Nope.. u better enable your google sync for contacts and the contacts will be secured for life (remember to set your phone to add all contacts to google so that it stays sync forever)
Or else use any third party android app to store contacts and messages. Search in play store.
You can directly download the mobile version of Xperia Transfer, then install it on your Samsung and Sony phone. It's a free app designed by Sony. Afterwards, please start the Xperia Transfer on your phones for transferring contacts from Samsung to Sony Ericssion. It's free.
Or you can use a phone to phone data transfer tool such as Gihosoft mobile transfer to help you do the data transfer.