Meanwhile, those precious electronics are protected by a shell that's water- (IPX5/7) and dust-resistant (IP5X). It's rare
to see such protection on a phone that's not being marketed as a rugged
device, let alone a company's new flagship. Sony is looking to succeed
in mobile and, with just a week away from the world's premier phone tradeshow, has the company created something that can stand up against current Android champions and win?
Sony Xperia Z review

Hardware
Where
to start with the hardware? How about here: this is Sony's best-looking
smartphone ever. Lacking any removable panel to access the battery
meant that the Xperia Z's components could be squeezed together into a
slender profile measuring a mere 7.9mm (0.31 inch) and weighing in at
146g (5.15 ounces). Thanks in part to the hidden ports, light is able to
bounce off the phone's white sides. In short, it's a real beauty. It's
worth noting that alongside the increasingly safe choice of black and
white, there's also a purple edition -- one that our Spanish team got to play with.
Where to start with the hardware? How about here: this is Sony's best-looking smartphone ever.
But
while it's certainly a looker, the expanse of that 5-inch screen and
accompanying bezel mean that it isn't the most comfortable smartphone
we've handled. Compared with the substantial Lumia 920,
the Xperia Z is slightly taller, but it's easier to grip, thanks to
that slimmer shape. Put differently, it feels more like the Droid DNA
than, say, the Galaxy Note II. As we noted before, reaching the phone's upper edge is a bit of a stretch if you're using it one-handed -- we're hoping Sony's incoming Xperia ZL
(with its smaller dimensions) will prove a little more manageable.
Thanks to one very geometric silhouette, the phone is a little
uncomfortable to hold after extended use, what with those sharp corners
pressing into your palms. However, we had no problems sliding it into
our pockets -- something we can't say of other phones with 5-inch
screens.

That glass-coated backing brings the Xperia Z into such esteemed company as the Nexus 4 and iPhone 4S,
although Sony has differentiated its design by extending these glass
panels to the sides too. Both the back and front include a
shatter-resistant layer (
not Gorilla Glass), while a
glass-fiber polyamide skeleton connects all those panels together. This
skeleton rounds out the corners between the panels, which helps smooth
those angles at least to some extent.
Two other notable features
are the Xperia Z's IPX5/7 and IP5X ratings. In real terms, Sony says the
phone can handle water up to a depth of one meter, and is resistant to
guided water jets. It's also designed to steer away dust from the
phone's more delicate parts. To access the micro-SIM and microSD slots,
as well as the micro-USB and headphone sockets, you'll need to flip out
the sealed covers. There's a rubber lining behind each one, ensuring the
water's kept out. We tested it in bowls of water, the shower and even
gave it a quick hose down, but none of this resulted in a panicked call
to Sony requesting another review unit. The flaps also feel substantial
-- we have no concerns about them breaking off after extended use. Heck,
you could even lift the phone up with them (not that we suggest you do
that). At the same time, opening these flaps is less laborious than
pulling off a battery cover or battery to access a micro-SIM slot or SD
reader.
While you won't have to open
those flaps very
often, you'll be accessing that micro-USB port pretty frequently. (Not
to spoil our battery performance section, but the runtime isn't great.)
With all those mechanical openings covered, it would have been nice to
see some form of wireless charging, given that it's already out there on
rival phones like the Lumia 920, Droid DNA and Nexus 4.

Thanks
to those port covers, however, the phone's streamlined perimeter is
interrupted only by the power button, which will look familiar to anyone
that's turned on a PlayStation Vita. Just off-center along the length
of the right edge, it's made of machined aluminum (like the volume
rocker just below it) although you won't get a camera button this time
around. This is apparently a sacrifice that had to be made to ensure the
phone would be water-resistant, but it feels like a glaring omission
just the same. The micro-SIM slot is on the same side, while a single
loudspeaker sits on the bottom of the right side. Unfortunately, the
speaker is tinny and, even on full blast, lacks punch during video
playback.
On the left edge, you'll find the covers for microSD
and micro-USB, plus contacts for an as-yet-unseen dock. Flip the phone
over to the glossy (but fingerprint-prone) back, and you'll note the
main 13-megapixel camera, flash and secondary mic. The lens is
fortunately slightly recessed, which should defend it from scratches.
When we pulled the phone out of its packaging, there was a removable NFC
sticker, but otherwise there are only some Xperia branding and a few
serial numbers at the bottom interrupting that white surface.
