Buying a pair of the latest biometric sports tracking headphones enables you to monitor your heart rate, distances and calories burned right from your ears. It may sound like future tech, but there's already a host of smart biometric ear-buds hitting the market.
Heart rate training is no longer restricted to professional athletes, and ordinary runners are finding the benefits of training within the different zones.
Essential reading: Best heart rate monitor
There's no shortage of heart rate monitors on the market, and you'll find them in the latest Fitbit Charge HR, Fitbit Surge and of course, the Apple Watch. However, for many users, headphones are already part of their sports apparel, so adding heart rate sensors just makes sense.
Read on for our list of the most advanced sports headphones money can buy.
Jabra Sport Pulse
The Jabra Sport Pulse are great all-round sports headphones, that track your activity as well as supplying your ears with block rocking beats. The solid sound and range of data that's collected is impressive, although they're likely to be used as well as a dedicated sports watch, rather than as an alternative. Read our Jabra Sport Pulse review for the full lowdown.
Sony Smart B-Trainer
The Smart B-Trainer packs GPS, an accelerometer and heart rate monitoring in the right earpiece. There's also audio fitness coaching and it suggests what music tracks to play to match your heart rate. They're also fully waterproof but there's no specific pool based workouts. There's 16GB of storage for your music and the compatible runs on iPhone and Android.
Read this: We run with the Sony Smart B-Trainer
SMS Audio Biosport
Developed in an unlikely partnership between PC chip-making behemoth Intel and rapper 50cent, the SMS Audio Biosport headphones track your heart rate, sync with running app Runkeeper and are completely waterproof. The most incredible part, however, is that they can harvest energy from the sound jack itself, so you don't have to charge them to keep tabs on your ticker.
Essential reading: SMS Audio BioSport headphones review
Parrot Zik Sport
Coming soon is this new hearable from Parrot. The Zik Sport is lightweight at 75g and combines a music player with biometric sensors including heart rate monitoring as well as ground contact time, cadence and vertical oscillation.
It offers voice calling via microphones, a five hour battery life and Bluetooth 4.0. It looks like a profesh bit of kit, not exactly as fun and colourful as some Parrot fashion headphones. But it looks like the most tech Parrot has ever packed into a wearable.
Bragi Dash headphones
Available to pre-order, the Bragi Dash headphones are a pair of super-connected buds that can track your pace, heart rate and distance right from your ears. On the music front there's even 4GB of storage for tunes, which means you can leave your running watch and smartphone at home.
LG HRM Earphone
These smart buds can keep tabs on your pulse from inside your ear-canal, along with metabolic rate and blood oxygen levels during exercise. A small computer built onto the strap, which connects via Bluetooth to the LG Fitness app, does the processing. They also play your music, too.
$179.99, lg.com | Amazon
iRiverOn Iriver On HRM Earbuds
The original heart rate sensing headphones from back in 2013, it's amazing that the iRiverOn earbuds are still around today. Compatible with both iOS and Android via its own proprietary app, they're bulkier than newer models and more restrictive over use with other apps.