Samsung’s hotly anticipated smartwatch, the Galaxy Gear, allows users to make calls, receive texts and emails, and take photos.

Samsung has launched a super-size version of its Galaxy Note smartphone, the latest salvo in its battle with Apple for the multibillion-euro handheld market.

Samsung Electronics has unveiled a new top-of-the-range Galaxy smartphone in London, updating the most direct rival to Apple’s iPhone with a larger touch screen and more powerful processor.