Editor’s Note & Update (October 2026):
In our original report, we analyzed early regulatory filings pointing toward an upcoming Enduro watch. We want to update the record: official certification listings and device documentation confirm that the actual internal model number for the Garmin Enduro 4 is A04413. The model number we originally tracked belonged to a different Garmin hardware filing. We have fully updated this report below to reflect the corrected model details, specifications, and hardware tracking history.
When tracking unreleased smartwatches through international regulatory databases, matching early test numbers to final device names can be challenging. Compliance filings often hide marketing names behind test numbers until final FCC and clearance documents are officially published.
We can now confirm that Model A04413 is the official hardware designation for the Garmin Enduro 4.
Here is a breakdown of what the verified A04413 certification listings reveal about Garmin’s ultra-endurance flagship.
Key Hardware Specifications (Model A04413)
The Enduro series remains Garmin’s dedicated watch for ultra-marathoners, trail runners, and long-distance athletes who prioritize extreme battery life over high-drain screens.
| Feature | Specification Details |
| Model Number | A04413 |
| Case Size | 51mm heavy-duty casing |
| Display Type | Sunlight-readable Memory-in-Pixel (MIP) display with Power Sapphire solar charging |
| Storage Capacity | Upgraded 64GB internal storage for maps, music, and software updates |
| Band System | New ComfortFit fabric strap optimized for weight reduction and breathability |
| GPS & Connectivity | Multi-band GNSS with SatIQ technology, Bluetooth, Wi-Fi, and ANT+ |
| Sensors | Gen 5 Elevate optical heart rate sensor array, barometric altimeter, and compass |
Why Regulatory Filings Cause Model Overlaps
Database sleuthing across registries like the FCC, SIRIM, and IMDA is one of the best ways to discover upcoming hardware before launch. However, early filings often include temporary test numbers or shared antenna modules across multiple prototypes.
While our initial report spotted early wireless test filings, updated compliance database entries confirm that A04413 is the true unit driving the Enduro 4 release.
What Model A04413 Means for Enduro Fans
The confirmation of Model A04413 brings several key upgrades to the Enduro line:
-
Double the Onboard Storage: Upgrading from older 32GB limits to 64GB allows users to store worldwide TopoActive maps alongside extensive music playlists without running low on space.
-
MIP Display Focus: Garmin continues to serve performance athletes by keeping a solar-boosted MIP screen on the Enduro line, offering unbeatable readability under bright sunlight and maximizing battery life during multi-day efforts.
-
New ComfortFit Band Design: The included fabric strap is specifically designed to reduce weight on the wrist and eliminate pressure points during long ultra-endurance races.
Stay tuned to Garmin News for continued tracking of firmware updates, hidden database leaks, and official hardware teardowns.
Also Read:Â Garmin Fenix 9 vs. Fenix 8 (And Pro Models): Every New Upgrade Explained
