For Prime Day Amazon is offering a whopping 43% discount on the Forerunner 255, bringing its price down to just $199 from its regular price of $349. This is the company’s best-selling product, and it has a 4.7 out of 5 rating and it can be purchased as a limited time offer that does not require a Prime membership.

Holding out for a new shaver? There's plenty on offer, including our top-rated Braun Series 9 Pro+ electric shaver – a hefty £280 off, plus you can pick up the Philips Beard Trimmer Series 9000 for just £85.26 (34% off). As ever, Amazon devices are reduced for Prime Day, including the new Kindle Paperwhite – down from £159.99 to £118.74 (26% off).

Get an advanced fitness trackers and running watches for their lowest prices of the year before Amazon's big shopping holiday.