Editorial review
Garmin Descent Mk4 is tracked as a possible next product. The latest reference in this lineage is Descent Mk3 / Mk3i, announced 2023-11-14. Reported evidence and its limits are collected below.
Nov 2026–Jan 2027
Our estimate uses 3 releases and a rounded average gap of 37 months, added to Descent Mk3 / Mk3i’s 14 Nov 2023 release, with a ±1 month range. This is a cadence estimate, not a leaked date.
Mk1, Mk2 and Mk3 form the flagship dive-computer lineage. The smaller Mk2 S and lower-priced G-series do not set this cadence.
Past gaps: 36, 37 months. Small sample; naming and product strategy can change.
Garmin Descent Mk4 is the label tracked on this page. Garmin has not confirmed that next-generation name in our verified release data. Numbering alone is not a leak.
Each entry separates what a source reports from what it establishes. Multiple articles covering one teardown count as one finding. Past forecasts remain visible.
the5krunner forecasts Descent Mk4 for October 2026.
A roadmap’s certainty label is its author’s judgment. We found no named device evidence in that entry, so it does not merit a Strong or Confirmed grade.
Descent Mk3 / Mk3i is the latest reference in this lineage, announced 2023-11-14 at $1,399+. Compare its published features with your needs. A future name or a missed forecast is not a reason to assume new hardware is imminent.
Descent Mk3 / Mk3i: published features and release history →Editorial review: 5 Oct 2026. Sources below cover the product lineage and any included rumors. An empty evidence section means no device-specific leak is included in this review; it is not a claim that no rumor exists anywhere. Evidence grades describe the reporting, not a guarantee of release. Garmin News and Garmin Rumors are independent publications.
Our methodology explains the release-cadence model and rumor grades.