I have booked a flight to the Philippines and I have a layover of 3h 30m in Hong Kong Airport (arrival an departure in Terminal 1). So I looked at the shops in that terminal to see if I can buy a GoPro camera there (it looks they are cheaper in Hong Kong), but I got confused with the map of the terminal.
So far I found the shops that sells eletrical equipment: http://www.hongkongairport.com/eng/shopping/insideshopping/t1/audio/list.html
and also a PDF with all the shops in the map: http://www.hongkongairport.com/leaflet/fun_map.pdf
But I don't know what does it mean those restricted/non-restricted areas. Are those "non-restricted areas" outside the passport control? I don't need to go through the passport control, since I'm not staying in Hong kong and the layover is not too long. In case that's the non-restricted, can I still go there to have a look or do I have to stay in the "restricted area"?