MobilePhoneChecker

Samsung's new Galaxy S9 and S9 Plus smartphones officially launch today. Buying a Samsung is never MoneySaving – but if you're determined to get one anyway, buying the right way instead of getting a standard network contract could save you more than £550 over two years.

We're going to stick our necks out here and assume you've almost all got a mobile. Many can't cope without it. Yet millions are overpaying. Either by letting contracts roll over and effectively paying for a phone you already own, being hounded into expensive upgrades, or just not searching for the best deals.

Apple has launched a new payment system which allows you to spread the cost of a new iPhone 7 over 20 months in instalments – without paying a penny in interest.

Mobile comparison site MobilePhoneChecker has released a first-of-its-kind tool that allows you to compare the cost of different ways of buying a mobile phone – including pairing mix-and-match financing options for a handset with a Sim-only plan.

Tesco Mobile has launched what's believed to be the first so-called 'unlimited' tariff at £30 a month. However, it is far from unlimited, so don't believe the hype.