Garmin has a new battery champion.
On October 6, 2026, Garmin announced the Enduro 4, the latest in its line of GPS watches built for very long efforts like ultramarathons, multi-day hikes and long bike rides. The suggested price is $899.99. Garmin's press release says it is "available now," while Gagadget and Frontpack Sports report that orders opened on October 9. Either way, you can buy it today.
The headline numbers are the same as before: up to 320 hours of GPS tracking and up to 90 days in smartwatch mode, both with solar charging. What is new is inside. Garmin doubled the storage to 64 GB, added 50% more RAM, sped up the maps and brought over new training features.
Here is how it compares with the Enduro 3, and who should buy it.
Key dates
| Date | What happens |
|---|---|
| October 6, 2026 | Garmin announces the Enduro 4 |
| October 6 to 9, 2026 | On sale in the U.S. (Garmin says "available now" on Oct 6; reports say orders opened Oct 9) |
| Now | Enduro 3 still on sale; Garmin has not said if it will be cut or discounted |
Enduro 4 vs Enduro 3 specs
| Garmin Enduro 4 | Garmin Enduro 3 | |
|---|---|---|
| Price | $899.99 suggested | Check current price; Garmin has not announced a change |
| Case size | 51 mm | 51 mm |
| Display | 1.4-inch MIP with solar lens | 1.4-inch MIP with solar lens |
| Lens | Power Sapphire | Sapphire |
| Bezel | Titanium | Titanium |
| Weight | 66 g | 63 g (Garmin's Amazon listing and Frontpack Sports); Gagadget lists both at 66 g |
| Band | New ComfortFit fabric band, QuickFit | UltraFit nylon band |
| Storage | 64 GB | 32 GB |
| RAM | 50% more than Enduro 3 | Baseline |
| GPS battery (solar) | Up to 320 hours | Up to 320 hours |
| Smartwatch battery (solar) | Up to 90 days | Up to 90 days |
| Flashlight | Built-in LED, white and red | Built-in LED |
| Water rating | 10 ATM | Not checked for this article |
| Maps | Built-in routable maps, 30% faster panning, new perspective view | Preloaded TopoActive maps |
A note on the battery numbers. Garmin's figures assume ideal sunlight. The 320-hour claim assumes the watch sits in 50,000 lux light the whole time, using the extended battery activity mode. The 90-day claim assumes all-day wear with three hours a day outside in that same strong light. Gagadget points out that real use will likely give less, especially with the screen and sensors working hard. That is true for both watches, so the comparison still holds.
On weight, sources disagree. Garmin's own Amazon listing for the Enduro 3 says 63 g, and Frontpack Sports also lists 63 g. Gagadget says both weigh 66 g. Garmin lists the Enduro 4 at 66 g. The difference is small either way.
What is new in the Enduro 4
- Double the storage. 64 GB gives you room for more offline maps and music on the watch.
- Faster maps. Garmin says 50% more RAM and an updated map engine make panning about 30% faster. A new perspective view shows more detail close up and farther away.
- Grade-adjusted pace. You can set workout targets based on grade-adjusted pace, so the watch accounts for hills. A grade-adjusted rolling pace shows a fair average on mixed terrain.
- Stamina zones and stamina curve. These show how your stamina drains during an activity and how your endurance changes over time.
- Garmin Epic. This groups activities over days, weeks or months into one story in the Garmin Connect app, with photos and combined health and performance data. Handy for a thru-hike or a training block.
- Rowing and rucking tools. Indoor rowing gets VO2 max and a power curve. Rucking lets you change pack weight mid-activity and set targets like calories burned.
- New band. The ComfortFit fabric band is built to wick moisture and swap quickly with QuickFit.
What has not changed: the 51 mm case, the 1.4-inch MIP screen, the titanium bezel, the flashlight and the battery claims. Gagadget calls it "mostly a software and storage upgrade."
Where each one wins
- Enduro 4 wins on storage, map speed and training tools. If you load large map regions or carry music on long runs, 64 GB is a real step up. The grade-adjusted pace tools are useful if you train or race on hills.
- Enduro 3 wins on value and is slightly lighter by most counts. It has the same battery claims, the same screen and the same rugged build. If it costs less where you shop, it is still a very capable watch.
Which should you buy?
- You want the longest-lasting Garmin and are buying new: get the Enduro 4. It has the same battery as the Enduro 3, more storage and the newest software.
- You already own an Enduro 3: keep it. The battery, screen and case are the same. Most of the upgrade is storage and software.
- You own an Enduro 2 or an older watch: the Enduro 4 is a bigger jump, mainly in storage, maps and training features.
- You want to spend less: look at the Enduro 3. It has the same battery claims and build. Garmin has not said what happens to it, and Frontpack Sports suggests its price could drop.
- You want a bright AMOLED screen: the Enduro line uses an MIP screen to save battery. Gagadget reports the AMOLED Fenix 9 line starts at $999, so expect to pay more and charge more often.
- Wait: if you are not in a rush, wait a few weeks for long-term battery tests and for any Enduro 3 price cuts.
Want to see more watches? Read our best smartwatches guide or use our compare tool.
Other tech news this week
- Google launches the Fitbit Edge on October 12. Read our Fitbit Edge vs Fitbit Air vs Charge 6 article.
- Apple holds its "Welcome home" launch on October 13. See our Apple October 13 event preview.
- Meta Ray-Ban Meta Audio glasses ship on October 13. Read our Ray-Ban Meta Audio vs Gen 3 vs Gen 2 article.
Sources
- Garmin Newsroom: Enduro 4 smartwatch redefines ultraperformance with extreme battery life
- Gagadget: Garmin Enduro 4, $899.99 watch with 64GB and the same huge battery
- Frontpack Sports: Garmin Enduro 4 price, battery life, features and Enduro 3 differences
- Amazon: Garmin Enduro 4 listing
- Amazon: Garmin Enduro 3 listing
Image: Garmin Enduro 4, via Garmin Newsroom.
