Xteink's Tiny X4 Pro Brings Backlight, but Keeps Some Quirks

Xteink’s X4 Pro is a nearly identical follow-up to the pocket-sized X4, adding an adjustable warm-backlight, a bigger 1,100mAh battery and a touchscreen, all for about $99–$109. It preserves the ultra-compact 4.3-inch form factor (72g) but swaps USB-C for a pogo-pin charging port, and its 219 ppi display plus less-polished software aren’t as refined as Kindle or Kobo. Its main appeal remains size and price in a market dominated by larger devices, though it won’t be for everyone.