Throughout my time using the device I've tried to keep the
screen at full brightness as much as possible, just to make the most of the screen.
Running our battery life test that plays a HD video for 90
minutes at full brightness, I found that a full battery diminished only by 22 %.
This involves playing a 90 - minute video, with the
screen at full brightness and enabling all the connectivity options, and seeing how much battery is left at the end.
It's a very bright screen, too, although put it right next to the Nexus 7 and it's a fraction
dimmer at full brightness and the whites aren't quite a dazzling.
On our battery test, which streams video over Wi -
Fi at full brightness, the Tab 2's 7,000 mAh battery lasted for an impressive 7 hours and 21 minutes.
Watching a 90 - minute video in Full HD with the
phone at full brightness, the battery went from 100 % to just 87 %, which means this phone is ready for back to back movies.
Even the majorly flawed and completely unscientific study that everyone basis this theory on showed blue light only delayed going to sleep by 5 minutes when using an
iPad at full brightness before bedtime.
When we ran the battery lab test we put all our phones through (a Full HD video
looped at full brightness for 90 minutes) it dropped 28 %, which is one of the poorer results we've seen.
Two loops with the same dynamic aesthetics run in parallel in the OLED rear lights: The light runs in a circle, initially dimmed and
then at full brightness.
Under these conditions the iPad screen
at full brightness levels using iBooks or the Kindle application was completely unreadable and the screen surface acted like a mirror.
Today, they posted a video showing off the Nintendo Switch's full battery life running The Legend of Zelda: Breath of the
Wild at full brightness, with Wifi on and sound on the maximum volume.
Unfortunately, most selfie takers won't hold a pose for that long (especially as the screen can be quite
blinding at full brightness), and especially not when taking a group selfie, resulting in selfies that have motion blur.
Running the Gear
Live at full brightness destroys the battery life, and running at anything less than full brightness means it's unusable outdoors in the day time.
On one particular instance, I watched a two and a half hour long movie (stored locally), and it lost just around 20 per cent of battery with
display at full brightness.
In our battery tests involving continuous HD video
playback at full brightness with WiFi connected, the Huawei Mate 10 Pro lost just 9 % of battery after 90 minutes, ranking it above any other flagship smartphone currently available (Galaxy S8 Plus lost 11 %, LG V30 13 %, Galaxy S8 lost 23 %, iPhone 8 Plus 23 %).
We ran our TechRadar battery test on the Z2 Play, where we play a 90 - minute Full HD
clip at full brightness to see by how much this depletes the battery.
When trying to use the HTC One
mini at full brightness in direct sunlight, aside from the small portion of the display that is reflecting the sun, the rest of the panel is quite readable.
The first: disable auto - brightness and dim the screen brightness as appropriate rather than blaring out
at full brightness all the time.
When I played a 90 minute test video test on the
Holly at full brightness, the battery dropped from 100 % to 72 % — about average for this level of handset.
To see if the accuracy of any of these displays would shift if you're out in the
sun at full brightness or having a read before bed with the brightness dimmed, we redid the color test at each phone's 10, 50 and 100 brightness levels.
Like most tablets and smartphones, the Springboard didn't have any real success under the glare of the sun,
even at full brightness.
I will say, though, that the G3 looks noticeably
dimmer at full brightness than the rest, and that the Note 4 exhibited smooth color gradients and strong contrast.
In terms of the phone's life, its 2110 mAh battery gave us four hours backup during our video playback test on Wi -
Fi at full brightness.
The test involved subjecting all three smartphone models (which feature OLED displays, which are notably vulnerable to burn - in) to 510 hours of showing a static
image at full brightness.
Obviously, running your
phone at full brightness will kill the battery more quickly, but it does make for a more fetching device.
In order to compare battery life, techradar's standard test is to play a 720p video
at full brightness for 90 minutes.
While the top edge of the Nook pops a bit more than the rest of the
screen at full brightness, we found it less distracting that the four bright spots along the bottom of the Kindle.