Smartphone battery life rating

How is the preparation for the test going?

For testing, we recreate the most equal conditions for all smartphones. To begin with, we set the display backlight to the same brightness level (100 cd/m2). For this we use the RADEX LUPIN light meter. Turn off auto brightness. All in order to keep the error at the minimum level.

We also pre-install Antutu, 3DMark, YouTube, VLC Player, Simple Voice Recorder (if not preinstalled), PUBG and Word of Tanks Blitz. We enter the accounts in advance and load all the resources. Install the latest firmware and application updates. On all smartphones, we set the recording quality from cameras (both main and front) to FullHD 30 fps. We throw the same movie into the Movies folder, where both light scenes and dark ones are enough. We take out SIM-cards, turn off Bluetooth, GPS and NFC modules. And the very last stage: we charge smartphones by 100% and unload all applications from memory.

How do we test?

It is known that modern mobile processors have bundles of energy-efficient and powerful cores that are activated automatically depending on the need. Thus, it would be dishonest to simply turn on movie playback on all smartphones (on repeat) and wait for which device turns off first, because such a test only uses energy-efficient cores and does not touch powerful ones. If, however, the test is carried out only in games, then on the contrary, only powerful cores will work, and the energy efficiency of weak cores will not be disclosed.

For our testing, we tried to select tasks that will help any smartphone to fully demonstrate: use both energy-efficient and powerful cores, as well as check the gluttony of the video accelerator, system optimization, display power consumption, load with the WiFi module on and off, etc. .d. That is why testing is carried out in 8 stages.

If you are interested in how a smartphone behaves in a particular use case, you can see its discharge dynamics at each individual stage of testing.

Testing stages

Stage one: recording video on the front camera.

Duration: 30 minutes.

As mentioned earlier, on all smartphones we set the recording quality to FullHD 30 fps.

Stage two: running in synthetic tests AnTuTu and 3D Mark.

The duration depends on the power of the device.

Stage three: playing PUBG.

Duration: 1 hour.

After the end of the battle, we immediately enter the next battle in order to maintain an active gameplay throughout the entire testing period.

Stage four: recording video on the main camera.

Duration: 30 minutes.

Recording quality on all smartphones FullHD 30 fps.

Stage five: watching a YouTube video.

Duration: 1 hour.

To do this, we always use wildlife footage at native 4k resolution, but select FullHD quality in the playback settings.

Stage six: sound recording on a voice recorder.

Duration: 15 minutes.

Often for expensive smartphones, this is an opportunity to get a small advantage by using energy-efficient cores and an AMOLED display in conjunction with a dark recorder application interface. If the manufacturer did not bother to adapt the design of standard applications to the AMOLED display of their smartphone, such a device deservedly does not receive any advantage at this stage.

Stage seven: watching video offline.

Duration: 1 hour.

Playing the movie "Pulp Fiction" from the memory of a smartphone using the VLC Player application with standard settings.

Stage eight: playing World of Tanks Blitz.

Duration: until complete shutdown.

After the end of the battle, we immediately enter the next battle in order to maintain an active gameplay throughout the entire testing period. This is the last stage of testing, which has no time limit and is carried out until the smartphones turn off.

Clarifications

When launching games, we do not include built-in accelerators, game modes, optimizers, etc. Also, throughout the entire testing, we do not turn on the power consumption mode and other functions that can unpredictably distort the final result of the test.

The test results are current on the day of the test and may vary slightly after further firmware updates.

update:
As of 11/12/2021, Genshin Impact is used as the test game.

The character stands on the highest tower in the city of Mondstadt.