Bigme B6 Pro

Bigme is allergic to leaving performance on the table. Seventy-ish frames in fast mode on Kaleido 3 looks like a party trick until you scroll a web article and realize the ghosting is actually managed. Cellular means a library without Wi-Fi.

Software polish trails Boox. Support is a forum. If you want a tiny Android color slab and can live with that, nothing else is this quick.