Due to popular demand, and to meet the competition of Sony's Clie series, it was palmOne's first handheld to feature a 320x320 pixel LCD (also known as high-resolution or high-density). It was also their first to have built-in Bluetooth, a 144mhz ARM processor, MP3 playing capability, a built-in microphone, and to have a "slider" design that opens up to reveal PalmOne's "Graffiti" area, and closes to make the unit pocket-sized. Its initial price in 2002 was $499, but due to technological advancements, it can now be purchased for around $120.
It was later replaced by the Tungsten T2, which later was replaced by the Tungsten T3. The Tungsten T5 does not follow T-series standards, as it has no slider design and has no built-in microphone.
The Tungsten series, first introduced in Fall of 2002 with the TungstenT, was part of Palm, Inc.'s move away from arcane model numbers, Palm OS 4, and aging Motorola processors.
The TungstenT, introduced in November 2002 and known during development as the M550, was the test balloon for both Palm OS 5 and the entire Tungsten line.
Tungsten T5 The Tungsten T5 is combination of the Tungsten E and Tungsten T3, the first to have a 416 MHz Intel PXA270 processor and sports a 320x480 TFT 16-Bit Color Screen instead of a 320x320 Color Screen with a hard input area.