The Z750a has an external display, but you only see it when your phone is in use. AT&T Service Compatible with AT&T's 3G mobile broadband data network, which is available in most major metropolitan areas, this phone offers tri-band HSDPA/UMTS connectivity (850/1900/2100 MHz). You'll get average download speeds of around 1.5 megabits per second (Mbps) and speed bursts up to 3.6 Mbps, as well as simultaneous voice and data services. Multi-task while you are on a call--search for movies times, look up directions, or send messages. You'll also get more done with faster access to email, and enjoy speedy Internet connectivity with richer graphics and easy-to-use personalization options.
In areas where 3G network access is not available, you'll continue to receive service on the AT&T EDGE network, which offers availability in more than 13,000 US cities and along some 40,000 miles of major highways. Providing average data speeds between 75-135Kbps, it's fast enough to support a wide range of advanced data services, including high-speed color Internet access and email on the go. You'll also enjoy quad-band GSM connectivity, which allows you to make calls in more than 190 countries and access data applications in the more than 135 countries where AT&T offers international data roaming.
With 3G connectivity, you'll be able to access AT&T's Cellular Video (CV) service and the Internet while on the go. Cellular Video features content from CNN, The Weather Channel, iFilm, Comedy Central and exclusive premium content from HBO and much more. It also features AT&T Mobile Music, which provides access to Napster and eMusic subscription services as well as Music ID song-recognition software, music videos and The Buzz music news portal. The handset is XM Radio Mobile-capable, so you can enjoy streaming live digital radio as well. (An AT&T MEdia Max subscription bundle is recommended for accessing AT&T's Internet, video, and music services.)
The Z750a 3G phone is compatible with AT&T Music, Cellular Video, and XM Radio services. Phone Features The Z750a has an internal 2.2-inch LCD that provides 262K colors for excellent depth and a 240 x 320-pixel resolution. The external monochrome OLED display has a resolution of 36 x 128 pixels, and it displays current time as well as battery level. It also offers four-way toggle navigation surrounded by a backlit ring, a backlit numeric keypad with tactile feedback, two soft keys, and a Web browser shortcut key. The phone has a slot on the left spine for using Memory Stick Micro (M2) media and a dedicated music player button on the right side. This phone can store up to 1000 contact entries, each with fields for five phone numbers as well as the ability to save callers to groups and pair contacts with a ringtone.
While this isn't one of Sony Ericsson's Walkman digital audio player-equipped phones, the Z750a does offer multiformat music playback that includes MP3, WMA (unprotected), and AAC, as well as such features as shuffle and loop modes, stereo widening, and an equalizer. Additionally, you'll be able to purchase and download real-music ringtones (72-chord polyphonic) in a variety of formats (MP3, MP4, AAC, AAC+, eAAc+, WMA, WAV). You also get a built-in FM radio with RDS, which displays the name of the currently playing song (when tuned to compatible radio stations). With the TrackID service, you can identify any song that you can hear by just recording a snippet of sound using the microphone. It also includes a flight mode that lets you keep listening to tunes with the phone's network connectivity turned off.
This phone provides Bluetooth version 2.0 wireless connectivity with EDR (enhanced data rate), and includes profiles for communication headset, handsfree car kits, and audio/video remote control. With the A2DP Bluetooth profile, you can stream your music to a pair of compatible Bluetooth stereo headphones. You can connect your laptop (either via Bluetooth or wired USB) and enjoy dial-up networking--surf the Internet, send email, and access files from a server.
The built-in 2.0-megapixel camera captures stills in three resolution modes (1600 x 1200, 1280 x 960, and 640 x 480 pixels), and it includes a number of options to help you create great shots, including a 2.5x digital zoom, two quality settings, three color effects, night mode, and white balance and brightness adjustments. You can also shoot video to your heart's delight (as long as you have space on your memory card), or limit it to 25 seconds for sending to friends and family via MMS. It provides support for PictBridge technology so you can print your photos without the need of a PC (either using USB or Bluetooth), and this phone makes it easy to send snapped photos directly to a blog or an online photo, complete with text.
The phone also ships with a built-in email client with support for POP3 and IMAP4 protocols (with easy setup for receiving AOL, MSN and Yahoo! mobile mail), while the included Access NetFront Web Browser allows you to surf full HTML web sites. It also supports RSS feeds, allowing you to use your phone to view up-to-the-minute news and other content from selected Web sites and blogs. Just subscribe to the feed and let it come to you. Support is built in for sending and receiving text, video, graphics and sound via messaging, and you can also chat via instant messaging with built-in support for AIM, Yahoo! and MSN chat services.
The Z750a is one of Sony Ericsson's first mobile phones based on Java Platform 8 (JP-8), which supports a range of new Java programming features including instant messaging/chat and presence based functionality, banking and payment transactions, user identification and authentication through secure encryption technology, mapping, and other location-aware applications.
Other features include: USB 2.0 wired connectivity with mass storage capability PIM functions including calendar, tasks, notes, alarm, calculator, stopwatch, and timer T9 text entry technology Vibrating alert Speakerphone Voice recorder SMS (text) and MMS (multimedia) messaging Hearing aid compatibility: M3, T3 Bluetooth profiles: A2DP (stereo music streaming), AVRC (remote control), HFP (hands-free car kits), HSP (communication headsets), BIP (for sending images to another device), DUN (dial-up networking), FTP (file transfer), HID (support for mice or joysticks), OPP (object push for business cards or calendar items), PAN (personal area networking), PBA (transfer contacts)
Vital Statistics The Z750a weighs 3.88 ounces and measures 3.83 x 1.93 x 0.79 inches. Its 950 mAh lithium-polymer battery is rated at up to 9 hours of talk time, and up to 400 hours of digital standby time. It runs on the 850/900/1800/1900 GSM/GPRS/EDGE frequencies as well as the HSDPA/UMTS 850/1900/2100 network.