22 ANDROID ADVISOR • ISSUE 71
the second display – use an always-on display on
both panels at once and the phone will drain in half
a day, but with more conservative settings you can
get between a day or a day and a half of use, which
is pretty typical for Android right now.
The side-mounted fingerprint sensors are both
quick and easy to use, and still preferable to the
slightly slower in-display sensors for the most part.
With no selfie camera there’s no face unlock – not
even on the rear display – so it’s fingerprint or PIN
only though.
Cameras: Less is more
An extra screen perversely means fewer camera
lenses. The whole point of slapping an extra screen
on the Z20’s back is to avoid putting any cameras on
the front. Instead, you simply use the rear cameras
for every photo, turning that screen on when you
want to take a selfie.
There’s a benefit there, as it means getting to
use the high spec rear cameras for selfies, rather
than putting up with a lower resolution camera
squeezed into a notch. And Nubia has leant into the
Z20’s camera specs – though actual performance
doesn’t quite live up to the promise on paper.
The main lens is 48Mp, as you’ll find on a whole
range of high-end phones this year – though
as with most of those, it defaults to taking 12Mp
photos and using pixel binning to up the quality.
HDR support does a good job of managing
exposure and light levels, helped by an f/1.7 aperture,
but on the standard photo mode Nubia’s camera
