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Wellue (Viatom)
Wellue DuoEK Portable ECG Monitor
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Best Portable Ecg Monitors · head-to-head
Wellue DuoEK Portable ECG Monitor vs Fourth Frontier Frontier X2
A sourced, side-by-side comparison. Fourth Frontier Frontier X2 is cheaper at $579. Every spec and price links to its source.
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Fourth Frontier
Fourth Frontier Frontier X2
$579
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Wellue DuoEK Portable ECG Monitor | Fourth Frontier Frontier X2 |
|---|---|---|
| US price | — | $579 |
| Brand | Wellue (Viatom) | Fourth Frontier |
| Released | — | — |
| 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 |
Sources — Wellue DuoEK Portable ECG Monitor: getwellue.com (verified 2026-08-05). Fourth Frontier Frontier X2: fourthfrontier.com (verified 2026-08-05).
What's the difference between the Wellue DuoEK Portable ECG Monitor and Fourth Frontier Frontier X2?
Where the two actually differ on the specs we track (4 of 9). Matching specs are omitted.
- 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