On
the front, there's no white paneling (aside from a sliver of the side),
with a black border instead framing the 5-inch screen. Up top, you'll
find the front-facing 2-megapixel camera with Sony's Exmor R sensor --
and it also supports HDR! Below the screen, there's nothing beyond the
phone's mic. The Xperia Z has on-screen buttons rather than any
capacitive keys.
Display
While quite
a few companies have announced phones with 5-inch, 1080p displays, the Xperia Z is still
one of the first to arrive for review, if not
the first. The phone beams out a resolution substantially higher than the Xperia T,
and as dimensions have increased only slightly (4.6 to five inches), it
offers a higher screen density of 443 pixels per inch. As we said
during our Droid DNA review,
while there's less of a leap from 720p to 1080p compared to qHD to
720p, that's not to say you won't notice sharper fonts, richer images
and a crisper view of your photos.
Comparing the Xperia Z against the only other 1080p phone we've
reviewed, the Droid DNA, Sony unfortunately comes in second place
Comparing the Xperia Z against the only other 1080p phone we've reviewed, the Droid DNA,
Sony unfortunately comes in second place. Sony is calling its new,
thinner display the OptiContrast panel, but its performance doesn't
offer the same viewing angles, or outdoor performance, of HTC's Super
LCD 3 screen. In fact, turn the screen away from straight-on viewing,
and you'll see a grayish discoloring that starts to obscure what's going
on -- especially under bright light. While Sony says the new display
construction should reduce reflection, sunshine and certain lighting
conditions often made it difficult for us to read even the home screen.
As we've also seen on Sony's mobile displays in the past, black
backgrounds and detail often appeared more like a dark gray. If
anything, the phone is often too bright -- the Xperia Z's brightness
setting could do with a wider range of contrasts and a lower base
setting. Not that we'd want to lose the brightest option, as while you
won't have anything to fear from rain with the water-resistant Z model,
we needed one of the top brightness settings to see what we were doing
on the touchscreen when the sun came out.
This is the first phone to feature Sony's improved Mobile Bravia Engine 2,
which is responsible for a host of contrast and sharpness enhancements
to your photos and videos (whether they were recorded on the phone or
downloaded from some other source). The software will tweak darker
regions to be even blacker, while distortion from lower-quality videos
from the likes of YouTube is also reduced -- videos did look marginally
smoother. Conversely, there's also a sharpness filter for images, which
boosts edges and contrast -- apparently without adding noise, either.
The additions seem a bit more aggressive than on preceding Sony phones,
and when we looked at our freshly captured photos we noticed an
excessive bluish tinge on some of them, regardless of white balance
selections. This doesn't appear to be tied to the Bravia tweaks (which
can be turned off if you don't like your photos extra-saturated) and
appeared substantially reduced when we viewed them on other device, like
a PC.
Camera
It's the debut for Sony's new Exmor RS sensor. Promising improved
signal processing, while matching the image size of the Xperia T (up to
12 megapixels); it's a whole new sensor. The standout improvement here
is HDR video, offering a bigger dynamic range of lighting in your video
capture. In practice, it works well. We test a lot of cameras, and the
Xperia Z's new feature generally offered better light composition during
our tests. Sometimes it overcooks colors, with a bit too much noise,
but we'll definitely take that in exchange for the better light balance.
Check out our sample video, taken in a dimly light underground tunnel.
Sony Xperia Z sample shots
Naturally, HDR stills are also possible, although during our time with
the camera we found the new "auto i+" setting generally offered up
results that were as good (if not better) than what we got with the HDR
option or manual settings tweaks. The new auto setting mostly does an
excellent job adjusting ISO, white balance and toggling HDR. After we
were done taking our comparison shots, we ended up leaving the phone on
auto for the majority of our photos.
Most of our shots were taken
on the preset 9-megapixel setting and though the phone does output
images at 12 megapixels, they arrive in an awkward 4:3 ratio that
doesn't really do the high-resolution screen justice.
However,
when comparing both sizes to 8-megapixel images on rivals, we found
those larger images offer scope for a little more detail. The 9MP images
appeared almost identical in quality to the full 12MP samples, although
the subject appears closer. Color reproduction was good, with HDR
offering a boost to our low-light images. We did notice that HDR mode on stills was pretty gentle -- probably due to that Exmor RS sensor tweaking we heard about late last year.
Compared to our photos on normal mode, there's some slight highlighting
of darker areas. So it's bad news if you were hoping for the same
sci-fi-esque effects you get on other HDR cameras, but it's at least
more realistic.
