Amazon.com Product Description:Open up to the sophisticated style of the Z710i. This clamshell phone features effective calling and messaging and a variety of connectivity options. All in a stylish, classy design. With a music player, and key features like Bluetooth connectivity, a powerful Web browser and contacts/calendar synchronization functions, a 2.0 megapixel camera, an internal antenna, a memory card slot, and a speakerphone, the Z710i is a stylish and versatile clamshell phone.

Sophisticated styling, and a focus on business users, make the Z710i a great mobile companion. See theZ710i video, or view aninteractive presentation. |

The Netfront HTML browser gives you a complete mobile Web experience. |

Memory Stick Micro storage media makes it easy to take all your media with you. |

A 2-megapixel camera lets you snap quality pictures while you're on the go. |
Design This unlocked cell phone can be used with a GSM network service provider and it provides quad-band connectivity (850 MHz, 900 MHz, 1800 MHz, 1900 MHz). 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 comes with a one-year warranty from a third party provider.
The Z710i's 262,144-color, 176 x 220 display is housed under the front cover while the outside sports a supplementary 128 x 128 monochrome display that can display time, call information, battery and signal strength, and more. The 2.0 megapixel camera is housed on the front cover as well. Because the Z710i uses an internal antenna, there's nothing to snag or break off, while a five-way button just above the dial pad is used to control most of the phone's menus and features. Up/down buttons on the left side of the phone can be used for quick volume control and menu navigation. Meanwhile, a unique key lock switch is located on right side of the phone, while USB data and charging ports, as well as a headset port, are located on the phone's bottom edge. A slot is also provided for Memory Stick Micro storage media.
Calling Features
The Z710i's phone book and 10 MB of memory can hold up to 1000 contacts with multiple entries per contact. A call list remembers your most recent missed, received and dialed calls. The phone's voice activated dialing makes calling your friends, family and associates as easy as saying their names. The phone also features a speakerphone for easy, hands-free talking. In addition to a vibrating alert, the phone supports polyphonic ringtones as well as MP3- and AAC-format ringers, allowing you to use portions of your favorite songs to alert you to incoming calls. There's even a bundled application that lets you mix your own ringtones with up to 16 tracks. Picture caller ID lets you assign a photo to specific callers. Similarly, a ringer ID lets you assign ringtones to callers. Lastly, users of Bluetooth headsets will find perfect compatibility with the Z710i's Bluetooth radio.
Messaging, Internet, and Tools
The Z710i has all the bases covered when it comes to messaging. Support is built in for sending and receiving text, video, graphics and sound via messages. When used in combination with the phone's built-in camera, MMS opens up a whole new world of messaging fun. Instant messaging is also supported and the phone ships with a built-in email client.
Getting on the Internet is easy with the Z710i, as it supports the GPRS protocol, as well as EDGE high speed data. When used the phone's USB or Bluetooth data capabilities, the phone can be used as a wireless modem for laptops and PDAs. T9 text entry, a technology that makes it easier for people to enter words and text on handsets, is built into the unit--a plus for mobile email and text messaging users. Enjoy a full-featured mobile Web browsing experience, too, with the integrated Netfront browser, which supports HTML.
A number of handy software tools are bundled with the Z710i including a voice memo recorder, a calculator, a calendar, and an alarm clock with a timer and stopwatch. Sony Ericsson Sync Station software lets you easily synchronize your Microsoft Outlook calendar, contacts, notes and tasks with your phone.
Imaging and Entertainment
The Z710i was designed for serious fun. The built-in 2.0 megapixel camera captures stills and video--and playback of video or still pictures is only limited to the memory card size. If you run out of room, don't worry--just drop another memory card into the Z710i's built-in memory card slot. Meanwhile, the Z710i media player handles a number of different music file formats, such as MP3, AAC, AAC+, and eAAC+. Transfer tracks from your CDs via your computer to your phone. There's even an integrated FM radio for listening to your favorite stations on the go.
Java support is built into the Z710i, making it a powerful gaming companion for both online and offline games. The Z710i also sports an airplane mode feature, which allows you to safely use the non-wireless functions of a phone (such as music, games or organizer functions) on an airplane during flight.
Vital Statistics
The Sony-Ericsson Z710i weighs 3.56 ounces and measures 3.46 x 1.89 x 0.96 inches. Its lithium-ion battery is rated at up to 10 hours of digital talk time, and up to 350 hours of digital standby time. It runs on the GSM/GPRS/EDGE 850/900/1800/1900 frequencies. This phone comes with a one-year warranty from a third party provider.
Customer Reviews

