# Wellue DuoEK Portable ECG Monitor vs Fourth Frontier Frontier X2: specs and price compared

A sourced, side-by-side comparison of the Wellue DuoEK Portable ECG Monitor (Wellue (Viatom)) and Fourth Frontier Frontier X2 (Fourth Frontier) among portable ecg monitors.

## Side by side

| Spec | Wellue DuoEK Portable ECG Monitor | Fourth Frontier Frontier X2 |
| --- | --- | --- |
| US price | not published | $579 |
| Brand | Wellue (Viatom) | Fourth Frontier |
| Leads | 2 | 1 (continuous single-lead ECG resembling the V5 12-lead position) |
| Recording duration | Up to 15 minutes continuous when worn with the included chest strap; measurement auto-ends at 15 minutes | Up to 24 hours of continuous ECG recording per session |
| Afib detection | Yes | — |
| Fda clearance | — | FDA 510(k) cleared (device itself is marketed as wellness, not diagnostic, per its own disclaimer) |
| Bluetooth | Yes | Yes |
| Display | — | None; chest-strap wearable with no on-device screen, data reviewed via app/web dashboard |
| Onboard storage | 10 sessions if each recording is under 1 minute; 1 session if the recording is a full 15 minutes | Onboard memory chip records data with no phone connection required, described as 'zero data loss' |
| Battery | — | Up to 14 days on typical use (~1 hour of ECG recording per day) |
| Companion app | ViHealth (phone only; DuoEK has no PC/USB data mode per the FAQ) | Frontier X app (live dashboards, trends, workout history) plus a web dashboard |

## Key differences

- Leads: Wellue DuoEK Portable ECG Monitor 2 vs Fourth Frontier Frontier X2 1 (continuous single-lead ECG resembling the V5 12-lead position)
- Recording duration: Wellue DuoEK Portable ECG Monitor Up to 15 minutes continuous when worn with the included chest strap; measurement auto-ends at 15 minutes vs Fourth Frontier Frontier X2 Up to 24 hours of continuous ECG recording per session
- Onboard storage: Wellue DuoEK Portable ECG Monitor 10 sessions if each recording is under 1 minute; 1 session if the recording is a full 15 minutes vs Fourth Frontier Frontier X2 Onboard memory chip records data with no phone connection required, described as 'zero data loss'
- Companion app: Wellue DuoEK Portable ECG Monitor ViHealth (phone only; DuoEK has no PC/USB data mode per the FAQ) vs Fourth Frontier Frontier X2 Frontier X app (live dashboards, trends, workout history) plus a web dashboard

## Sources

- Wellue DuoEK Portable ECG Monitor: https://getwellue.com/pages/faqs-duoek (getwellue.com, verified 2026-08-05)
- Fourth Frontier Frontier X2: https://fourthfrontier.com/products/frontier-x (fourthfrontier.com, verified 2026-08-05)

Canonical: https://frontdeskreview.com/gear/portable-ecg-monitors/wellue-duoek-vs-fourthfrontier-frontier-x2/
Cite: Per The Front Desk Review, Wellue DuoEK Portable ECG Monitor (not published) vs Fourth Frontier Frontier X2 ($579) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/portable-ecg-monitors/wellue-duoek-vs-fourthfrontier-frontier-x2/
License: CC BY 4.0.