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  • Sony Ericsson Xperia Mini ST15a Unlocked Cellphone - US Warranty - Black
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Sony Ericsson Xperia Mini ST15a Unlocked Cellphone - US Warranty - Black

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  • Android OS v2.3 (Gingerbread), 3-inch capacitive touchscreen, Sony Mobile Bravia Engine, Timescape UI
  • Internal phone storage up to 320MB. MicroSD up to 32GB Storage
  • 5MP camera, autofocus, LED flash, geo-tagging, image stabilization, smile and face detection, touch focus
  • 720p HD video recording, Wi-Fi, Bluetooth v2.1, A-GPS support, Stereo FM Radio
  • MP4/MP3, TrackID music recognition, Google Search, Maps, Youtube, Document viewer
  • 5.0-MP camera with HD 720p video capture; Wireless-N Wi-Fi networking; Bluetooth stereo music; GPS navigation; microSD expansion
  • Android 2.3-powered smartphone with brilliant LED-backlit 3.0-inch multi-touch display, and 1 GHz processor
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Technical Details

  • Size (LWH): 3.46 inches, 2.04 inches, 0.62 inches
  • Weight: 3.36 ounces
  See more technical details

Product Details

  • Product Dimensions: 3.5 x 2 x 0.6 inches ; 3.4 ounces
  • Shipping Weight: 10.4 ounces
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B005DIPSX8
  • Item model number: Xperia Mini ST15a black
  • Batteries 1 Lithium ion batteries required. (included)
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (40 customer reviews)
  • Amazon Best Sellers Rank: #290,381 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
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Product Description

Product Description

The Sony Ericsson Xperia Mini ST15a is an Android OS v2.3 with a 3-inch capacitive touchscreen that is scratch resistant. It features a 5MP camera autofocus LED flash with a 720p HD video recording Wi-Fi, A-GPS support and microSD up to 32GB


Small in dimension but big on experience, the unlocked, 3G-enabled Sony Ericsson Xperia Mini mobile phone (model ST15a) comes packed full of innovative features. Powered by the Android 2.3 (Gingerbread) OS, you'll get access to a wealth of Google mobile services as well as hundreds of thousands of apps from the Android Market.

xperia mini headphones
The ultra-compact Android-powered Xperia Mini.

The 3.0-inch Reality Display with Mobile BRAVIA Engine multi-touch display delivers exceptional visual brilliance and a crystal clear image thanks to its LED backlighting. Get direct access to your 16 most used apps by dragging icons from your desktop into the corners of the homescreen. Synchronize your e-mail, calendar and contacts thanks to Exchange ActiveSync. Plus, with the pre-loaded OfficeSuite, you can view documents sent as e-mail attachments.

The 5.0-megapixel camera has a f/2.6 lens, enabling you to capture high quality, bright still photos and HD videos even in low light. The auto-focus camera includes stabilization for still and video capture, smile detection, geotagging, an LED flash, and red-eye reduction features. It also captures HD 720p video.

Other features include a single-core 1 GHz processor, Wireless-N Wi-Fi networking, Bluetooth for hands-free devices and stereo music streaming, GPS for navigation (using built-in Google Maps) and location services, 320 MB user accessible internal memory, microSD expansion (up to 32 GB), access to both personal and corporate e-mail, DLNA wireless media streaming, and up to 4.5 hours of talk time.

Get Social

A highly social mobile phone, the Xperia Mini includes Sony Ericsson Timescape, which lets all your communication with a person come together in one place. Facebook posts, calls, text messages are all gathered, so you don't have to open loads of different apps to see what's going on.

xperia mini wide
Brilliant 3-inch LED-backlit display.

And with Facebook inside Xperia (developed in close cooperation with Facebook), you can make your entertainment truly social. Your Facebook albums pop up in your phone's gallery, and you can comment directly on the pictures. Share recommendations and likes from the music player. Don't miss any of your friends' birthdays or other exciting Facebook events--they're all automatically visible in your calendar. You only need to sign in once to Facebook during start-up of your Xperia Mini.

Vital Statistics

The Sony Ericsson Xperia Mini weighs 3.5 ounces and measures 3.5 x 2.0 x 0.6 inches. Its 1200 mAh lithium-polymer battery is rated at up to 4.5 hours of talk time, and up to 340 hours (14+ days) of standby time. This 3G-enabled phone runs on 800/1900/2100 3G frequencies (compatible with AT&T) in the United States, and international 900/2100 MHz 3G frequencies. Additionally, it runs on the 850/900/1800/1900 MHz GSM/GPRS/EDGE frequencies for voice and 2G data.

