 9:00 36 minutes;

– Nexus 5 (Lollipop) – 4 hours 45 minutes;

– Nexus 5 (KitKat) – 4:00 46 minutes;

– LG G3 (Lollipop) – 6:00 29 minutes;

– LG G3 (KitKat) – 6:00 40 minutes;

– HTC One (M8) (Lollipop) – 12:00 29 minutes;

– HTC One (M8) (KitKat) – 9:00 06 minutes.

View video

The video player is less intense, since most of the work performed by the decoder of the image signal. Video playback time on a Galaxy S5 is almost the same and is not strongly dependent on the operating system running on the device (5.0 Lollipop or 4.4 KitKat). LG G3, HTC One (M8) and Nexus 5 based Lollipop even lost about an hour of video playback time.

– HTC One (M8) (Lollipop) – 10:00 11 minutes;

– HTC One (M8) (KitKat) – 11:00 14 minutes;

– LG G3 (Lollipop) – 8 hours 30 minutes;

– LG G3 (KitKat) – 9:00 57 minutes;

– Nexus 5 (Lollipop) – 5:00 01 minutes;

– Nexus 5 (KitKat) – 6:00 06 minutes;

– Samsung Galaxy S5 (Lollipop) – 11:00 15 minutes;

– Samsung Galaxy S5 (KitKat) – 11:00 05 minutes.

Conclusion

After upgrading to 4.4 KitKat to 5.0 Lollipop battery gave different results on different devices. Samsung Galaxy S5 has become a much longer work and have an active call, and in sleep mode.

HTC One (M8) with Lollipop provides extended Web browsing, but it comes at a price – 6 hours reduced the time call. And the ability to watch videos on an hour less is also not happy.

Battery LG G3 update did not help, but not much hurt. Significantly for users of this smartphone has decreased only while watching the video.

Nexus 5 is running the latest operating system lost 6:00 telephone communication and hours video playback.

Android

You may have a slightly different impression of Energy Lollipop? Why energy saving tools Project Volta has not brought the desired result? Which of the discussed smartphone you would call the most energy efficient?

Improved whether Lollipop battery Galaxy S5, LG G3, One (M8 ) and Nexus 5?
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