In particular the Lenovo Yoga Book is excellent design and build quality. You can get new ones with Android (rather than Windows) on ebay for about $230. The device is a 2-in-1 with keyboard permanently attached, which some will find a plus and some a con. 4GB RAM, 64GB storage, 1.5 lbs, premium build, upgradeable to Android Nougat:
https://arstechnica.com/gadgets/2016/12/lenovo-yoga-book-rev...