What's in the Box

Sony Ericsson Xperia Mini handset, rechargeable battery, USB/wall charger, USB cable, wired stereo headset, quick start guide

Android Gingerbread Operating System

Android Gingerbread

The Xperia Mini runs the Android 2.3 operating system (dubbed Gingerbread)--the fastest version of Android available for smartphones yet. It features a cleaner, more refined interface with new icons, improved top notification bar, and more intuitive navigation.

Multitasking in Gingerbread allows you the ability to run more than one app at a time. If you're playing a game, you can easily switch to an incoming e-mail and then switch back to the game without losing your place. And like the previous version of Android ("Froyo"), Gingerbread provides support for Adobe Flash Player 10.1 for access to the full Web.

A new onscreen keyboard makes it easier to type thanks to additional spacing between the keys and larger font sizes. And the more you use the keyboard, the easier typing will be as the enhanced suggest feature records previous input history to make better suggestions.

The Xperia Mini also brings one-touch access to the popular Google mobile services you use every day. It also provides easy access to both personal and corporate e-mail, calendars, and contacts supported by Exchange Server and Gmail. And through Android Market, you'll get access to thousands of useful applications, widgets, and fun games to download and install on your phone, with many more apps being added every day.

Google Integration
  • Android Market for browsing and downloading thousands of free and paid apps
  • Pre-loaded Android apps: Browser, Calculator, Calendar (Google or Corporate), Camera, Clock, Contacts, Email, Gallery, Messaging, Music, News & Weather, Phone, Settings, Video Player, Voice Dialer, Voice Search, YouTube
  • Google applications: Gmail, Google Search, Google Voice Search, Google Latitude, Google Maps, Google Places, Google Talk
  • Google Maps Navigation with spoken turn-by-turn directions showing real-time traffic and 360° views of the destination

Unlocked Phone

This unlocked cell phone can be used with a GSM network service provider. It does not come with a SIM card, and it requires that you provide a SIM card for usage with your selected service provider.

This phone can be paired with 800/1900/2100 MHz UMTS/HSPA 3G networks in the United States (as well as 900/2100 MHz 3G networks found around the world, including in Europe and Asia). In areas not served by a 3G network, you'll continue to receive 2G data service via the EDGE network (depending on network compatibility).

Note that the downloading of maps, games, music and videos and uploading of images and videos involves transferring large amounts of data. Your service provider may charge for the data transmission, and the availability of particular services and features may vary by carrier.

This phone comes with a full manufacturer's warranty (1-year).

rear view


  • 1 GHz single-core processor speeds up everything--from playing games to watching shows to opening files from work.
  • 3.0-inch multi-touch display (Reality Display with Mobile BRAVIA Engine) with LED backlighting, scratch-resistant glass, and proximity sensor (320 x 480 pixels).
  • Onscreen keyboard
  • Onboard GPS with Google Maps featuring turn-by-turn navigation, street and satellite views, and more.
  • Wireless-N Wi-Fi networking (802.11b/g/n) for accessing home and corporate networks as well as hotspots while on the go.
  • Bluetooth connectivity (version 2.1) includes communication headset, hands-free car kits, and A2DP audio streaming Bluetooth profiles.
  • DLNA compatibility allows you to stream media content from the phone to any other DLNA-certified device as well as play a file from a server on your phone.
  • Memory expansion via microSD card slot with support for optional cards up to 32 GB.
  • 320 MB internal memory (user accessible)
  • 5.0-megapixel camera with LED flash, image stabilizer, auto-focus, touch focus, and red-eye reduction.
  • HD 720p video capture capabilities with video stabilization.
  • Multimedia player compatible with MP3 and AAC music formats, and MPEG4, H.264, and H.263 video formats
  • FM radio with RDS capabilities
  • USB 2.0 port
  • Access to Facebook and Twitter
  • Full messaging capabilities including SMS text, MMS picture/video and IM instant messaging
  • HTML browser (Webkit 5) with Flash 10.1 Support
  • Personal and corporate e-mail access with support for Exchange ActiveSync accounts.
  • 3.5mm headphone jack
  • Speakerphone for hands-free communication.


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Customer Reviews

Very small smart phone.
Wayne E. Wright
His response: "This isn't a common problem with these phones, sir".
Richard A. Tait
The Android OS supports a variety of great apps flawlessly.

