Credit: OnePlus WeiboTL;DROnePlus’ upcoming Ace 6 Ultra smartphone will double up as a gaming handheld thanks to a snap-on controller.The controller adds physical buttons, ultra-fast response times, and a magnetic cooling fan.Previous leaks showed a very different OnePlus gaming handheld, so a separate device could still be in the works.OnePlus has officially confirmed that the upcoming Ace 6 Ultra isn’t just a gaming smartphone, but the device can also transform into a gaming handheld.