I'd love a successor to Pebble which doesn't require an account. There are a number of options, but my issue is that most require creating an account with vendor, and app integration with - no doubt - copiuos data harvesting and reselling. Many are absurdly expensive.

There are several cheap options on Alibaba.

Goodreader.com lists a number of expensive e-ink watches, some of which look quite nice.

But I've got my eye on Watchy (github, old review); it was introduced a couple of years ago and is still being updated. It's also available from a couple of vendors, including preassembled through Amazon.