Fourth Frontier

@fourth_frontier

Continuously monitor your heart health with the Frontier X2. Live ECG, real-time alerts, science-backed data.
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9,855
Following
256
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Users Ratio
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Weeks posts
The biggest difference between elite and amateur running? Both runners here are hitting similar cadences (~185 spm), but the pace tells a different story: Right: ~3:00/km Left: ~2:30/km (maybe even faster 👀) What separates the two isn’t cadence, it’s: - Stride length - Efficiency - Foot strike What can you see? . . #endurancetraining #running #runnersofinstagram #elite #runningform #marathonträning #marathon #marathonrunning
46 3
2 months ago
Biggest mistake in heart rate training? Trusting inaccurate data. Wrist monitors can be off by 10–15 bpm — enough to completely miss your zone. I’ve been testing the Fourth Frontier X2 Heart Rate Monitor — seeing a 10–12 bpm difference vs Garmin. Heart rate training isn’t essential… but if you’re using it and not improving, this could be why. 30% off with code DECLAN. #run #running #runner #runningadvice
0 6
1 month ago
I’m a stats guy. So let’s compare the @whoop and @fourth_frontier , two great devices but for super accurate heart rate data there’s only one winner ❤️🤩 They’ve kindly given me 30% off with the code TIM at checkout 🙂
0 0
1 month ago
With my next training block right around the corner, I’m using my @fourth_frontier X2 to make sure my body is ACTUALLY ready and getting the most out of my training! Use code RACHELO to save 30% today!!! #runner #runningmetrics #raceday #health #insight
0 4
3 days ago
Been a weird yet fun journey getting to this point… 18 year old me would be very confused at the idea of 26 year old me doing triathlons and cycling instead of golf but here we are. Running was the start then cycling became my new favorite hobby. What started as a very amateur affair quickly turned into me taking things WAYYYY too seriously. Now it’s all about improving the numbers whilst having fun. @fourth_frontier helps me do just that. Code “HARRISON” at checkout for 30% OFF on their smart heart rate monitors. #ad #sport #running #cycling #triathlon
142 6
3 days ago
The harder path teaches you things comfort never will. Frontier Zone is built for those who train with intent, understand their body, control their effort and push with purpose. From recovery to Zone 2 training, every session starts with knowing your zone. Now available in the UK & EU. Order via the Link in bio. #FrontierZone #ZoneBasedTraining #Zone2Training #TrainWithHeart #heartratetraining
4 0
3 days ago
Are you running your easy runs too fast and overtraining? If you’re only relying on your watch, you probably are. I’ve been using @fourth_frontier with my training because it’s a lightweight chest strap based heart rate monitor that uses ECG technology to provide highly reliable heart rate data. It also sends vibrational alters to let you know when you’ve moved out of your preset threshold 👌 And if you want to check out the Frontier device in person before trying it, it’s now officially available at the @smartechwrld area at @theofficialselfridges London so you can actually see and experience the device for yourself while shopping. Have you trained with a chest based heart rate monitor before? Ad @fourth_frontier 🤍🤍🤍 @smartechwrld #hearttech #heartmonitor #hearthealth #running
386 12
4 days ago
AD Understanding the metrics of how my body performs has been a huge factor in helping me tackle hard session during a block. Using the device from @ has been pinnacle for this! Use code LOUIS for 30% off #ad #running #heartrate
16 0
5 days ago
There comes a point where training stops being about proving something and starts becoming about understanding yourself. Introducing Frontier Zone, built for smarter, zone-based training. Understand your body. Calibrate your intensity. Define your zone. Whether you’re building endurance, improving recovery or mastering Zone 2 training, Frontier Zone helps you train with more awareness, control and intent, guided by your heart. Now available in the UK & EU Order now via the link in bio. #FrontierZone #ZoneBasedTraining #Zone2Training #TrainWithHeart #heartratetraining
8 0
6 days ago
Not every training block goes perfectly. After my marathon didn’t go to plan, I’ve spent a lot more time focusing on the basics again — effort, recovery and actually listening to my body instead of blindly forcing sessions. It’s still a work in progress, but I already feel more in tune with my training than I did before. Small adjustments… but they make a big difference over time 📈 I’m now using @fourth_frontier x2 device for more data… use code: KIERAN for 30% off #ad #heartratetraining #runningcommunity #health #fitness
5 0
9 days ago
Recovery has begun and I’m back out on the streets. I use the @fourth_frontier x2 device to help with my recovery so I know when to Train, when to Rest and when to push. Go check them out and use discount code “LEE” for a 30% discount with them. #run #running #frontierx2 #health #marathontraining
4 0
10 days ago
EPISODE 2 of THE BROOKLYN BUILD 🗽🏃‍♂️ Less than 2 weeks out from The @nyrr Brooklyn Half!! Today’s workout was all about rhythm running with 6 x 2k @ goal Half marathon pace! With the help of @fourth_frontier navigating my zones and heart rate accurately (CODE JOEL FOR 30% OFF) Super excited to toe the line on May 16th for @nicejewishrunners 💙 Stay tuned for the next episode of ‘The Brooklyn Build’ yewwww 🕺🫶 #nycmarathon #brooklynhalf #halfmarathonprep #nycfitness #nychalfmarathon
0 8
10 days ago