watchOS 26 compatibility: which Apple Watches get the 2025 update

Upgrading to watchOS 26? Start with compatibility. Before you rush into downloading the latest update, it’s important to know which models actually support it and what limitations may exist on older hardware. This clear, model-by-model guide walks you through watchOS 26 compatibility, supported devices, iPhone pairing requirements, and the exact steps for updating safely. You’ll also see how to back up your Health data, confirm storage and battery levels, and troubleshoot if something goes wrong. Finally, we’ll cover whether a rollback is possible without losing your history. No fluff and just the decisions you need right now.

Which Apple Watches get watchOS 26?

Apple typically extends support to several older models, but every few years, some devices fall off the list. For watchOS 26, released in 2025, compatibility covers these models:

• Apple Watch Ultra 2 and Ultra (full feature support)
• Apple Watch Series 9, Series 8, and Series 7 (strong support, all new features)
• Apple Watch SE (1st and 2nd generation, though some advanced sensors aren’t available)
• Apple Watch Series 6 (still supported, though feature rollout is limited)

Notably, Series 5 and earlier models are no longer included in the update path. This is expected since hardware from 2019 and older can’t reliably handle the new software load.

For users still on Series 6, watchOS 26 will run. But features tied to newer sensors like advanced temperature logging or updated low-power workout tracking may not appear. That’s the trade-off: supported devices stay current for security and most features, but older hardware doesn’t get everything.

If you’re searching “which Apple Watches get watchOS 26,” this list is the answer: Series 6 and newer are supported.

watchOS 26 iPhone requirements

Your Apple Watch can’t update on its own because it depends on your paired iPhone. For watchOS 26, you’ll need an iPhone running iOS 19 or later. That means iPhone 12 and newer are supported; iPhone 11 and earlier cannot run the required iOS version.

This requirement is just as important as the watch itself. If your iPhone isn’t compatible, you won’t be able to download or install watchOS 26 on your Apple Watch.

If you’ve been wondering about “watchOS 26 iPhone requirements,” the short version is: iPhone 12 or later, running iOS 19.

Pre-update checklist

Before pressing install, take a few minutes to prepare your device. These steps prevent failed updates and protect your Health data.

1. Check storage space
   • Go to Settings → General → Storage on your Apple Watch. Updates usually require at least 3–4 GB free. Delete unused apps or old music to make space.
2. Charge the battery
   • Your watch needs at least 50% charge and should stay on its charger throughout the update. A low battery can cause interruptions.
3. Connect to Wi-Fi
   • Stable Wi-Fi speeds up the download and ensures the installation package doesn’t fail.
4. Backup your watch
   • Apple Watch data is included in your paired iPhone backup. Use iCloud or connect your iPhone to a computer and run a manual backup before starting.
   • This is the key step that safeguards Health and fitness data if something goes wrong.

How to update to watchOS 26

When you’re ready, here’s the simplest way to install watchOS 26:

1. Place your Apple Watch on its charger and keep it there.
2. On your paired iPhone, open the Watch app.
3. Tap General → Software Update.
4. Now if you can see that watchOS 26 is available, then tap Download and Install option.
5. Enter your iPhone passcode if asked and wait.

The update can take anywhere from 30 minutes to over an hour, depending on your model and Wi-Fi speed. Patience is key and don’t remove the watch from the charger until it restarts on its own.

After installing watchOS 26, refresh your look in seconds with Apple Watch faces. A new update is the perfect time to try out fresh designs that match your style.

Verification and troubleshooting

Once your watch restarts, you’ll want to confirm that watchOS 26 is running. Go to Settings → General → About on your watch and look for “Version 26.x.x.”

If the update seems stuck (like showing only the Apple logo for a long time), don’t panic. Try a force restart: hold both the side button and Digital Crown until you see the logo again. If performance feels slow afterward, give it a day because indexing and background syncing often take time.

If you get the problems frequently, start with unpairing and then re-pair your watch with the iPhone. This is a good way to clear any update glitches without losing your Health records.

Rollback and data safety

Now most people ask if it’s possible to roll back from watchOS 26 to an earlier version. Officially, Apple doesn’t allow downgrades on Apple Watch. However, Apple Support can sometimes reinstall the prior version in special cases through a service appointment.

The important point: your Health data is safe. Since backups live with your iPhone or iCloud, even if the watch needs servicing, your history remains intact. That’s why the pre-update backup step is worth the extra few minutes.

Life after the update

Now as you’re on watchOS 26, your Apple Watch is surely helpful for workouts, notifications, and daily organization. Software updates are here to extend the life of your device and keep it secure against new threats.

And there’s a lighter side, too. Sharing your watchOS 26 upgrade with friends? Add some flair using WhatsApp stickers. It’s a small way to bring fun into your upgrade story.

Compatibility might sound technical, but really, it’s about keeping your watch useful for longer. The bottom line is simple: if you own a Series 6 or newer Apple Watch, paired with an iPhone 12 or later, you’re set for the 2025 update.

So, run through the checklist, back up your data, and install confidently. WatchOS 26 compatibility matters because it decides how long your Apple Watch stays current. With the right steps, the upgrade process is smooth, safe, and even a little fun.