If you'd told me just a few years ago that OnePlus would one day make the best Android tablet, I'm not sure that I would have believed you. Sure, it had a solid debut with the OnePlus Pad, but that sub-$500 slate felt more like proof that OnePlus could venture outside the flagship killer realm than it could actually make a top-tier tablet. It packed near-flagship specs and an eye-catching brushed design, but I was never quite sure who it was right for.