AT&T U2800A

AT&T U2800A is a basic candybar phone with 1.8" color display, HSDPA support, WAP browser and organizer.

Device type: Network technology: Network technology - Referes to the kind of network technology used. Three major technologies are used today - TDMA, CDMA and GSM.

GSM: GSM - Global System for Mobile communications. A world standard for digital cellular communications using narrowband TDMA (Time Division Multiple Access), which allows up to eight calls at a time on 800 MHz and 1800 MHz frequencies. Introduced in 1991. Is the standard most commonly used in Europe and Asia, but not in the United States. GSM phones use a Subscriber Identity Module (SIM) smart card that contains user account information. Any GSM phone becomes immediately programmed after plugging in the SIM card, thus allowing GSM phones to be easily rented or borrowed. SIM cards can be programmed to display custom menus for personalized services.GSM provides a short messaging service (SMS) that enables text messages up to 160 characters in length to be sent to and from a GSM phone.

UMTS: UMTS - Universal Mobile Telecommunications Service, also called WCDMA, is a 3G (Third Generation) packet-based transmission of text, digitized voice, video, and multimedia at data rates up to 2 Mbps. It is based on GSM standard and is supported by major standards bodies and manufacturers

Data: Data - Shows the particular phone's type of data. the major mobile phone data types are GPRS, CDMA2000 1xRTT, EDGE, CDMA2000 1xEV-DO, UMTS, etc.

Design: Design - Phone design type

Form Factor: Form Factor - Refers to the form factor of a phone. The main handset designs are bar, clamshell, slide, swivel

Dimensions: Dimensions - Phone's dimensions

4.37 x 1.84 x 0.56 (111 x 47 x 14 mm)Weight: Weight - Phone's weight

2.68 oz (76 g)
the Average represents the mean value, calculated from all phones, from the last year.">average is 4.4 oz (126 g)Keyboard: Soft Keys: Soft Keys - A multi-function key that uses part of the display to identify its function at any moment

Navigation/Control keys: Display: Display - Phone's main display

Resolution: Resolution - Refers to the width and the height of the display

Physical Size: Colors: Colors - Shows the number of colors that the display supports

Capacity: Capacity - Shows the battery capacity in mAh

Talk time: Talk time - Maximum talk time in hours

4.30 hours
the Average represents the mean value, calculated from all phones, from the last year.">average is 8 h (463 min)Stand-by time: Stand-by time - maximum Stand-by time in hours

461 hours
the Average represents the mean value, calculated from all phones, from the last year.">average is 400 h (17 days)Internet Browsing: Internet Browsing - Capability to access special Internet sites using the mobile phone

SMS: E-mail: E-mail - Shows if the phone supports email features

USB: Type: Features: Features - Universal Serial Bus - is a plug-and-play interface for connection a computer and add-on devices such as joysticks, keyboards, wireless phones, scanner, cameras etc. USB supports hot-swap (ability to add a new device without having to reboot the computer). USB supports data speed of 12 megabits per second.

TTY/TDD: TTY/TDD - Special feature enabling deaf/hard of hearing or speech individuals to communicate with hearing individuals.

Hearing Aid Compatibility: To see the full specifications with in-depth details click here.

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Technology: GSM (850/900/1800/1900)Data: GPRSDisplay: 2.00 inches, 240 x 320 pixelsBattery: 3 hours of Talk Time, 200 hours of Stand-by Technology: GSM (850/900/1800/1900),  UMTS (850/1900/2100)Data: EDGE, UMTSDisplay: 1.80 inches, 128 x 160 pixelsBattery: 4.3 hours of Talk Time, 461 hours of Stand-by Technology: GSM (850/900/1800/1900),  UMTS (850/1900/2100)Data: EDGE, UMTSOS: Android 2.2Display: 3.80 inches, 480 x 800 pixels, Capacitive TouchscreenCamera 5 megapixels, 1280x720 (720p HD) videoBattery: 4 hours of Talk Time, 240 hours of Stand-by Technology: GSM (850/1900)Data: GPRSDisplay: 1.80 inches, 128 x 160 pixelsBattery: 5.3 hours of Talk Time, 360 hours of Stand-by Technology: GSM (850/900/1800/1900),  UMTS (850/1900/2100)Data: EDGE, UMTS, HSDPA 3.6 Mbit/sDisplay: 2.40 inches, 240 x 320 pixelsCamera 3 megapixelsBattery: 3 hours of Talk Time, 192 hours of Stand-by Technology: GSM (850/900/1800/1900),  UMTS (850/1900/2100)Data: EDGE, UMTSDisplay: 2.80 inches, 240 x 320 pixels, Capacitive TouchscreenCamera 1.3 megapixelsBattery: 3 hours of Talk Time, 288 hours of Stand-by
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