For affordable health-tracking tech, the Polar H9 Heart Rate Sensor is our top value pick – now with a 32% discount, it's a great Amazon cycling deal

The Polar H9 Heart Rate Monitor on a piece of wood showing product details
(Image credit: Josh Croxton)

The best heart rate sensors are the easiest way to keep track of your cycling performance and how your body reacts to your training efforts. There is a huge range of heart rate monitors to choose from, with various levels of functionality and cost, but ideally you'll want one that monitors your heart rate comfortably, consistently and accurately.

Here at Cyclingnews, we've tested dozens of options when it comes to heart rate monitors, including comparing smartwatches vs chest straps, and deep dives into fitness trackers like the Whoop 4.0 wrist strap.

Polar H9 Heart Rate Monitor
Polar H9 Heart Rate Monitor: was £64.99 now £43.99 at Amazon

Save £21 on Polar H9 Heart Rate Monitor which is our best value pick in our best heart rate monitor guide. The H9 doesn't come with any additional features like onboard memory or accelerometers, but at this price, it's a perfect pick for a 'basic function' HRM, and delivers accurate data whether cycling outdoors or indoors.

Paul Brett
Deals writer

Paul Brett is a deals writer for Cyclingnews and has been cycling for as long as he can remember, initially catching the mountain biking bug in the 1990s, he raced mountain bikes for over a decade before injury cut short a glittering career. An award-winning photographer, when not riding a bike, he can be found at the side of a road world championship or a cyclocross track shooting the action. Paul was the founder, editor and writer of Proper Cycling magazine, and he's travelled the world interviewing some of the top personalities in cycling and writing about some of the biggest cycling brands.

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