can take lots of abuse
I bought this phone from another site, about 15 months ago. I have none of the battery life (and other) issues that are mentioned in the other reviews thus far. This is my first Sony product, and I must say, I am thoroughly impressed.
BATTERY LIFE: After more than a year, the battery still holds charge for about a week with minimal use. I like that it can tell you what percentage your battery life's at, with the push of a button.
DURABILITY: I have dropped this phone about half a dozen times (a few of those times being on pavement or concrete), and the casing shows none of it. The silver buttons on the outside of the phone and the silver around the camera lens are rather scratched up, but the black casing and outside screen are close to pristine. Not to mention, the phone still works.
CAMERA: The camera's pretty decent for a camera phone. Occasionally, when the stars align and the lighting is perfect, the quality's actually good enough for a 4x6 print.
MUSIC: I haven't used the music-related features very often. I put a couple music albums on the phone, set one of the songs to be my ringtone, occasionally use the radio, tried out the buttons on the outside of the phone, and that's about it.
RECEPTION: The reception on this phone is the best I've had on a cell phone. I don't know if that should be attributed to the phone or my service provider (T-mobile), but it's amazingly good.
There are exactly 2 things I dislike about this phone, and both are very minor. First, I wish it took microSD instead of Sony's Memory Stick Micro. Second, it came with exactly 1 game. More would've been nice.

Worst phone I have ever owned.
Worst phone and worst customer service (from Sony Ericsson) I have ever experienced.
I bought this phone due to its alleged very long talk time and standby time.
Discovered talk time under two hours and stand by less than 48 hours, in first phone and the replacement phone (First phone promptly replaced by vendor without question).
Three batteries later, same issue, and now past 30 day guarantee period.
Sony Ericsson suggested updating sotware, which did not help.
Now suggesting repair rather than prompt replacement of a product that never lived up to marketing hype.
I will never by another phone from this company.

My second z710i
This is the second z710 I've bought from Amazon, to replace the one I dropped and broke. My first one was awesome, everything I wanted in a phone.
This second z710 appears to have shipped with the wrong battery (BST-36 instead of BST-37); thus, the though the battery fits and works for a while it does not hold a charge.
As the above reviewer noted, the back cover seems to be about a fraction of a millimeter the wrong size. It doesn't close properly and arrived with some sort of dried goo on it. The back cover is also a slightly different color and seems to be made of an inferior plastic. My previous z710 was so elegant and well-engineered; I'm disappointed.
Sony Ericsson Update Service refuses to recognize this phone; I wonder it's because of the battery, of if the firmware is pirated. I have to wonder if I have received a counterfeit z710. I'm just saying...

buyer beware
This is my second Sony phone. The first died after a short life of only 13 months. I thought maybe I had a bad phone. I just received this phone in the mail a few days ago. The charger does not work. The memory card is not included. The back cover does not close properly. The upper left button that is used to "send" a message is somewhat jammed although it is functional. Moral of the story: I'm sending it back and buying a Samsung. Sony makes great TVs. Samsung makes great phones. I had a Samsung before my first Sony, and the Samsung lasted 3 years. I wouldn't purchase this phone or any other phone made by Sony. Great concept, sounds cool, but a total waste of your money and time.
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