Lumia 520 which was launched in Singapore and became available at major operator Singtel is now one of the top-selling device at the major operator. It seems one of the Lumia devices have always been in the best sellers list at Singtel. Before this it was Lumia 920 and 620 and now the most affordable Lumia 520 is top seller there. It can be booked for free on many monthly plans .
