🔥 Fourth Frontier X2 Black Friday SALE: 33% Exclusive DISCOUNT! (28 Nov – 1 Dec) **BEST DEAL**
The Fourth Frontier Black Friday SALE is officially here, running from November 28th to Dec 21st!
While the standard DISCOUNT on their website is 25%, you can get an exclusive 33% OFF the Frontier X2 by using my link and code. This is the BEST DEAL available online and the LOWEST PRICE.
💰 Secure Your 33% Fourth Frontier X2 BEST DISCOUNT NOW
Deal: 33% OFF Frontier X2 (better than the standard 25% SALE)
Dates: 28th November – 1 December
Your Code: THE5KRUNNER
💥 CLICK HERE FOR THE BEST 33% OFF **DEALS** ON THE FRONTIER X2 💥
You can buy directly from the manufacturer, which ships internationally. Be sure to use the code THE5KRUNNER at checkout, or click the link above to have the DISCOUNT automatically applied. This is the **BEST PRICE** you will find.
How to Apply the Discount Code
For a quick visual guide, here is where to apply the code (image from 2024):
🔍 More Information
Need more convincing on this powerful ECG device?
Read the full review: Detailed Fourth Frontier X2 Review
🛒 Go to BEST SALE **DEALS** Page Now!
Last Updated on 29 January 2026 by the5krunner
My favourite kit and nutrition
- Injinji – Runners protect your toes. Avoid discomfort and minor injury. Run more. run faster. I use them.
- Garmin 90-degree charging adapter — the small adapter that keeps your charging cable tidy at the stem. Essential for race day. I use one.
- Garmin charging puck — the fastest and most reliable way to top up your Garmin before a session. I use one.
- Ravemen FR300 — front light that mounts directly under your Garmin or Wahoo head unit. Keeps your bars clean and your beam pointed where it matters. I use one.
- Body Glide – The Blue anti-chafe stick that all swimmers and many runners use. I use it.
- Maurten — the race nutrition trusted by elite athletes. Gels and drink mix engineered to be easy on the stomach. I use them.
- Garmin Varia RTL515 — radar rear light that alerts you to vehicles approaching from behind. Pairs with your Edge or Garmin watch. I use this model.
- Favero Assioma Pro RS2 — the power meter pedals most serious cyclists end up choosing. Accurate, easy to move between bikes. I use this model.
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. ID
