I bought 3 iPhone 6s plus and I'm using iPhone 4s right now. I want to give iPhone to my mom and my GF. Can I hand carry all of them?
It doesn't matter whether you transport goods in your carry-on or checked luggage. All of it is subject to possible declaration to customs officials. The current form says that all gifts and souvenirs over 200 RM must be declared.
As of 9 October 2015, I'm unable to access the main website for Malaysian customs to try to find the amount of duty that might be levied.