HTC One red was once a flash in the pan on HTC's official website, but recently, the website of Handtec, a British seller, appeared red HTC One again. It is worth noting that the seller explicitly mentioned that the red version of HTC One is a 32G unlocked version, with a price of 498.99 pounds.
The Handtec page of the British seller shows that the red HTC One is not temporarily out of stock, with a price of 498.99 pounds, a tax inclusive price of 598.79 pounds, and a two-year warranty.
The red HTC One is no different from the common color in configuration. It has the same 4.7 inch 1080P screen, Qualcomm Snapdragon 600 processor, and 2G RAM. It should be noted that the website sells the unlocked 32G version.
It seems that Handtec has withdrawn the red HTC One and may launch it.