I founded some camera for Syma X5C-1. This is the link: http://www.ebay.com/itm/New-Syma-X5C-1-X5SC-5-8G-FPV-Camera-/111998029475?hash=item1a139a4ea3:g:r7kAAOSwq19XDSuJ Someone know something about this? Can I easy fix them to Syma, and is it better than this stock camera http://www.ebay.com/itm/2015-RC-Quadcopter-drone-2-0MP-Camera-for-Syma-X5C-X5SC-X5C-1-spare-parts-/182011791229?hash=item2a60bf877d:g:g18AAOSwX~dWsaJa ?
The first camera you mentioned is normally sold with the FPV kit for Syma. I own both models of camera and I find the quality of video and photo is comparable for both models. If I were you, I would buy the whole FPV kit. I like the FPV kit because you can see what you are filming or try a bit of FPV flying. The kit is affordable on sites like Banggod or Gearbest. It comes with the camera and a screen. The good thing about the camera is that it has its own battery so you don't use the quad battery when you make a video.