Pebble smartwatch is now available on Amazon and there is $20 off on getpebble.com. The Kickstarter-funded Pebble smartwatch has hit Amazon and what's more, if Black Friday shoppers purchase the device directly from the maker's website, they get $20 off! E-retailer Amazon joins the ranks of Best Buy and AT&T, which also retail the smartwatch, apart from Pebble.