I believe that the GoPro HERO4 Session is a good camera for customers looking for a lightweight, simple and waterproof camera. It take video/photos with a push of a button. It also is durable. No need to by a case to protect it because it is built with one. It has a Multi-Shot mode where multiple shots can be taken, depending on the different setting you set it on. It does not have a built in screen.However, you can watch your videos on the app by connecting to the built in WIFI in the camera
I actually have this product. I take it with me when I do ice skating and planning to use it in the summer.I even took it to a WWE event and the shots were amazing.
Here is the product page: https://shop.gopro.com/cameras/hero-session/CHDHS-102.html
Here is their demographics: http://investor.gopro.com/secfiling.cfm?filingid=1500435-15-7&cik=