Fourth Frontier Technologies review
Updated September 30, 2026 · ThriveCue Editorial Team · Facts checked September 30, 2026
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Our verdict
Fourth Frontier Technologies suits you if you want a chest strap or fitness tracker with an ECG and a long battery for a low entry price. The hardware starts at $20, and the Frontier X runs 14 days on a charge, which is more than most trackers in this group.
Key facts
- Best for
- Budget buyers who want an ECG and heart rate tracking in a strap or tracker, not a watch.
- Price from
- $20 (Source, checked September 30, 2026)
- Membership per month
- $14.99 (Source, checked September 30, 2026)
- Battery life
- 14 days (Source, checked September 30, 2026)
- Platforms
- iOS, Android (Source, checked September 30, 2026)
- Water resistance (m)
- 1 (Source, checked September 30, 2026)
- Warranty
- 1 year (Source, checked September 30, 2026)
- Markets
- AE, AU, BH, BR, CA, CO, HK, IL, IN, JP, KR, KW, LB, MU, MX, NZ, OM, PH, QA, SG, TR, TW, US, ZA (Source, checked September 30, 2026)
- Legal entity
- Fourth Frontier Technologies LLC (Source, checked September 30, 2026)
- Headquarters
- India (Source, checked September 30, 2026)
- Support channels
- Email, Chat, Help-centre (Source, checked September 30, 2026)
- Products
- Fitness tracker, Chest strap
- Health sensors
- Heart rate, Ecg, Hrv, Sleep
- Official website
- fourthfrontier.com
Apps and profiles
- Elsewhere
- LinkedInXblog.fourthfrontier.com
Pros and cons
Pros
- Entry price of $20 ranks the brand 1 of 31 brands on price from, the strongest ranking of its three compared measures.
- ECG and HRV sit in the sensor set alongside heart rate and sleep, so the Frontier X covers more than step counts.
- A battery life of 14 days means fewer charging gaps than the 6 to 18 range most brands in this category sit in.
- Water resistance of 1 m makes it usable in the shower and around rain without worry.
- It works with both iOS and Android devices, so you are not locked to one phone maker.
Cons
- A 1 year warranty is short next to the 2 median across the brands we track.
- Support runs on email, chat and help centre only, with no phone line listed.
- The Premium subscription adds $14.99 a month, which is optional but changes the running total after the first year.
- Product range is fitness tracker and chest strap, so there is no smartwatch if you want a screen on your wrist.
Ready to try Fourth Frontier Technologies?
Scored 8.9 / 10 by ThriveCue.
Who it suits
- You want a chest strap or band with ECG and HRV readings rather than a watch face.
- You are buying at the low end and care more about entry price than about a long warranty.
- Your phone runs iOS or Android and you want readings in one app.
Who should look elsewhere
- You want a smartwatch on the wrist: Amazfit covers smartwatch, fitness tracker and smart ring, so it fits that brief better.
- You need a long warranty: Amazfit and Runmefit both sit in this group, and the 1 year cover here is the shortest of the three.
- You want phone support, since this brand runs on email, chat and help centre only.
Where it sits among rivals
Price is the reason this brand comes to the top of the shortlist. Its $20 entry point places it 1 of 31 brands on price from, which is far higher than either of its ranks on the other compared measures. That is the trade-off to weigh first: you are buying at the cheapest entry point in the group, and the other two measures tell you what you give up for it. On battery days, 14 days is comfortable but not a standout. The brand ranks 9 of 23 on battery days, and the median across the smartwatches and fitness trackers we track is 11.5 days, so the Frontier X sits a little above the middle of the pack. It will outlast many trackers without a nightly charge, but it is not the longest lasting option available. Membership month is the weakest of the three. The $14.99 Premium tier places the brand 18 of 21 brands on that measure, so treat the subscription as a real running cost rather than a rounding error. If you buy the hardware and never open Premium, that ranking does not affect you.
What it does well
Battery life is the headline number. At 14 days, the Frontier X gives you roughly a fortnight between charges, which lines up with a training block rather than a charging routine. For anyone who has given up on a wearable because it needed power every second evening, that is the detail worth checking first. The other stand-out is water resistance. A rating of 1 m means you can keep the band or strap on through rain, a swim or a shower without taking it off, which is what makes sleep and recovery tracking worth keeping switched on. Warranty is the soft spot. Cover runs for 1 year, against a median of 2 across the brands we track, so you are accepting a shorter safety net than most buyers in this group get. Budget for that if the strap takes wear from daily use.
Pricing
The hardware side is the strongest argument. Devices start at $20, which is the figure that puts this brand 1 of 31 on price from and makes it the cheapest way in among the brands compared here. Nothing else in the pack needs to match that number to justify a first purchase. The ongoing side is different. Premium costs $14.99 a month, and that subscription is what places the brand 18 of 21 brands on membership month. Read the two figures together: you pay $20 to get the device, then decide whether the Premium tier earns its $14.99 over the months you use it. Nothing in the pack forces the subscription on you, so the honest comparison is hardware now against hardware plus a year of Premium later.
