Millions will have to upgrade smart phones or risk being locked out of bank accounts

HOUSEHOLDS are being forced to upgrade to expensive smartphones to access their bank accounts as customers are increasingly being pushed towards app-based banking.

Banks are encouraging customers to bank online or via their apps as they shut swathes of branches across the UK to cut costs.

But an investigation by The Sun has found that a number of high street lenders require their customers to have at least an iPhone 6S ...