It's also under the minimum EU demands, but I guess they found a loophole or they just hope they won't be fined.
Same in Québec, where the legal minimum for guaranteeing against defects is 1 year (enforced at both the manufacturer and seller).
Usually the terms will use wording like "30 days or the minimum applicable by law".
EU doesn't impose a minimum manufacturer warranty period. What it imposes is a _seller_ guarantee, for which the manufacturer's limited warranty conditions don't really apply directly anyway. Many companies will offer a 2-year warranty because they know that's how long they need to support the buyer anyway, but I've often seen conditions like "2 year warranty for EU, 1yr in US". Anyway, iiuc pebble is not doing anything illegal as long as they don't refuse seller warranty for these 2 years