> From what I've seen, the tiny Palm Phone (from TCL) didn't do very well, but there's still some inventory on Amazon: https://palm.com/pages/product.

The battery is the main issue, about 2h of use or 1 day if in power saving mode with every optimization applied.

It's still good enough as a travel phone, turned on only when I need to call.

The Cyrcle Phone doesn't look small at all, just in a different shape. Also from the video shots it looked like the UI wasn't very well adapted to it's screen shape.

There are tons on ebay for good prices!