There are many smart phones launched by Samsung. I have bought Samsung galaxy S duos before 1 month. It was running smoothly till 20 days.
But from last 5 days its started legging.The camers of phone is very good and the flash of this phone I must say no other company gives such good flash.
The phone is getting very slow. It takes more time to open apps or switching apps.The company written on the box that mobile has 8GB of internel storage but there is only 2.5 GB hardly we get for use. so I suggest that not to buy any samsung phones if your budget is below 10000.