Why buy a dual SIM phone?
A dual SIM phone lets you pick and choose among the best mobile plans. They come with two separate SIM slots, allowing you to make and receive phone calls and text messages from two different numbers as well as two different mobile carriers, if that's what suits you.
Dual SIM phones have improved markedly from the first basic talk-and-text models with the arrival of the Android operating system. Now you'll get features such as 3G and Wi-Fi connectivity, Bluetooth, GPS and most of the bells and whistles you'd expect from a smartphone. One notable omission is support for 4G networks, which may be an issue for some users, particularly if you download large files or stream video on your phone.
Two SIMs, lots of phone plans
Depending on how you like to communicate, a dual SIM mobile will let you have the best of all possible deals by letting you mix and match your phone plans, choosing the best value options.
Unfortunately, Telstra, Optus and Vodafone seem reluctant to offer a mobile solution that allows you to choose another carrier to make savings under certain scenarios, like a plan that lets you make cheaper calls at night. However, the models tested are readily available online or from major retailers, unlocked and ready to use. Sites such as Mobileciti or Yatango have a selection of dual SIM mobiles available, as well as local retailers such as Dick Smith and JB Hi-Fi.