Amazon is currently discounting the YI 4K Action Camera to just $131. That's good for $39 off of the regular price, and is an even bigger discount than clipping the coupon on the page. If you use the promo code YI4KACTI at checkout. That's a really good price for this action camera and definitely worth picking up.
This Action Camera is definitely a good one to pick up for a number of reasons. Firstly, it is a bit more rugged, so it is able to handle a drop or a tumble. Definitely better than a DSLR would be able too. It is also waterproof, so it can go into the ocean while you are swimming or even surfing. Additionally, this one does record in 4K quality, so you're going to get some great footage out of this one. This Action Camera is able to do regular recording, but also do time lapses and even still photos, so you can get some great content out of this one. Taking a time lapse with this is definitely going to be a lot of fun. YI uses a Sony image sensor here, so you are going to get some great content here, and not worry about whether the camera is actually any good. Since it is using Sony's glass here.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $119/year (or $59/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.