Sony has also made adjustments to the
camera interface, which at least started in a good place, with access to
ISO and white balance, not to mention the ability to create shortcuts
for these right on the surface camera UI. There's now a burst mode,
capable of 10 frames-per-second at 9-megapixel resolution. You can now
grab shots while taking video, but better still, there's no need to flip
between camera and video camera modes -- just choose the appropriate
record button. Also, if you've used one of Sony's point-and-shoots (or
even NEX cameras) you'll find navigation and icons have been transported
across. Like the button detail from the Vita, it's great to see Sony's
many electronics lines finally start to converge towards each other.
Software
The Xperia Z arrives just behind the latest Android iteration. It's
still Android Jelly Bean, but it's version 4.1.2. Admittedly, the additions since then are relatively minor, but Sony has the unfortunate knack for launching its best phones without the very brightest software. Since last year's Xperia models, we can now welcome Google Now to the fold, while Spotify and other apps are now accessible from the lock screen.
Take a closer look at Sony's distinct take on Android and you'll find
some likable additions, like the Rolodex-style gallery widget or the
expandable power management widget pre-installed alongside some slightly
more unnecessary space hogs, like a Walkman audio player widget or
Sony's Entertainment Network.
Yep, you'll be hard-pressed
to avoid Sony's media libraries when you first boot up the phone. We
resisted the urge to delete these from the outset and gave them a try,
regardless. Sony Select offers a gentle introduction to Google Play
wares, as well as Xperia-centric music and movies. We can't fault it for
offering a spot-on selection of beginner apps, but you'll find there's a
lot of crossover from Google's own recommended section. The gaming
options here are a little more tiresome, although you'll get some of
Gameloft's better (and licensed) titles here. Again, we're not sure if
anyone already versed in buying their apps and games direct from Google
will need the Select service -- the icons even redirect to Google Play.
It's a shame to see so relatively little 1080p content, something to showcase that full-HD display
Sony's thrown your video collection into its new movies icon. It's also
a more subtle way to usher you towards its Video Unlimited catalogue of
movies and TV shows. We tried the service out, downloading a 90-minute
(1GB) movie quickly enough. Prices are a little steep: we bought
Mass Effect
for £11.99 (it's just £8 on the UK's Google Play), while renting costs
£3.49 -- the same as on Android's stock movie service. The payment
process is all relatively painless once you've got your Sony
Entertainment Network account up and running -- you can even use the
same username from your PlayStation. Still, it's a shame to see so
relatively little 1080p content, something to showcase that full-HD
display. Almost everything we browsed (even Sony movies like
The Amazing Spiderman)
had a standard-definition option and nothing else. The player itself
was at least capable; it plays back DivX videos and uses Gracenote to
grab extra details, like cast lists.
Walkman, its musical
counterpart, contains your own music catalog, a few free tracks from
artists like Tom Odell and -- no surprises here -- Music Unlimited.
Signing up for a premium subscription will net you offline playback
across your compatible Sony hardware, the iPhone and other Android
devices. In the UK, this rings up at £10 and there's a good amount of
music on offer -- thanks to Sony's own music industry clout. The service
has also recently upgraded its streaming quality to 320Kbps on Android,
PS3 and PCs. But if you've already got a Spotify subscription going, we
can't find much here to pull you away.
Performance and battery life
| Sony Xperia Z | LG Optimus G | HTC Droid DNA |
| Quadrant (v2) | 8,019 | 7,628 | 8,028 |
| Vellamo (v2.0 HTML5) | 2,198 | 1,710 | 1,752 |
| AnTuTu | 19,876 | 11,284 | 14,474 |
| SunSpider 0.9.1 (ms) | 1,900 | 1,284 | 1,150 |
| GLBenchmark 2.5 Egypt 1080p Offscreen (fps) | 29 | 31 | 31 |
| CF-Bench | 16,079 | 14,398 | 18,386 |
| Battery life (rundown test) | 5:35 | 8:43 | 6:38 |
| SunSpider: lower scores are better |
Qualcomm's quad-core 1.5GHz Snapdragon S4 Pro powers the lush 1080p
screen, and is paired with 2GB of RAM, 16GB of flash memory and
expansion through microSD up to 32GB. Does it sound a bit familiar? It
should, as this is nearly identical to the HTC Droid DNA and (barring
that microSD option and resolution boost) LG's Optimus G and Nexus 4,
which at least makes for some interesting comparisons.
Curiously,
the benchmark results are a mixed bag. While the Xperia Z took the lead
in AnTuTu and Vellamo, it offered us a surprisingly poor score in
SunSpider, a test for browser performance, and one where you'd expect a
top-drawer handset to score closer to 1000ms (remember: lower numbers
are better in this case). Meanwhile, CF-Bench, which tests subsystem
goings-on and JavaScript performance, placed the Sony phone squarely
between LG's Optimus G and HTC's Droid DNA.
