The Sony CLIÉ PEG-TJ37 is a personal digital assistant

Personal digital assistant

A personal digital assistant , also known as a palmtop computer, or personal data assistant, is a mobile device that functions as a personal information manager. Current PDAs often have the ability to connect to the Internet...

 manufactured by Sony

Sony

, commonly referred to as Sony, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan and the world's fifth largest media conglomerate measured by revenues....

 that was built to replace the TJ-35

Sony CLIÉ PEG-TJ35

The Sony CLIÉ PEG-TJ35 was an aluminum cased personal digital assistant as part of the CLIÉ TJ series released by Sony in 2003. It is a higher-end edition of the PEG-TJ25 with audio playback functions. It also includes Graffiti 2 input. The TJ35 has 32 MB internal Flash memory - 23 MB could be used...

 and is a higher end version of the TJ-27 in the CLIÉ

CLIÉ

The Sony CLIÉ was a series of personal digital assistants running the Palm Operating System developed and marketed by Sony from 2000 to 2005. The devices introduced many new features to the PDA market, such as a jog-wheel interface, high-resolution displays, and Sony technologies like Memory Stick...

 TJ series. While the TJ-27 had 320x320 color display, a built-in 640x480 camera, and Graffiti 2

Graffiti 2

Graffiti 2 is a version of the Palm OS handwriting system, Graffiti, that was introduced in 2003. In January of that year PalmSource announced the change, and explained that Graffiti 2 was based on Jot by Communication Intelligence Corporation , and would replace the original version of Graffiti...

 input, the TJ-37 added built-in Wi-Fi

Wi-Fi

Wi-Fi or Wifi, is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. An access point has a range of about 20...

 and MP3

MP3

MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression...

capabilities into the same package. Both are run on a 200 mHz processor.