Clamshell-style folding screens have made flip phones cool again – these are the best flip phones on sale, and the ones to look out for ...

Flipkart has significantly reduced the price of the Motorola Razr 40 Ultra 256GB during its Republic Day sale. You can purchase this smartphone for less than half the original price.

but then can be flipped open (hence 'flip phones') to form a more regular-sized screen in a more traditional phone-shaped design. They're very different propositions, both of which we'll get into ...