A thumb keyboard, or a thumb board, is a type of keyboard commonly found on PDAs,

mobile phone A mobile phone, cellular phone, cell phone, cellphone, handphone, hand phone or pocket phone, sometimes shortened to simply mobile, cell, or just phone, is a portable telephone that can make and receive calls over a radio frequency link whi ...

s, and PDA phones which has a familiar layout to an ordinary keyboard, such as

QWERTY QWERTY () is a keyboard layout for Latin-script alphabets. The name comes from the order of the first six keys on the top left letter row of the keyboard ( ). The QWERTY design is based on a layout created for the Sholes and Glidden t ...

. The inputting surface is usually relatively small, and is intended for

typing Typing is the process of writing or inputting text by pressing keys on a typewriter, computer keyboard, mobile phone or calculator. It can be distinguished from other means of text input, such as handwriting and speech recognition. Text can b ...

using the available thumbs, while holding the device.

Devices with Thumb Keyboards

BlackBerry The blackberry is an edible fruit produced by many species in the genus ''Rubus'' in the family Rosaceae, hybrids among these species within the subgenus ''Rubus'', and hybrids between the subgenera ''Rubus'' and ''Idaeobatus''. The taxonomy ...

*Some Nokia phones including Nokia 6800 series * HTC TyTN, HTC TyTN II,

HTC Touch Pro The HTC Touch Pro (also known as the HTC Raphael, AT&T Fuze, XDA Serra, or MDA Vario IV) is a smart phone from the ''Touch'' series of Internet-enabled Windows Mobile Pocket PC smartphones designed and marketed by HTC Corporation of Taiwan. It i ...

, HTC Touch Pro2 *Some

Sony , commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professiona ...

CLIE PDAs *Some Hewlett Packard PDAs (HP iPaq 4350/4355/63XX series) *Microsoft Xbox 360 Controller "Chatpad" * Motorola MPx220 *

Palm Treo The Palm Treo (stylized as Trēo) is a discontinued line of smartphones originally developed by Handspring, which was bought by Palm, Inc. They were then manufactured and maintained by Palm, Inc. Treos had a number of integrated features such a ...

smartphones, with the exception of the Treo 180g *

Palm Palm most commonly refers to: * Palm of the hand, the central region of the front of the hand * Palm plants, of family Arecaceae **List of Arecaceae genera * Several other plants known as "palm" Palm or Palms may also refer to: Music * Palm (ba ...

Tungsten C *Samsung products including Samsung Blackjack (SGH-i607) * Motorola Q * Wibrain: B1, B1L, B1H, I1 Computer keyboard types