The familiar story with Xteink’s tiny e-readers plays out once again with its new X4 Pro: upgraded hardware held back by frustrating software. The company’s latest tiny e-reader adds a touchscreen and lighting, so choosing it over a Kindle or a Kobo feels like less of a compromise — until you use it. The new touch controls and some welcome software updates do manage to make the X4 Pro easier to use, but frustrations still abound. There’s a happier ending to the story this time,…


