Pebble 2, Time 2 + All-New Pebble Core
Neat. A few months ago (before I had to watch money extra carefully), I was looking to make something similar to the Core by removing the strap of the pebble and dremmeling a hole into the mount and making it into a keychain. It seemed like the perfect thing if paired with a bluetooth dumb phone.Everyone called me crazy  for wanting to do it, but it looks like that market actually exists - without a screen, even.