Black Friday sales in the UK reached an estimated £6.5 billion spent during the week-long event, with £1.23 billion spent online on Black Friday alone, demonstrating a shift to online shopping. Mobile commerce played a large role, with 73% of shopping searches made on mobile devices. US mobile sales on Black Friday topped $1bn for the first time. John Lewis reported a 6.5% rise in sales for the week, with their biggest ever trading day on Black Friday. Retailers will use Black Friday 2016 data to better understand consumer behaviors for next year's event.