A thumb keyboard, or a thumb board, is a type of

keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Mus ...

commonly found on PDAs,

mobile phone A mobile phone or cell phone is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones ( landline phones). This rad ...

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 Computer keyboard keys#Types, keys on the top letter row of the keyboard: . The QWERTY design is based on a layout included in the Sh ...

. 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 recognition, handwriting and speech ...

using the available thumbs, while holding the device.

Devices with thumb keyboards

BlackBerry BlackBerry is a discontinued brand of handheld devices and related mobile services, originally developed and maintained by the Canadian company Research In Motion (RIM, later known as BlackBerry Limited) until 2016. The first BlackBerry device ...

*Some Nokia phones including

Nokia 6800 series The Nokia 6800 series are a selection of Nokia Series 40 phones with an unusual fold-out QWERTY keyboard. This type of keyboard is also used in the more recent Nokia Series 60 Symbian-based Nokia E70. These phones were marketed as "messaging devi ...

HTC TyTN The HTC TyTN (also known as the HTC Hermes and the HTC P4500) is an Internet-enabled Windows Mobile Pocket PC PDA designed and marketed by High Tech Computer Corporation of Taiwan. It has a touchscreen with a left-side slide-out QWERTY keyboar ...

HTC TyTN II The HTC TyTN II (also known as the HTC Kaiser, the HTC P4550, and the HTC 8925) is an Internet-enabled Windows Mobile Pocket PC smartphone designed and marketed by HTC Corporation of Taiwan. It has a tilting touchscreen with a right-side slide-o ...

HTC Touch Pro The HTC Touch Pro (also known as the HTC Raphael, AT&T Fuze, XDA Serra, or MDA Vario IV) is a smartphone from the ''Touch'' series of Windows Mobile Pocket PCs designed and marketed by HTC Corporation of Taiwan. Released in 2008, it is an enhanced ...

, HTC Touch Pro2 *Some

Sony is a Japanese multinational conglomerate (company), conglomerate headquartered at Sony City in Minato, Tokyo, Japan. The Sony Group encompasses various businesses, including Sony Corporation (electronics), Sony Semiconductor Solutions (i ...

CLIE PDAs *Some

Hewlett Packard The Hewlett-Packard Company, commonly shortened to Hewlett-Packard ( ) or HP, was an American multinational information technology company. It was founded by Bill Hewlett and David Packard in 1939 in a one-car garage in Palo Alto, Californi ...

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 ...

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 **Palm oil * Several other plants known as "palm" Palm or Palms may also refer to: Music ...

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

References

{{Reflist Computer keyboard types