Update (9/25 9:15am): Amazon is now offering GoPro’s HERO4 Session Action Camera + a free $40 gift card for $299 shipped.
Adorama is offering the GoPro HERO4 Session Action Camera for $299 shipped. That’s $70 off the regular price/Amazon listing, $31 less than our previous mention and the lowest we’ve seen. It’s the smallest, lightest GoPro yet and it’s waterproof to 33 feet (10m) with no need for housing. It features an “easy one-button control, power up and capture videos or photos with a single press”. At Amazon, shoppers gave it 3.8/5 stars and you can find GoPro accessories there as well.