Microsoft has been making mobile operating systems for smartphones since 2000. At the end of 2010, Microsoft released Windows Phone 7, replacing Windows Mobile 6.5.3. This newest Microsoft mobile operating system is designed for phones that are rich in multimedia and can be used to access Xbox LIVE video games. The Microsoft Office Mobile application is compatible with Microsoft Office documents used on most computers. Samsung, LG, Dell, AT&T and T-Mobile offer phones that use the newest Microsoft mobile operating system and are compatible with the AT&T or T-Mobile cellular phone networks.
The Samsung Focus is the thinnest and lightest Windows phone available in 2011. This phone features a 4.0-inch diagonal screen with 480-by-800 pixel resolution for watching videos or connecting to Xbox LIVE. The Samsung Focus uses a 1 GHz Qualcomm processor. Its 5MP camera also offers 720p HD video and a power LED flash. The battery on the Samsung Focus lasts for 15 days on standby and seven hours while talking. It uses the AT&T network.
The LG Quantum features a full QWERTY keyboard. Its Play To software lets users send photos and videos to a home entertainment system. It offers a 480-by-800 pixel resolution, 3.5-inch diagonal screen. The LG Quantum's built-in 5MP camera offers 720p HD video, autofocus and the capability to take panorama pictures. The battery provides up to six hours of talk time and lasts 14.5 days on standby. The LG Quantum uses the AT&T network.
Dell Venue Pro
The Dell Venue Pro features a vertical QWERTY keyboard and a 480-by-800 pixel resolution, 4.1-inch diagonal screen, which is scratch and shatter resistant. Its built-in 5MP autofocus camera also shoots 720p HD video. The Dell Venue Pro uses a 1 GHz processor and is available with either 8GB or 16GB of internal memory. The Dell Venue Pro is available only from Dell. It uses the T-Mobile network.
T-Mobile HTC HD7
The T-Mobile HTC HD7 is available from T-Mobile. It features a 4.3-inch diagonal display with 480-by-800 pixel resolution. This makes it the largest screen on a Windows phone in 2011 for watching Netflix or T-Mobile TV. The built-in 5MP camera also records 720p HD video and uses a dual-LED flash. The battery can last for up to six hours while talking or up to 14 days in standby mode. The HTC HD7 uses the T-Mobile network.
AT&T HTC Surround
The AT&T HTC Surround features slide-out speakers with surround sound. The phone also includes a kickstand designed to be used for hands-free viewing. It uses a 1 GHz Qualcomm processor and includes 16GB of internal memory. The 5MP camera includes autofocus, built-in flash and the capability to record 720p HD video. The battery on the HTC Surround lasts up to four hours while talking and up to 11 days on standby mode. The HTC Surround uses the AT&T network.
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