What is the purpose and benefit of dual SIM cards in a smartphone?
Wondering about the presence of 2 SIM cards on a smartphone? Check out responses from experts on this page to resolve your query.
I am a firt-time smartphone user. The Xiaomi Redmi Note 3 I have purchased has dual SIM cards.
I would like to know:
1. What exactly is the purpose of 2 SIM cards?
2. Can both SIM cards be used simultaneously? If yes, then how and would that affect the battery life of the smartphone?
3. Suggest how to effectively use both the SIM cards.