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AT&T Z331

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AT&T Z331

Also known as ZTE Z331 User Rating - 8

Posted: 14 Oct 2011
Market Status: Released US carrier availability: AT&T - Discontinued

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Design
Device type	Feature phone
Form factor	Clamshell
Dimensions	3.86 x 2.03 x 0.67 inches (98 x 52 x 17 mm)
Weight	3.17 oz (90 g) the average is 4.4 oz (126 g)
Design features	Numeric keypad, Soft keys, D-Pad (2)

Display
Physical size	2.4 inches
Resolution	240 x 320 pixels
Pixel density Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.	167 ppi
Technology Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.	TFT
Colors	262 144
Additional display Additional display - Shows specs of the phone's additional display	Color, OLED
Resolution Resolution - Refers to the width and the length od the additional display	128 x 128 pixels
Physical Size	1.46 inches

Battery
Talk time	3.00 hours the average is 10 h (626 min)
Stand-by time	8.3 days (200 hours) the average is 18 days (435 h)
Capacity	950 mAh
Type	Li - Ion

Hardware
Built-in storage	0.14 GB
Storage expansion	microSD, microSDHC up to 8 GB

Camera
Camera	3 megapixels
Camcorder	Other, 176 x 144 pixels

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Multimedia
Music player
Supported formats	MP3, AAC+
Video playback
Supported formats	MPEG4, H.263, H.264
Radio	FM

Internet browsing
Browser	Opera Mini, supports: supports: XHTML, WAP, CSS

Technology
GSM	850, 900, 1800, 1900 MHz
UMTS	850, 1900, 2100 MHz
Data	HSDPA 3.6 Mbit/s, UMTS, EDGE
Global Roaming	Yes

Phone features
Organizer	Calendar, Alarm, Calculator
Messaging	SMS, MMS, Predictive text input
E-mail	IMAP, POP3, SMTP
Instant Messaging	Yes
JAVA JAVA - J2ME (Java 2 Platform, Micro Edition) is a technology that allows programmers to use the Java programming language and related tools to develop programs for mobile wireless information devices such as cellular phones and personal digital assistants (PDAs). J2ME consists of programming specifications and a special virtual machine, the K Virtual Machine, that allows a J2ME-encoded program to run in the mobile device.	Midp 2.0, CLDC 1.1

Connectivity
Bluetooth	2.0
USB	USB 1.1

Other features
Notifications	Vibration, Silent mode, Speakerphone
Hearing aid compatibility	M3, T4
Other	TTY/TDD

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