The explanation comes from HTC’s Jeff Gordon, the company’s Senior Global Online Communications Manager. Jeff told Techradar: “Because the Chinese version of the One is designed specifically for the smaller Chinese radio bands, we do have additional space inside the device we were able to use for the microSD slot. That space isn’t available in the global version.” They could, of course, just made it a bit bigger, though. So we’re not entirely sure we believe them. More here.