Gsmarena getting #1 rank in Google always?

      This topic is mainly for bloggers who write about smartphones and tablets.i am sure that you have heard about Gsmarena.com.Well,it turns out that for any mobile name(lets say Nokia asha 308)its their site that ranks first on Google.How do they do it?There are many other sites that could rank well-phonearena,engadget to name a few.

   I am just surprised that they are able to do it every single time.How?Do you guys have any idea about this?