Most Helpful Customer Reviews

23 of 23 people found the following review helpful By Amazon Customer on February 25, 2012
Verified Purchase
I have always been a fan of Sony Ericsson phones; I had one before the smartphone boom and it was flawless. My carrier (AT&T) never carries their good phones. Although I'm tech savvy and love gadgets, I procrastinated joining the smartphone movement simply because I didn't want to have to carry around such a large phone. One day I finally broke down and got an Android and loved it! However after a year of use I finally had enough of carrying that big thing around. I have an Android tablet when I want a bigger screen. So I looked at the AT&T store I found that the phones are just getting bigger and bigger! That's so American of us. After much searching, I found this beauty. Thank you Sony Ericsson! It has everything the big phones have but in a tiny package! It's smaller than I could imagine and I giggled for quite some time after unpacking it because it's just so cute!

SIZE: Fits in the palm; can do just about everything one-handed with ease and most importantly, fits in all my pants pockets! I have no problem typing on it. When it is in portrait mode, the stock keyboard is set up like the old number pad style with multiple letters on each key. I didn't like that, but I can see how it might be needed if you have big fingers. I just downloaded my favorite keyboard app and surprisingly can still type just fine with a full keyboard in portrait mode. I usually end up selecting prediction words. It feels really nice in the hand; light but not cheap feeling.

SCREEN: Looks great. Even tiny text is readable. No complaints!

SOUND: Ringer and other media is loud and clear; great for such a small thing. For calls, I'd say it's about average for a smartphone.

BATTERY: Average for an Android. Not great. You would think it would be better with a smaller screen.
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5 of 5 people found the following review helpful By James Runner on February 8, 2012
Verified Purchase
I am very happy with the purchase. The autonomy of the battery is about two days with normal use, and using a program to check the battery can last a little more, if the use is intensive. Definitely the Android operating system is different. The device itself is very practical, easy to use and discreet, is not noticeable to the eye as the giant present smartphones.

The photographs are of good quality, sound is above average, and the integration with my email accounts and social networking is perfect. Actually online.
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5 of 5 people found the following review helpful By Just one opinion on January 30, 2012
Good solid phone that works well. Android gives lots of options. Form factor is great. Sony update the software aswell so it stays current. Works with AT&T if you have the St 15a rather than the St 15i (international) for which data is slow.
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7 of 8 people found the following review helpful By chad on August 3, 2012
Verified Purchase
This item does not work when it gets warm / hot (like a summer day).

I bought this in March 2012. It worked fine until late May, when occasionally, the touch screen wouldn't respond right -- such as, swiping to unlock would only drag the unlock thing part of the way where it needed to go, so I couldn't unlock it sometimes. I noticed that this only occurred when I was outdoors with it.

It got real bad in July -- If I were able to unlock it, I would tap an app, or tap a phone number to call (or answer a call), and it would show the call (or the app) for just long enough to see that it was trying to do something, and then it would shut it down. This happens all the time, unless I'm inside an air-conditioned building and have been inside for 30 minutes.

It gets to this bad condition fast -- If I leave my air-conditioned office to make a call away from people, it gets into this state within about 2 minutes of getting outside.
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9 of 11 people found the following review helpful By Douglas H. Scofield on July 26, 2012
DO NOT BUY THIS PHONE. This Phone has design flaw making it unuseable. It vibrates constantly when warm due to a calibration defect. Check the internet. Poor custome service. DON'T TAKE THE RISK.
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3 of 3 people found the following review helpful By Richard A. Tait on August 28, 2012
Before selecting this phone I did a lot of research, but ironically the most critical bit of information was not revealed to me until the phone was already shipped. Do a search online at Google, Yahoo, or Youtube for "Xperia Mini Problem" and see what comes up. You will find descriptions like "overheating", "unstable display", "back button" and so on. These phones often come with a problem where the back button and the menu button (on the left and right side of the chin of the phone) activate repeatedly all on their own when the phone becomes warm or hot. I read of this issue and dug around until I found a solution, albeit a very involved and complicated one. The option of calling Sony customer care was thrown out since everybody up to that point had tried that and the stuff they had the owners do all failed. So electronic surgery was my solution. I sat and waited for my phone to arrive so that I could carry it out.

When my phone arrived, I charged it and then tried to turn it on. To my horror the phone did not wait to get hot. It started acting up IMMEDIATELY! I left it alone for about an hour, waiting for it to cool down (some owners said their problems occurred after the phone was just charged). I tried again. Same thing. I eventually decided to put the phone in the freezer to cool it down. It sat in the fridge for about 30 seconds. That cooled it down enough so that I could at least have a look around. But not enough to keep it stable outside the fridge. I had to keep the phone(and my head) in the fridge the entire time. I needed the phone to be stable while I carried out the surgery so I conjured up a plan to keep the phone cool by resting it on a container filled with ice-cubes! This was late at night so I decided to wait until after I had spoken to customer care about the issue.
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