The iPhone 4 is a smartphone device with some PDA-like functions.
Cell phones and PDAs once occupied two fairly distinct categories, but that changed with the advent of smartphones. PDAs started losing ground and the line between the two has become increasingly blurred. Many smartphones now boast PDA-type functions and PDAs are incorporating more smartphone features. Examples include RIM products such as the BlackBerry Torch.
Samsung Epic 4G
TIME's "Top 10 Gadgets" of 2010 gave second place to Samsung's Galaxy S phones. The Epic 4G has all the same features as other Galaxy S phones including a Super AMOLED capacitive touch-screen, but adds a QWERTY keyboard feature too. It's wise to check whether 4G is available in your area before investing in any 4G devices.
HTC Desire Z/T-Mobile G2
This full-featured smartphone ships with the Android operating system. It is fast and offers an easy-to-use QWERTY keyboard. The battery is advertised as offering up to 590 minutes of talk time.
BlackBerry Torch 9800
The BlackBerry Torch has a high resolution multi-touch screen and incorporates a sliding physical QUERTY keyboard as well as an onscreen keyboard option. The sliding keyboard frees up space for a larger screen. It incorporates a 5.0 MP camera.
HTC EVO 4G
The EVO 4G uses the new 4G mobile phone systems. The EVO has some notable features including its 4.3-inch touch-screen display and 8 megapixel camera, which is a comparatively high resolution for such a device.
Google Nexus One
The Nexus One has a 3.7-inch AMOLED display. It uses Android OS 2.1, which is an updated version of the Android operating system. It has a software keyboard rather than a physical keyboard. The Nexus One is made by HTC.
Nokia N8
At 12 megapixels, the Nokia N8's camera is one of the largest smartphone cameras around. It uses the Symbian^3 operating system, which is notable for being open-source, making it easier for users to write their own apps.
T-Mobile myTouch 4G
The myTouch 4G uses the Android 2.2 operating system. It utilizes the HSPA+ system, a bridge technology between current systems and the newer G4. (HSPA+ is not available everywhere so check before purchase.) It boasts both front and back-facing cameras.
The Droid X
The Droid X offers an 8 MP camera and a 4.3-inch display. It has a multi-touch keyboard and offers Swype input, where you sweep a finger or stylus from letter to letter lifting it between words. It offers 480 minutes talk time on 3G.
Apple iPhone 4
The iPhone 4 has a faster custom chip than the previous iPhone, the 3GS. It has 512 MB of RAM; nearly twice that of its predecessor. It is one of the thinnest smartphones.
HTC Advantage X7501
The Advantage comes with both Windows Internet Explorer and Opera installed. It has a detachable magnetic keyboard for use on a flat surface. It also features a finger gesture recognition system.
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