However, numbers are
just numbers and we found the Xperia Z to be impressively swift in most
use cases. If anything, it handled processor-intensive tasks better than
simple ones. We had a few issues with the phone stuttering while trying
to open the task manager widget -- there's a substantial lag between
your tap and the widget expanding to offer access to various wireless
and brightness toggles. Similarly, when launching the camera app from a
freshly booted device, it took a mind-numbing three seconds on average
-- something that could be a dealbreaker for shutterbugs, especially
considering the lack of a physical camera key. At least once it's
running, it then launches within a more bearable timeframe. Alas, even
then, launching the camera from the lock-screen still took around two
seconds -- not good enough.
When launching the camera app from a freshly booted device, it took a mind-numbing three seconds on average
What concerned us more, though, was that the Xperia Z didn't go beyond
six hours on our battery rundown test. Looping video at 50 percent
brightness, with WiFi on (but not connected), the phone managed a little
over five and a half hours on our first test. That's actually longer
than the Nexus 4 which also had issues going the distance at 5:18, but
less than both the Droid DNA and the 720p Optimus G. Oddly, the Z model
packs a 2,330mAh power cell, versus the 2,020mAh battery found on HTC's
5-incher. So what's going on here? We repeated our test twice, as
it'd be a shame for an erroneous benchmark to sully the Xperia Z's name.
However, the second round added only 10 minutes. It could be that
Sony's screen tech is less power-efficient than HTC's IPS Super LCD 3.
That's our best guess, as there's really not much else to separate the
pair -- we even ran the video clip from the flash storage, not the
microSD slot.
Update: We've just re-run
our battery test with the Bravia Mobile Engine 2 switched off -- just in
case it was running behind our third-party app. (We've been told that
the Mobile Engine is attuned to the album app's video player, YouTube
and the gallery viewer.) Sadly, the results are about the same, with the
Xperia Z lasting 5:10.
Our UK-bound
review model arrived with plenty of radio bands to share. There's
quad-band GSM/EDGE (850/900/1800/1900) plus tri-band HSPA (850/900/2100)
and a healthy dose of LTE on Bands 1, 3, 5, 7, 8
and 20.
Unfortunately, we were unable to test the phone with an EE SIM, but
across Three, EE and O2's HSPA services, we saw download speeds on HSPA+
around 4 Mbps, while uploads hovered around 1.5 Mbps. AT&T
customers, with their compatible HSPA bands, are the ones most likely to
benefit from importing the device early -- we've still heard no word
about US pricing and availability for either the Xperia Z or the Xperia
ZL.
Wrap-up

It's been five months since Sony's last phone, Xperia T, was released.
During that review, we noted that while Sony had perfected the art of
the press shot, the hardware really didn't live up to the fantasy.
Particularly in comparison to an iPhone, Lumia or HTC's One series, it
did the Sony brand a disservice. So, it's a relief to see the company
now making a concerted effort to make a premium phone -- and that's what
this is. If you weren't sold on the older polycarbonate look, perhaps
Sony's new beauty will be more to your tastes. Exactly how much rough
and tumble the Xperia Z's glossy sides will stomach remains a mystery,
but after our testing period the phone is still free of scratches. We
also applaud Sony for bringing water resistance to its new phone.
Protection from an early watery grave often meant settling for less when
it came to design or performance, but that's certainly not the case
with the Xperia Z.
It's a relief to see Sony now making a concerted effort to make a premium phone -- and that's what this is
We can expect to see many, many more 1080p phones through 2013, and
while the Xperia Z might not best the overall quality of HTC's 5-inch
panel, the phone itself has a far more distinctive look than its
competitors. While the Snapdragon S4 Pro was the best of the 2012
processor bunch, we already know what to expect from phones later this year -- maybe Sony should have waited a little longer?
Perhaps the bigger question is how to square the £300 difference
(off-contract) between the Xperia Z and the Nexus 4. Both are powered by
the same high-performance S4 Pro, with 2GB of RAM, but Sony's option
has expandable storage, a 13-megapixel camera capable of HDR video and
that 1080p display -- even if the Google phone's screen performs better
outside of a pure pixel count. If the Xperia Z had trounced the Nexus in
battery life, we'd have happily recommended the omnibalance smartphone,
but a disappointing showing there makes it a much tougher call, and one
your wallet might have to make for you.