Bikes may be a big lump-sum investment, but there’s plenty more to spend your hard-earned cash on when it comes to cycling – and a decent GPS cycling computer is one such item.
Bike computers can help you track your ride and metrics, and act as a sat nav on your handlebar, with many computers offering impressive colour mapping and navigational aids.
However, the advanced tech found in the best bike computers doesn’t come cheap.
To help you save money, we’ve dug out some of the best deals for market leader Garmin’s most popular cycling computers, available through Amazon Renewed.
Amazon Renewed is the online mega-retailer’s shop for pre-loved electronics across a range of categories, including laptop computers, smartphones, smartwatches and gaming.
The products are inspected, tested and cleaned, and sold with a 90-day money-back guarantee. That means you can return your item at any time within 90 days of purchase for a replacement or full refund.
According to Amazon, batteries will have a capacity that exceeds 80 per cent of the original battery life, and all products are rated according to their condition: premium/excellent, good or acceptable.
Right, on to the deals. Where possible, we’ve highlighted whether the deal is available in the US, UK or both.
Garmin Edge 830 – save $84.04

- $309.95 (list price $393.99 – save $84.04)
- Buy the Garmin Edge 830 Renewed on Amazon.com
The Edge 830 may have been superseded by the Edge 840, but it’s still a top-dollar bike computer, with a touchscreen, turn-by-turn navigation, and advanced training features and analysis, such as training load focus, recovery and VO2 max.
Safety features include a bike alarm and tracking, to give peace of mind when you’re out on the road or trail.
- Read more: Garmin Edge 830 review
Garmin Edge 530 – save $34.50 / £109.43

- $214.99 (list price $249.99 – save $34.50)
- £120.52 (list price £229.95 – save £109.43)
- Buy the Garmin Edge 530 Renewed on Amazon.com
- Buy the Garmin Edge 530 Renewed on Amazon.co.uk
Looking for the same performance-tracking capability of the Garmin Edge 830 in a more reasonably priced package?
The Garmin Edge 530 boasts a 2.6in colour display and many of the same great features as the pricier Edge 830, and offers turn-by-turn navigation.
The major difference is the Garmin Edge 530 is operated by buttons, rather than a touchscreen, but for most riders, this will be a compact, user-friendly and great-value computer.
- Read more: Garmin Edge 530 review
Garmin Edge 820 – save $89.99

- $259.99 (list price $349.98 – save $89.99)
- Buy the Garmin Edge 820 Renewed on Amazon.com
The Garmin Edge 820 is a compact GPS cycling computer with a 2.3in touchscreen display. It’s a slightly older model in the Garmin range, but still offers plenty of performance – and at a good price.
As well as key performance metrics and Strava Live Segments integration, the computer can also provide turn-by-turn navigation.
Expect the full bundle in this package, with a standard and out-front mounts, premium heart rate monitor, and cadence and speed sensors included.
- Read more: Garmin Edge 820 review
Garmin Edge Explore 2 – save £52.70

- £184.90 (list price £237.60 – save £52.70)
- Buy the Garmin Edge Explore 2 on Amazon.co.uk
The Edge Explore 2 is one of our favourite bike computers, if you’re looking for a unit that focuses on navigation and mapping, rather than training and performance.
You still get plenty of ride metrics, and you can connect the computer to external sensors such as heart-rate monitors and power meters, to pull in and display that data.
The Edge Explore 2 also has a 3-inch touch display.
- Read more: Garmin Edge Explore 2 review