Amazon.com Inc said customers placed 60 percent more orders worldwide on "Prime Day" on Tuesday, compared with a year earlier when it started the shopping event. The online retailer said it reported the largest daily sales for Amazon devices on Tuesday, helped by heavy discounts. The Fire TV Stick was its best-selling device.

The one-day sale for members of Amazon's $99-per-year Prime subscription service was expected to generate up to $1 billion in sales. However, this figure pales in comparison with the more than $14 billion of total value of goods transacted during Alibaba Group Holding Ltd's Singles' Day shopping festival in China in November.