Sony Xperia U Quick reference guide
White paper
February 2012
Xperia™ U
ST25i, ST25a
White paper | Xperia™ U
2 February 2012
This document is published by Sony Ericsson
Mobile Communications AB, without any
warranty*. Improvements and changes to this
text necessitated by typographical errors,
inaccuracies of current information or
improvements to programs and/or equipment
may be made by Sony Ericsson Mobile
Communications AB at any time and without
notice. Such changes will, however, be
incorporated into new editions of this document.
Printed versions are to be regarded as temporary
reference copies only.
*All implied warranties, including without
limitation the implied warranties of
merchantability or fitness for a particular
purpose, are excluded. In no event shall Sony
Ericsson or its licensors be liable for incidental or
consequential damages of any nature, including
but not limited to lost profits or commercial loss,
arising out of the use of the information in this
document.
This White paper is published by:
Sony Ericsson Mobile Communications AB,
SE-221 88 Lund, Sweden
www.sonyericsson.com
© Sony Ericsson Mobile Communications AB,
2009-2012. All rights reserved. You are hereby
granted a license to download and/or print a
copy of this document.
Any rights not expressly granted herein are
reserved.
First released version (February 2012)
Publication number: 1257-8163.1
Purpose of this document
Sony mobile product White papers are intended to give an overview of a product and provide details in
relevant areas of technology.
Document history
Sony Developer World
For the latest technical documentation and development tools, go to www.sonymobile.com/developer.
Version
February 2012 First released version Version 1
White paper | Xperia™ U
1 February 2012
Table of contents
Product overview ........................................................................................................2
Sony Xperia™ U – Powerful and personal ............................................................2
Signature features .................................................................................................4
Facts – dimensions, weight, performance and networks ......................................5
Categorised feature list ..........................................................................................7
Technologies in detail .................................................................................................9
Device-to-device communications (local) .............................................................9
Bluetooth™ wireless technology ........................................................................9
Wi-Fi® ...............................................................................................................10
DLNA Certified® (Digital Living Network Alliance) ............................................11
Messaging ...........................................................................................................12
MMS (Multimedia Messaging Service)..............................................................12
Email .................................................................................................................12
Positioning – location based services .................................................................13
Provisioning (OMA CP) ........................................................................................13
Multimedia (audio, image and video) ...................................................................14
Synchronisation (OMA DS, EAS, Google Sync™) ...............................................15
Web browser .......................................................................................................16
Trademarks and acknowledgements ..................................................................17
White paper | Xperia™ U
2 February 2012
Product overview
Sony Xperia™ U – Powerful and personal
Get yourself a front row seat. Enjoy the sights and sounds of your favourite films and music bombarding
your senses. On Xperia™ U’s razor sharp Reality Display, and in 3D surround sound. Snap photos fast,
film videos in super-sharp HD, and share them with your friends in a flash. Enjoy it all with super quick
performance powered by a dual core processor. Let the true you shine through with super snazzy
coloured bottom caps and a transparent band that changes colour to suit your themes, photos and album
art.
Made for movies
Watch every moment from every movie in crystal clear colours. See every smile from last year’s party in
true detail. Sheer video magic on the 3.5” Reality Display with Mobile BRAVIA® Engine. And with a dual-
core processor at its heart, you’ll enjoy super-fast performance whether surfing the web or enjoying the
latest Hollywood blockbusters from Sony Entertainment Network.
Don’t miss the hit
Watching volleyball on the beach? Capture the smash, not the sand. Fire up the camera. Fire off the shots.
From sleep to snap in just over a second. And with 5 megapixels and face detection you’ll shoot that
winning smile. Fancy something more moving? Why not film the whole tournament in razor sharp high
definition?
Live the sound
Start your own sing-a-long. Download that summer playlist. Enjoy it all in crisp and loud sound with xLoud
and 3D surround sound Sony audio technology. Plug in your earphones, sit back and listen, as the deep
bases and high trebles shoot around your head.
Add some shine to your life
Watch the transparent band light up your life. It reflects your favourite artists’ album arts with matching
colours when you browse through your music, and changes to match the shades in your photos. Or why
not choose a theme that matches the exchangeable cap? Then you'll see the transparent band light up in
the same colour when you receive a call.
White paper | Xperia™ U
3 February 2012
Sony Entertainment Network1. Your ultimate source for digital entertainment
Feasts for film fans, masses of music. Enjoy a catalogue with millions and millions2of songs from Music
Unlimited. Or download your favourite hit movies from Video Unlimited. It’s all on Sony Entertainment
Network. No trips to the store. No late fees. Just pure entertainment. The best tracks from Music
Unlimited. The latest movies from Video Unlimited – enjoy everything with one account. It’s the perfect fit
for a life full of entertainment.
1.Video Unlimited and Music Unlimited are not available in every market.
2.The number of tracks available by country varies.
White paper | Xperia™ U
4 February 2012
Signature features
Sony Xperia™ U comes with a range of features as standard. Below is a summary of the key signature
features.
Xperia™ Timescape™
The place to meet your friends
The Timescape™ application manages all your communication with one person in one place. You can
effortlessly browse by category your Facebook™, Twitter™, email and text communications, as well as
view your photos. Now everything is all together and in chronological order, so you don't have to open
different applications to see what's going on.
Xperia™ Infinite button
Everything you want – from everywhere
Tap the infinite button in the Timescape™ application and smart filter each category of communication by
person. For example, when viewing a text message from a friend in Timescape™, tap the infinite button to
view a list of all chat messages with that friend.