Who runs it
Fourth Frontier Technologies is the legal entity behind the brand, and the operation is registered in India. There are no licences on record for this brand, so there is no named regulator to point you to when you want to check who is accountable. Reach is broad. The brand lists AE, AU and BH markets, spanning the US, Canada, Brazil, Mexico, much of Europe including the UK, and a long list of Asia Pacific and Middle East markets, so shipping is unlikely to be the obstacle for most readers. Support runs on email, chat and help centre, which is a help centre plus email and chat. That is enough for setup questions and troubleshooting, though there is no phone line listed for anything urgent. Platform coverage is straightforward: the app works on iOS and Android, so an iPhone or an Android handset will both pair with the hardware.
How Fourth Frontier Technologies compares
8.9 vs 9.0
8.9 vs 9.1
8.9 vs 9.5
8.9 vs 8.8
8.9 vs 8.9
8.9 vs 8.9
8.9 vs 8.7- 8.9 vs 8.9
8.9 vs 9.2
8.9 vs 9.2
8.9 vs 9.3
8.9 vs 8.9
8.9 vs 9.0
8.9 vs 9.6- 8.9 vs 9.3
8.9 vs 9.2
8.9 vs 9.2- 8.9 vs 9.2
8.9 vs 9.1- 8.9 vs 9.1
8.9 vs 9.1- 8.9 vs 9.1
8.9 vs 9.0- 8.9 vs 9.0
8.9 vs 9.0
8.9 vs 9.0
8.9 vs 8.8
Where Fourth Frontier Technologies is available
- Available
- Australia, Bahrain, Brazil, Canada, Colombia, Hong Kong, India, Israel, Japan, Kuwait, Lebanon, Mauritius, Mexico, New Zealand, Oman, Philippines, Qatar, Singapore, South Africa, South Korea, Taiwan, Turkey, United Arab Emirates, United States
Countries from the brand (Source, checked September 30, 2026)
Frequently asked questions
How much does the hardware cost?+
Devices start at $20, and that entry point is what puts Fourth Frontier Technologies 1 of 31 brands on price from. Buy the device alone and you pay nothing further until you choose a Premium plan.
What does the Premium subscription add?+
Premium costs $14.99 a month. On that measure the brand ranks 18 of 21 brands, so the subscription is the part of the pricing to think harder about than the device price.
How long does the battery last between charges?+
The Frontier X runs 14 days on a charge, placing the brand 9 of 23 brands on battery days. The category median is 11.5 days, so you get a little more than the middle of the pack.
Which health readings does the device track?+
The sensor set covers heart rate, ecg and hrv, so heart rate, ECG, HRV and sleep data all come from the same hardware. ECG and HRV are the less common additions here, since only 30% of the brands we track list ECG at all.
Can I use it in the rain and the shower?+
Water resistance is 1 m, which covers everyday exposure like rain, showers and pool sessions. You can leave the band or strap on for sleep tracking instead of taking it off each night.
What is the warranty period?+
Warranty cover runs 1 year, which is shorter than the 2 median across the brands we track. Factor that in if you plan to wear the strap daily and expect it to last several years.
How do I get help if something goes wrong?+
Support runs on email, chat and help centre, so you have a help centre plus email and chat. A phone line is the most common channel at 67.5% of the brands we track, and this brand does not list one.
Where can I buy it and which phone does it work with?+
The brand sells in United Arab Emirates, AU and BH markets, including the US, Canada, the UK, much of Europe and a wide Asia Pacific line-up. The app works on iOS and Android, so either an iPhone or an Android handset will pair with it.
Sources
- fourthfrontier.com checked September 30, 2026
Backs: Health sensors, Markets, Products
“24/7 continuous ECG for precise heartbeat tracking ... Detailed performance and recovery insights with VO2 Max, HRV, and readiness score ... Heart Rate ... Sleep Stage”
- fourthfrontier.com/pages/about-us checked September 30, 2026
Backs: Legal entity, Platforms
“(c) 2026 Fourth Frontier Technologies LLC”
- fourthfrontier.com/pages/premium-subscription checked September 30, 2026
Backs: Membership per month, Support channels
“Frontier Premium offers a monthly plan at $14.99 and an annual plan at $119.99”
- fourthfrontier.com/pages/shipping-returns-warranty checked September 30, 2026
Backs: Warranty
“Fourth Frontier offers a limited warranty that the Product obtained either directly from our Site or via an authorized Reseller will be free from defects in workmanship and materials under normal use...”
- fourthfrontier.com/pages/terms-of-use checked September 30, 2026
Backs: Headquarters
“all matters relating to your access to or use of the Site, Product, and Services ... will be governed by the laws of India and the courts at Bengaluru shall have exclusive jurisdiction”
- fourthfrontier.com/products/frontier-x checked September 30, 2026
Backs: Battery life, Price from, Water resistance (m)
“Superior battery life for 14 days on typical usage; A fully charged Frontier X2 can last for up to 24 hours when recording data continuously and 14 days if used for an average of 1 hr/day”
Compiled from 6 source pages, checked September 30, 2026. We did not open an account.
What changed
- September 30, 2026: axisScores offer was 8.7, now 8.8
Fourth Frontier Technologies
Budget buyers who want an ECG and heart rate tracking in a strap or tracker, not a watch.