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Fourth Frontier – Coupons, Promo Codes & Special Offers (12)

$100
OFF
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Fourth Frontier: $100 Off Frontier X2 at Fourth Frontier
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$100 Off Frontier X2 at Fourth Frontier$100 off. Select items. Frontier x2
$100
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Fourth Frontier: $100 Off Frontier X2 at Fourth Frontier
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$100 Off Frontier X2 at Fourth Frontier$100 off. Select items. Frontier x2
20%
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Fourth Frontier: 20% Off Frontier X2 at Fourth Frontier
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20% Off Frontier X2 at Fourth Frontier20% off. Select items. Frontier x2
$100
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Fourth Frontier: $100 Off Select Items at Fourth Frontier
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$100 Off Select Items at Fourth Frontier$100 off. Select items
$100
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Fourth Frontier: $100 Off Copy Of Frontier X2 at Fourth Frontier
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$100 Off Copy Of Frontier X2 at Fourth Frontier$100 off. Select items. Copy of Frontier x2
20%
OFF
Flag of AlgeriaCODE
Fourth Frontier: 20% Off Frontier X2 at Fourth Frontier
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20% Off Frontier X2 at Fourth Frontier20% off. Select items. Frontier x2
$100
OFF
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Fourth Frontier: $100 Off Frontier X2 at Fourth Frontier
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$100 Off Frontier X2 at Fourth Frontier$100 off. Select items. Frontier x2
$50
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Fourth Frontier: $50 Off All New Frontier X2 at Fourth Frontier
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$50 Off All New Frontier X2 at Fourth Frontier$50 off. Select items. All New Frontier x2
$75
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Fourth Frontier: $75 Off Frontier X2 (Must Order 2 Items) at Fourth Frontier
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$75 Off Frontier X2 (Must Order 2 Items) at Fourth Frontier$75 off. Select items. Frontier x2
$50
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Fourth Frontier: $50 Off Frontier X at Fourth Frontier
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$50 Off Frontier X at Fourth Frontier$50 off. Select items. Frontier x
$75
OFF
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Fourth Frontier: $75 Off Frontier X at Fourth Frontier
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$75 Off Frontier X at Fourth Frontier$75 off. Select items. Frontier x
$100
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Fourth Frontier: $100 Off Frontier X at Fourth Frontier
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$100 Off Frontier X at Fourth Frontier$100 off. Select items. Frontier x
Popular Fourth Frontier Promo Codes & Sales

Free promo codes Fourth Frontier June 2025 are presented on our website. But surprisingly to us, many people in 2025 are looking for coupons for 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023. Always verify the validity and expiration date of your promo codes to ensure you're using a relevant code for your purchase.

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Covered Stores: 37905Monitored Reward Portals: 35

Fourth Frontier Retailer Rating

TrustScore 4.9 out of 54.9Reviews 281281

Last Fourth Frontier Reviews from Trustpilot

Anthony
For those of us who are aging-athletes…

For those of us who are aging-athletes with many decades of ultra-endurance training and competition and consequent cardiovascular issues, the metrics FF X2 provides are indispensable to be able to see in real-time. For me, those data, when combined with real-time measurement of muscle oxygen and watt output allow me to calibrate my work to enhance safety and fitness. To my knowledge, there are no other wearable monitors at the price point of the X2 and Premium subscription that can provide such data.

Brad
Fourth Frontier X2 is helping me manage heart issues

Quick background--I had been having some irregular heart beats during exercise and was looking for a way to investigate what was going on. Found the Fourth Frontier X2 online. I use it every time I workout now and also when I sleep. I have gotten a lot of great insight into my heart health and am quite happy with the product. The X2 is helping me and my doctor manage my newly diagnosed Atrial Fibrillation. --The Heart Strain indicator is quite helpful. I have had the "buzz" on the device go off a couple of times. It tells me to lower my workout intensity. --The heart rate is accurate--as compared with my Polar H10 strap and several manual counts. --Breath rate is helpful information not supplied by other heart rate devices --The HRV reading is helpful and compares very close to my Oura ring. --Sleep data is impressive and compares very close to the Oura ring. --The X2 could easily take the place of the Polar H10 strap and Oura ring. --The App is intuitive and provides a lot of useful information. --I love that the app will generate a PDF of the ECG that can be emailed to your cardiologist/doctor. --I love that the X2 is charged via USB instead of a battery like the H10. --Battery life is impressive--I have worn it all night while sleeping followed by 3 hours of use during exercise and have not gone below 70% charge. I once wore it for 18 hours and only got to 60% charge. The X2 charges in just a few minutes-much faster than my Apple watch. --My cardiologist was enthusiastic about my use of the X2. He found the ECG data useful--especially because he could see what was happening during a specific activity. I had worn a 2 week monitor through him--but of course I didn't have any weird beats until after I turned in his device. The X2 ECG is helping to guide my treatment.

Holly Klingler
Offers unique/valuable health insights most devices can't and excellent service

If you want to really learn about your heart health and what impact it, this is the device. I’ve used many health devices, and they all more or less give you the same data. While that data is informative, I wanted deeper insights into my heart health and Fourth Frontier does this better than any device I know. Yes, it’s on the pricier side and I was reluctant about that, but the great thing is that you can get a full, one-on-one demo. I talked with Vijay Kumar who took the time to walk me through what it does, answered all my questions, and made sure the device is a fit for my needs. I was looking for a device that would give me all-day readings, and he showed me exactly how it could do just that. So, the purchase was seamless. I never felt rushed or pressured. The device itself far outdid my expectations. I was nervous about whether the battery would give all-day readings, and it does. The readings give me much better insights into my heart function than any device I’ve tried. What’s even better is that you get a consultation with a real healthcare professional who helps you understand your readings. I learned more in that session than months and years of data from other sources and/or doctor visits. Both the mobile device and the desktop dashboard give you a lot of insights. Finally, in just the few months I’ve owned this device, they have updated and added features and services so that the device and the information continue to improve. As someone who loves to try out new tech and learn about my health through insights, I’m super impressed!

John Pike
Frontier X2 - an excellent heart monitor -

I've had lots of exercise monitors over the years but was looking for one with multiple and extensive features. The Fourth Frontier X2 is an excellent monitor providing me with all the stats I'm interested in for a heart monitor...as well as special features such as an indication of VO2 Max (with the premium membership). Also, customer service has been excellent vie email whenever I've had a question.

Bruce Bosland
The Frontier X is an excellent product

The Frontier X is an excellent product, backed by a team that listens to its customers and responds promptly—a refreshing approach in today’s market. It may be the best heart rate monitor for fitness enthusiasts.

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