Xperia™ Local connectivity
More control over your media
Using Xperia Local connectivity, you can exercise more control over how media files get transferred and
stored. For example, you can select MTP mode to transfer files if you want to limit the risk of data corrup-
tion or select MSC mode if you want to have more control over the data storage.
Xperia™ Home screen application
The place you call Home
Customise your Home screen with widgets, shortcuts, folders, themes, wallpaper and other items.
Where’s best for you? Email top right? Music player bottom left? You decide. With four extensions to your
Home screen, you’ve got plenty of space to put things where you want. Just remember to flick left or right
to find them.
White paper | Xperia™ U
5 February 2012
Facts – dimensions, weight, performance and
networks1
1.Performance metrics measured under laboratory conditions
Operating system Google™ Android™ 2.3 (Gingerbread)
Processor 1 GHz STE U8500 Dual Core
Size 112 x 54 x 12 mm
Weight 110 grams
Available colours Black
White
Main screen
Colours 16,000,000 colour TFT
Resolution 854x480 pixels
Size (diagonal) 3.5 inches
Scratch-resistant Yes – anti-reflection coating on mineral glass
Input mechanisms
Text input On-screen QWERTY keyboard
Touch screen Capacitive (multi-touch)
Touch gesture Yes – multi-touch, up to 4 fingers supported
Memory
RAM 512 MB
System memory 2 GB
Phone memory 2 GB
Internal storage 4 GB
Camera
Camera resolution 5 megapixel
Digital zoom 16x
Photo flash Yes – LED
Video recording Yes – HD 720p
Video chat camera Yes
Sensors
Accelerometer Yes
Proximity sensor Yes
White paper | Xperia™ U
6 February 2012
* Values are according to GSM Association Battery Life Measurement Technique as performed in control-
led laboratory conditions. Actual time may vary.
NOTE: Battery performance may vary depending on network conditions and configurations, and phone
usage.
Ambient light sensor Yes
Magnetometer Yes – Compass
Networks
ST25a UMTS HSPA 850 (Band V), 1900 (Band II), 2100 (Band I)
GSM GPRS/EDGE 850, 900, 1800, 1900
ST25i UMTS HSPA 900 (Band VIII), 2100 (Band I)
GSM GPRS/EDGE 850, 900, 1800, 1900
Data transfer speeds
GSM GPRS Up to 107 kbps (download). Up to 85.6 kbps (upload)
GSM EDGE Up to 296 kbps (download). Up to 236.8 kbps (upload)
UMTS HSPA cat 6 (upload) Up to 5.76 Mbps
UMTS HSPA cat 10(download) Up to 14.4 Mbps
Talk t im e (GSM) Up to 6 hours and 36 minutes*
Standby time (GSM) Up to 260 hours*
Talk t im e (UMTS) Up to 5 hours and 36 minutes*
Standby time (UMTS) Up to 472 hours*
Music listening time Up to 45 hours
Video playback time Up to 6 hours
Battery 1320 mAh, typical
1290 mAh, minimum
White paper | Xperia™ U
7 February 2012
Categorised feature list
Camera
3D Sweep panorama™
5 megapixel camera
16x digital zoom
Auto focus
Face detection
Flash/Photo flash
Flash/Photo light
Front-facing camera (VGA)
Geotagging
HD video recording (720p)
Red-eye reduction
Self-timer
Send to web
Sweep Multi Angle
Sweep panorama™
Video light
Video recording
Music
Album art
Bluetooth™ stereo (A2DP)
Clear bass
Clear stereo
Manual equalizer
Music Player
PlayNow™ service*
SensMe™
TrackID™ music recognition*
xLoud™
Internet
Android Market™
Bookmarks
Google™ search*
Google Voice™ Search*
Google Maps™ for Mobile with
Street view and Latitude™*
NeoReader™ barcode scanner
Web browser (WebKit™)
Communication
Call list
Conference calls
Facebook™ application*
Facebook inside Xperia™
Google Talk™ application*
Noise suppression
Xperia™ Timescape™
Speakerphone
Twitter™ (Timescape™
integration)*
Video chat ready
Messaging
Conversations
Email
Google Mail™*
Instant messaging
Multimedia messaging (MMS)
Predictive text input
Sound recorder
Text messaging (SMS)
Gesture input
Voice input
Design
Auto rotation
Keyboard (on-screen, QWERTY)
Picture wallpaper
Reality Display with
Sony Mobile BRAVIA® Engine
Screenshot capturing
Touch screen
Live Wallpaper
White paper | Xperia™ U
8 February 2012
* This service is not available in all markets.
Entertainment
Media browser
Radio (FM radio with RDS)
Sony Entertainment Network*
Video streaming
YouTube™*
Organiser
Alarm clock
Calculator
Calendar
Airplane mode
3D Album
Infinite button
Contacts
Setup guide
Stopwatch
Timer
Connectivity
3.5 mm audio jack (CTIA)
aGPS*
Bluetooth™ wireless technology
DLNA Certified®
Media Transfer Protocol support
Micro USB support
Modem
Native USB tethering
Media Go™*
Synchronisation via Microsoft®
Exchange ActiveSync®
USB High speed 2.0 support
USB mass storage
USB Host
Wi-Fi®
Wi-Fi® Hotspot functionallity
Wisepilot™ turn-by-turn naviga-
tion*
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