How to painlessly switch iPhones and keep all of your data

To switch from one iPhone to another, you should back up everything to your iCloud account and then restore it on the new iPhone.
PC Magazine

Using Two SIM Cards Is Easy and Can Save You Money. Here's How to Do It

Using two SIM cards, or enabling a dual-SIM setup, can be helpful when you need two separate phone plans on a single device. It easily lets you consolidate personal and work numbers on one phone, for ...
Digit

iPhone Air doesn’t support physical SIM: How to get, install and transfer eSIM in India

Apple’s latest iPhone Air has taken a bold step forward in mobile technology – it’s an eSIM-only device. That means there’s no slot for a physical SIM card, anywhere in the world, including India. For ...