Mix and match plans
People can use different plans on the same device to save money. Sometimes one operator might offer cheaper international calls, for example, while another is better for use at home. Now people can fit two SIMs into the same phone to get the best value for every call.
Reduced roaming
If you frequently travel between countries, then paying roaming charges while you’re abroad can be very expensive. With a Dual SIM phone, you can set up one account for your home country and a completely different one for another country.
Mix business with pleasure
Many people want separate work and home numbers. Some people are issued a phone by work and need another device for personal calls. But having to carry two different mobile phones is a pain. Dual SIM gives you the convenience of two numbers without the extra weight.
Sharing your phone
In some countries, it’s common for phones to be shared among family members. With Dual SIM devices, users can have different plans to suit their priorities and budget, and different address books too, in many cases.
Data and Voice
Operators offer many different plans. Some of these offer inexpensive data downloads; others are intended for people who mostly just want voice and SMS. Using two different SIM cards: one for data, the other for voice calls can help people get more for their money.
Guaranteed coverage
In some countries, mobile networks only cover some regions – and in some areas, there might only be one network available. While your main SIM card might work with the network you use at home, you might have a backup for when you’re travelling.
Any more uses that struck you as a good idea?