ISSUE389|COMPUTER SHOPPER|JULY2020 89
TABLETSANDE-READERS
pixels per inch (ppi) rather than horizontal and
vertical pixel counts as tablet screens are.
More pixels per inch means greater density
and thus asharper screen, so text will look
crisper on a300ppi displaythan a167ppi one.MAKE SOME SPACE
Contemporary tablets can be almost
unbelievably thin. The Samsung Galaxy TabS6,
forexample,isamere 5.7mm from front to
back. That’s great forportability,but it has the
drawback of limiting physical connectivity,
usually to one small data port, aheadphone
jack and sometimes amicroSD slot.
You’ll therefore be mainly relying on Wi-Fi
and Bluetooth, though expandable storage is
particularly useful if you’re likely to be making
very heavy use of your tablet. With e-readers,
you can’t typically expand on the internal
storage,which you might notice sounds low:
4GB to 8GB, most likely.However,ifyou’re
only saving ebooks, that’s not necessarily
anything to worry about, as these are
essentially text files and as such don’t take up
nearly as much space as videos and images.
If,however,you choose an e-reader that can
store and playback audiobooks, you’ll
find that 4GB models fill up much quicker.
One tactic used by tablet manufacturers
to avoid them being cannibalised by 2-in-1s
is to modify the (conventionally mobile-
focused) operating system to be abit more
desktop-like; so even if it’s generally going
to be used as astandard tablet, it at least
has adash of 2-in-1 capability should you
ever want to add akeyboard.
Apple’s iPadOS and Samsung’s DeX
platforms both demonstratethis approach,
expanding on aspects such as keyboard
support, multitasking and file management. If
you’re not interested in using your tablet for
productivity,the good news is that these
tweaks can be ignored, though you shouldn’t
expect asimilar enthusiasm forimproving the
classic tablet touchscreen experience from the
base iOS or Android experience.
That said, if you’re open to the notion
of using your tablet as alaptop, it’s worth
noting that iPadOS has abetter selection of
‘serious’ apps than Android.READ SPEED
Youcan expect smartphone-like performance
from most tablets, forthe simple reason that
theyoftenuse the same system-on-a-chip
(SoC) designs. Apple,for instance,recycles
the chips used in its iPhones forits iPads,
while Samsung uses common Qualcomm
Snapdragon SoCs.
We’ve tested tablet performance using
benchmarks, and although the same tools
won’tworkone-readers, the principles are the
same: responsiveness is key, andsluggishness
when navigating an ebook store is just as
irritating as it is viewing awebsiteonatablet.
Then again, it’s easier to forgive low
performance on e-readers, as they’re (usually)
cheap and simple by design, your primary
interaction with them being to turn pages; notsomething that would massively benefit from
additional computing power.With tablets, it’s
more vital that the hardware is up to scratch,
as you’ll be switching through multiple apps
and maybe even playing 3D games.THE DRAIN GAME
Battery lifeisn’t something you should worry
about toomuch when it comes to e-readers.
Even the shortest-lasting models will keep
going fordaysoreven weeks of regular use,
thanks in part to their use of low-power
processors and economical E-Ink displays.
Tablets are another story.These will have
much larger batteries, but with bigger,
higher-resolution colour displays and
multicore processors, you’ll burn through
them much faster than with an e-reader.
Our battery benchmark test involves
looping afull-screen video file from full
charge to empty, keeping flight mode on and
brightness at amodest 170cd/m^2 to measure
heavy usage without employing worst-case
conditions. Anything that lasts under 10
hours won’t necessarily require daily
recharging, but anything higher is ideal.
While backlighting has been standard on
most screens –tablets, smartphones laptops,
even handheld games consoles –for years, it’s
only recently become acommon feature on
e-readers. Also known as areading light, aset
of backlighting LEDs makes it possible to read
in darkness and low light; amajor benefit.
Luckily,all four of the e-readers in this
round-up include areading light.
Less common is alow blue-light mode.
The problem with screens lit with whiteorblue
LEDsisthat the light theyemitcan cause eye
strain when viewed forlongperiods, and can
even prevent some people from sleeping.
Some e-readers therefore come with orange
LEDs as well, which illuminatethe screen while
cutting down or eliminating the blue light.
This can help prevent discomfort when you’re
glued to the pages of agoodebook, though
unlike whitebacklighting it hasn’t quite
become astandard feature yet. You’ll have to
paymore to get an e-reader with alow
blue-light mode,sothink about whether
you’ve had problems with smartphone and
monitor screens, and decide foryourself if it’s
worth the expense.NOWLISTEN HERE
Lastly,beonthe lookout forany little extras
you can get with your tablet or e-reader
purchase.Astylus, forexample,would let you
take quick notes on atablet without needing
the on-screen keyboard. The Amazon Kindle
Kids Edition also comes with arobust case and
content subscription, though it could be
argued these aren’t ‘extras’ per se,asthe
whole thing costs more than the otherwise
identical standard Kindle.
Audiobook support, on the other hand, is a
bonus that spans the Kindle range regardless
of price.You’ll need to make sure you have a
pair of Bluetooth headphones, however,as
e-readers don’t tend to feature 3.5mm jacks.and their use of wider aspect ratios more
closely resembles the format of real books.
In other words, both tablets and e-readers
are still worth picking up today. In the
following pages you’ll find tests of some of
the best (and worst) devices you can buy,as
well as this guide to choosing one with the
right specs and features.
INK IN MODERATION
One of the unique qualities of tablets is their
displaysize, which tends to range from about
7in to 11in –more spacious than asmartphone,
but smaller than laptops and most 2-in-1s. This
provides anice balance forwatchingvideosor
reading long web pages without needing to
squint or hold the screen tooclose to yourface,
while also keeping the tablet small enough for
easy portability and one-handed use.
Tablet screens usually employthe same
IPS or AMOLED panel technology as
smartphones, so expect wide viewing angles
and colours with plenty of pop.AMOLED
screens have better contrast, but IPS screens
can go brighter; we’ve conducted our usual
calibrator-aided displaytests to measure each
model’s strengths and weaknesses.
E-reader screens favour smaller (6in to 7in)
E-Ink panels, which are designed to achieve
two things: use aminimal amount of power,
and to more accurately replicatethe
appearance of inkonreal paper.These are
always black and white, so mainly differ in
resolution, which is typically measured in