Just a little intel strictly from experience, I use cell cams for business and recreation mostly in areas that have moderate to low cell service. I thought the SP Link S would be the way to go so I bought three of them almost two year ago at first they did fine although the picture quality is not great all I needed to do is tell me when hogs were in an area. About a year ago they had a server crash which really negatively effected the operation of the camera. SP wont tell you this but I believe they out sold their ability to support the back end transmission since they flooded the market with value based cameras and the Cell Link. So I didn't want to take a chance on another China made camera so I bought Reconyx to replace the SP, the only positive SP had was the solar charger so I bought the solar package Reconyx offers and haven't looked back. To prove the difference in the two I put both on the same tree or T post, Reconyx blew SP away with better picture quality and transmission.