Amazon Prime Day officially starts tomorrow, June 23, and kicks off a four-day shopping extravaganza that ends at midnight on June 26. As always, there are plenty of cycling deals to be had, and our Amazon Prime Day 2026 needs link bike deals page will be the place to find all the best deals as we find them.
The best cycling tech is a mainstay for all Prime Day sales, and one early deal we've spotted is on one of the best bike computers – the Hammerhead Karoo.
Get the Hammerhead Karoo 3 for just £303.49 at Amazon.
Amazon has dropped the price to a best-of-the-year £303.49, which is a rare reduction on a top-rated cycling device that our testers have rated across all the iterations of the SRAM-owned Karoo cycling computer.
It makes this deal well worth snapping up, and like all the best cycling deals, this Hammerhead discount is only available while stocks last. I also think, seeing that it's also at a lowest-of-the-year price, it's unlikely to go any cheaper come the Amazon Prime Day sales.
In our Hammerhead Karoo review, we rated it with an almost-perfect 4.5-star rating, and Cyclingnews' tester Tom Wieckowski reckoned at the time of testing that it was a worthy contender for the throne as the best cycling computer.
Tom highlighted that the Karoo "brought an awful lot to the table" and built on the class-leading touchscreen and resolution that the previous model was well-known for. The Karoo might not match up to our best overall choice, the Garmin Edge 1050, but it's not far behind. Especially when you consider the Garmin device will cost you at full price £680. Although the Edge 1050 is discounted on Amazon by 7% to £633.32.
The Karoo can hold its own easily against the market-leading Garmin, and has and Tom highlighted the smartphone-like user experience of the Karoo, and its touchscreen at the time of review was the best in a cycling computer. It's fair to say that Garmin and Wahoo offerings now have on-par touchscreen performance, but at this price, the Karoo is a very appealing purchase.
Size-wise, the Karoo screen is a high-definition 3.2-inches, the Edge 1050 measures 3.5-inches, and the resolution is the same at 480 x 800 pixels. However, with its liquid crystal display and 1,000 nits of peak brightness, the Garmin Edge 1050 just edges the comparison, but at a cost.
Battery life is claimed to be 15 hours on normal usage, and the Edge 1050 is 20 hours, again on normal usage.
This deal is Amazon UK only, and I've not found any significant discounts on the highlighted deal at Amazon US. Below, I have included our handy price checker, which will show the best prices on Karoo Hammerhead bike computers from other retailers, relevant to your location and territory.
