The Garmin Enduro 4 has officially leaked, and this time Garmin itself accidentally confirmed it.
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.
What the Leak Shows
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 Will It Launch?
The Enduro release pattern was consistent, right up until it wasn't:
- Enduro 2: August 2022
- Enduro 3: August 2024
- Enduro 4: Expected August 2026... actually a no-show at the August 25 event
Two years in a row pointed to an August launch, 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.
No pricing, official specs, or confirmed launch date yet. But if the regulatory timeline holds, fall 2026 is when the Enduro 4 lands.
We'll update this article as more information becomes available. Stay tuned to WatchesReviewed for full coverage.