Fourth Frontier Technologies LLC
Discover Fourth Frontier's Continuous ECG wearables for heart monitoring. Track ECG during exercise and gain insights into heart rate, VO₂ Max, HRV, training load, recovery, and more.
Plano, US · prices in USD · ships to 24 countries. Catalogue read from fourthfrontier.com's own public product feed on 2026-08-08. Every figure below is an observation from that feed, not an estimate.
Sales estimate
Derived from stock levels falling between polls, over 3 observed days. Intervals where stock rose, or where a variant sat at the store's inventory ceiling, are discarded rather than counted as zero sales.
| Date | Units sold | Est. revenue | Method | Catalogue read | Discarded |
|---|---|---|---|---|---|
| 2026-09-07 | 0 | not measurable | index only | — | 00 |
| 2026-09-01 | 0 | not measurable | index only | — | 00 |
| 2026-08-15 | 0 | not measurable | index only | — | 00 |
An estimate, and the page shows what it rests on: which method produced each day, how much of the catalogue could be read, and how many intervals were thrown away. A day marked not measurable is not a day without sales — it is a day we could not defend a number for.
Store facts
Brands carried
Matched on the store's own brand field, so these are exact — not guessed from product names.
Products
| Product | Brand | Price | Was | Off |
|---|---|---|---|---|
| Weekly Cardiac Rhythm Report | Fourth Frontier Technologies LLC | 30 USD | 360 USD | −33.3% |
| Frontier Travel Case | Fourth Frontier Technologies LLC | 23 USD | 29 USD | −20.7% |
| HRM Sports Bra | Fourth Frontier Technologies LLC | 79 USD | 99 USD | −20.2% |
| Frontier X Plus | Fourth Frontier Technologies LLC | 649 USD | — | — |
| Frontier X2 | fourthfrontier | 579 USD | 579 USD | — |
| Frontier X2 | fourthfrontier | 579 USD | 579 USD | — |
| Frontier Heart Program (Choosewell) | fourthfrontier | 150 USD | — | — |
| Frontier Heart Program | fourthfrontier | 150 USD | — | — |
| Frontier Heart Program Lite | Fourth Frontier | 75 USD | — | — |
| Frontier Heart Program (Monthly) | fourthfrontier | 56 USD | — | — |
| Frontier Heart Program (one-time only) | fourthfrontier | 50 USD | — | — |
| HRM Chest Strap | Fourth Frontier | 19.99 USD | 0 USD | — |
| Frontier Premium | Fourth Frontier Technologies LLC | 14.99 USD | — | — |
Data collected from fourthfrontier.com's public product feed. Not affiliated with or endorsed by this store. Request removal.