The Enduro 4 is official. Garmin announced it on October 6, 2026 at $899.99, sales started October 9, and Garmin kept the same 51mm MIP solar formula as the Enduro 3. What changed: storage doubles from 32GB to 64GB, the maps get 50 percent more RAM, and the Fenix 9's newest training tools came along with it, including grade-adjusted pace, stamina zones, rucking workouts with pack weight, indoor rowing with VO2 max and FTP, and a new multi-day activity log called Garmin Epic. Battery is unchanged at up to 320 hours in activity mode with solar and up to 90 days in smartwatch mode with solar, and the band is a new ComfortFit Fabric Band with QuickFit release. The one thing Garmin has not addressed is the 5GHz WiFi chip the FCC filing pointed to.
The Enduro 4 is out now. Everything confirmed is below, followed by the leak trail that led to it.
The Garmin Enduro 4 first surfaced as a leak, and Garmin itself accidentally confirmed it.
Update, October 8, 2026: The regulatory trail below (models A05146 and A05197) was pointing at exactly this launch. Everything in the timeline that follows is now settled.
Update, September 1, 2026: Garmin's "Play Harder" event came and went on August 25, and the Enduro 4 was a no-show. The Fenix 9 family got the full launch treatment, but the Enduro 4 never appeared. That doesn't mean it's dead. Garmin Connect 5.27 dropped the "Enduro 4" name from the app but kept internal device 5179, now associated with the codename GOBI. And two unidentified Garmin "Outdoor Products," model numbers A05146 and A05197, are moving through regulatory filings in Indonesia, South Korea, and Brazil. Neither matches a published Fenix 9 model number, and Garmin devices typically arrive one to three months after regulatory approval. The current best read: a fall 2026 release date, likely with solar MIP display and LTE. Details below.
An APK teardown of Garmin Connect version 5.26, first reported by Gadgets & Wearables, reveals a clear device reference to the Enduro 4 inside Garmin's own companion app. This is the first time Garmin has explicitly referenced a next-generation Enduro within its own software, a strong signal that an official launch isn't far off.
Garmin Enduro Release Dates: Enduro 2, 3, and 4
Every Enduro generation so far has launched in August, two years apart. Here is the full timeline, and where the next one stands:
| Model | Release date | Status |
|---|---|---|
| Enduro 2 | August 2022 | Released |
| Enduro 3 | August 2024 | Released |
| Enduro 4 | October 6, 2026 | Released |
That cadence broke in 2026. The Enduro 4 was expected at Garmin's August 25 "Play Harder" event and did not appear, which is why the best current estimate has moved from August to the fall.
What the Leak Got Right
The most concrete finding is simple: the string "Enduro_4" appears in Garmin Connect 5.26, but it did not exist in version 5.25. More importantly, it's not sitting in some forgotten corner of the code. It's embedded in a device registry-style table with an internal ID (5179) and category flags covering fitness, outdoor, golf, and wellness. That's the same structure Garmin uses for its multi-sport flagship watches.
The naming matters too. There was some speculation about whether Garmin might skip to "Enduro" or "Enduro X", as it did years ago when the Fenix line jumped a number. The app says otherwise. For now, it's Enduro 4.
Also spotted in the APK: expanded wording around Assistance Plus, Emergency Calling, Incident Detection, SOS, and Garmin Response, along with clearer references to LTE plans and data coverage. Whether any of that is Enduro-specific or a broader Garmin Connect refresh isn't clear from the code alone.
Call Handling Gets an Upgrade Too
The same APK reveals deeper phone-call infrastructure being added to Garmin Connect. The app now includes the Android permission MANAGE_ONGOING_CALLS and a new Garmin in-call service called GNCSInCallService. New strings cover incoming calls, call screening, answering, rejecting, and disconnecting. The notification database gains a callType field for better call classification.
This points to Garmin improving how phone calls are handled on LTE-capable watches, though it's not exclusive to the Enduro 4.
When Did the Enduro 4 Launch?
The pattern in the table above held for two straight generations, right up until it did not. Two August launches in a row made August 2026 look like a lock, and every pre-event leak suggested Garmin would hold that rhythm. The August 25 "Play Harder" event featured the Fenix 9 family instead, and the Enduro 4 never appeared.
The regulatory trail says the watch is still coming. Model A05146 surfaced in Indonesia in early July and later appeared in South Korea and Brazil. Model A05197 was certified in Indonesia on August 25, the day of the event. Garmin devices generally ship one to three months after regulatory approval, which lands the release date in the September to November window. Fall 2026 is the realistic target now.
