Sinclair Research to be a hypothetical portable version of the QL similar to "Pandora". In November 2010 Sinclair told "The Guardian" newspaper that he was working on a new prototype electric vehicle, called the X-1, to be launched within a year. "Technology has moved on quite a bit, there are new batteries available and I just rethought the thing. The C5 was OK, but I think we can do a better job now." The two-wheel X-1 was to have been available on July 2011 at the price of £595, but failed to reach production. Sinclair Research Sinclair Research Ltd is a British
Sinclair Executive consumption, creating issues with the reliability. The Executive Memory was launched in November 1973, with the same physical dimensions as the original, but with the ability to memorise subtotals from any number of chain calculations. There were at least 3 versions, including the black and white Type 1, and the Type 2 with a gold keyboard. The Executive Memory sold at the lower price of . Sinclair Executive The Sinclair Executive was the world's first "slimline" pocket calculator, and the first to be produced by Clive Sinclair's company Sinclair Radionics. Introduced in 1972, there were at least two different versions