UK sales of smartwatches surged after the release of the Apple Watch last April. Ownership of smartwatches in the UK has more than doubled year-on-year, from 320,000 to 720,000, according to research from YouGov. Its quarterly study found that over the past three months, total wearable-device ownership has grown from 2.85m to 3.6m. The wearables sector could receive a further boost on Monday, when Apple is expected to unveil the next iteration of its smartwatch.