CEO Cliff Pemble has also mentioned a "very active year plan for outdoor" on Garmin's Q1 2026 earnings call, and the back half of 2026 is shaping up to be loaded for Garmin: CIRQA (a Whoop competitor), the Enduro 4, and likely the Fenix 9.
What Will It Bring?
No official specs yet, but the smart money is on these possibilities:
MIP display with solar charging. This is the Enduro's identity. The Fenix line has moved aggressively toward AMOLED (Fenix 8 Solar, Fenix 8 Pro), but the Enduro series has stayed true to transflective MIP for battery-first reasons. Garmin hasn't yet combined AMOLED with solar charging, and that likely won't change here. The Enduro will remain the choice for people who want to disappear into the backcountry for days without a charger.
LTE connectivity. This is the big question. Some speculation points to satellite-style messaging, voice features, or even inReach integration baked directly into the watch, eliminating the need for a separate communicator. The expanded safety wording in the APK (Emergency Calling, SOS, Garmin Response) feeds that theory. If Garmin adds inReach functionality to the Enduro 4, it would be a major differentiator for backcountry athletes.
New safety features. The expanded wording around Incident Detection, Assistance Plus, and Garmin Response suggests Garmin is making its safety ecosystem more prominent and clearer to users. The new language around LTE plans and coverage suggests Garmin wants users to understand exactly which features work with which connections.
Garmin Connect+ integration. New strings reference coach plans requiring Garmin Connect+ subscriptions, plan selection for cycling, fitness, triathlon and other coaching categories, and even discount codes for eligible subscribers. Expect more features to sit behind the paywall.
The Big Question: MIP or AMOLED?
The T3 article on the leak poses it directly: Can Garmin finally abandon MIP displays?
Garmin has been here before. The Fenix 8 Pro went AMOLED and Garmin watchers Split on whether it was the right call. The Enduro line has historically stayed MIP because solar charging + AMOLED still isn't a solved equation. The power requirements of a bright OLED screen eat into the solar advantage too aggressively for the Enduro's core use case.
If Garmin sticks with MIP, the Enduro 4 will likely claim another generational leap in battery life, potentially breaking the 100+ hour GPS tracking barrier that the Enduro 3 already flirted with. If Garmin goes AMOLED... well, that would signal a bigger philosophical shift for the series.
What Enduro 3 and Enduro 2 Owners Should Know
If you landed here searching for an Enduro 3 or Enduro 2 release date, the likely reason is that you already own one. Here's the direct answer on timing, and whether the Enduro 4 is worth waiting for.
Enduro 3 (August 2024). You're two years into a watch that still leads this category on battery. It runs up to 320 hours of GPS with solar charging, up to 36 days in smartwatch mode (90 with solar), and it carries 32GB of storage, multi-band GPS, full-color maps, the ECG app, and an LED flashlight. Two years is exactly the Enduro cadence, so you're at the normal mid-cycle point rather than overdue.
Enduro 2 (August 2022). You have the most to gain. The Enduro 2 shipped with up to 150 hours of GPS and 46 days in smartwatch mode, built on the Fenix 7X platform. Four years on, it's the oldest watch in the line and the most likely to feel a generational gap, especially as newer training and health features land on newer hardware first.
Should you wait? If you own an Enduro 2, probably yes. The Enduro 4 is the first generational jump you would actually feel, and the regulatory timeline points to fall 2026. If you own an Enduro 3, wait for the announcement before deciding. The Enduro 4 will most likely inherit the Fenix 9 platform with its processing and GNSS improvements, but if the display stays MIP and the battery numbers don't move much, there may be little reason to replace a watch that already runs 13 days of GPS on a charge.
One more signal: the Enduro 3 has started showing discounts, down to $874.99 from its $899.99 list price. Garmin rarely trims the price of a current model this early without a replacement already in the pipeline.
The Bottom Line
The Enduro 4 missed the August 25 event, but the evidence trail says it's still coming: two unidentified outdoor devices in the regulatory pipeline, internal device 5179 still present in Garmin Connect under the GOBI codename, and the historical August cadence suggesting Garmin simply shifted the launch a few weeks later.
When this article was last updated there was no pricing, no official specs, and no confirmed launch date. That changed on October 6, 2026: the Enduro 4 is official at $899.99, with sales from October 9.
We'll update this article as more information becomes available. Stay tuned to WatchesReviewed for full coverage.
