Cell Phone Batteries

Have the company really improved the duration of autonomous work of their electronic devices?

One of the main innovations in Galaxy S7 and S7 Edge is their batteries which capacity is more on 18% and 40% respectively in comparison with their predecessors. The last year’s devices were highly promoted by all the points except the battery’s work. Let’s see, whether Samsung could solve this problem this year.

Every test was made thrice and the result was the average rate of these tests. In these tests “the youngest” model took part – Exynos (model number SM-G930F) and also its variant on the base of Snapdragon (model number SM-G930V) of Verizon Wireless. The last one is distributed with pre-installed apps of its operator which can slightly cause the waste of charge. Every device was tested with the identical brightness of the display and in the same conditions.

Table of Content

1 Wi-Fi
2 Video playback
3 Stand by time
4 Note
5 Conclusion

Wi-Fi

Each smartphone was fully charged and discharged till 0% while testing. After that, they were charged at 2-10% in order to see the registered time of gadget’s functioning.
Exynos Galaxy S7 was a little bit better in this competition and its average time was 6 hours 48 minutes, the Snapdragon version was working 6 hours 30 minutes. It is an interesting fact that the nearest result showed Nexus 6P. Surprisingly, Galaxy Note 5 was a lot better than the new flagman and showed the result of 9 hours 32 minutes.

Video playback

All the devices played the same video again and again till they were fully discharged. Each gadget was in a flight mode for preventing the attempts to synchronize or connect with something.

Both variants of the devices passed this test at their best. The Snapdragon version beat the Galaxy Note 5 and Nexus 6P with the result of 11 hours 52 minutes. The Exynos S7 had really the best result of 15 hours and 11 minutes.

Stand by time

The last was the verification while working in a standby mode. Each smartphone was fully charged and the Wi-Fi was functioning with the standard set of apps and notifications (11 of all of them). Exactly after 24 hours of work the last percentage of charge was measured which was used in calculation the potential time of autonomous work.

Galaxy Note 5 showed the worst result of all. This might have been connected with the absence of Doze Mode function in the Lollipop version of the operating system. Each modification of Galaxy S7 exceeded the result of Nexus 6 model despite of the fact that this gadget has a more powerful battery of 3400 mAh.

The Snapdragon version might have worked 9 days 10 hours and the Exynos model – 10 days 2 hours.

Note

Such tests do not reveal the conditions of everyday usage which is characterized with constant switching between different wires and working of the great diversity of apps which cause a kind of “recent” discharging of the device.
With the active usage of smartphone, the electronic devices can work approximately 4-6 hours if they are charged at 100%. The minimum of working hours is 2 hours 30 minutes.

Conclusion

All in all, this set of tests showed that the manufacturing company has really increased the working hours of new gadgets in comparison with Galaxy Note 5 in each modification except the Wi-Fi connection. A non-trivial role the innovative function Doze Mode in Android Marshmallow system played, thanks to Google developers. Actually, the Exynos version holds the charge better than Snapdragon in 10-20%.