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watchOS 26: Funktionen, kompatible Apple Watch, Backup, Watch-App

Kompatibilität steht auf apple.com/os/watchos/. Gepaartes iPhone sichern, dann in der Watch-App installieren; manche Features brauchen neuere Uhren oder Apple Intelligence.

Wer nach watchOS 26 Funktionen und Update sucht, prüft meist drei Dinge: steht die Uhr auf Apples Liste, läuft iOS 26 auf dem iPhone, und gibt es ein Backup vor Download in der Watch-App.

Apple published watchOS 26 at WWDC 2025 and lists compatible models on apple.com/os/watchos/. The public build ships as a free update for Apple Watch Series 6 and later, Apple Watch SE (2nd generation) and later, and all Apple Watch Ultra models, paired with iPhone 11 or later running iOS 26. Below follows only Apple release notes and the Watch app install path on iPhone.

6+ Series floor on Apple list
iOS 26 Required on paired iPhone
Watch Install from iPhone app

One OS update, not one feature bundle

Wide install list

Apple lists Apple Watch SE 2 and SE 3, Series 6 through Series 11, and Apple Watch Ultra, Ultra 2, and Ultra 3. Series 5 and the first-generation SE are not on the page.

Some headlines need newer silicon

Apple release notes mark Wrist Flick for Apple Watch Series 9 and later and Apple Watch Ultra 2 and later. Workout Buddy and Live Translation tie to Apple Intelligence on a supported iPhone with matching Siri language settings.

Backup über iPhoneiOS 26 installierenWatch-App-Update

What shipped in watchOS 26 (Apple release notes)

01

Health and sleep

Apple lists Sleep Score and hypertension notifications in the watchOS 26 release notes and newsroom copy.

02

Fitness and Workout Buddy

Release notes describe a redesigned Workout app layout and Workout Buddy, a generative voice for personalized motivation when Apple Intelligence is enabled on the paired phone.

03

Liquid Glass and daily apps

Apple notes Liquid Glass across Smart Stack, Control Center, and the Photos watch face. Notes arrives on Apple Watch; Messages adds Live Translation where Apple Intelligence is supported.

Back up, then install from the iPhone Watch app

  1. 01
    Confirm the pair and backup path

    watchOS 26 requires iPhone 11 or later or iPhone SE (2nd generation or later) on iOS 26. Apple Watch data backs up to the paired iPhone; an encrypted iPhone backup includes watch content. Unpairing in the Watch app creates a backup before the watch resets.

  2. 02
    Charge and connect

    Put Apple Watch on its charger, keep it near the iPhone, and connect both to Wi‑Fi. Release notes warn that insufficient charge or a weak link can stall the download.

  3. 03
    Open Watch app → General → Software Update

    On the iPhone, open the Watch app, tap General, then Software Update. Download and install when watchOS 26 appears. You can enable automatic updates on the same screen for overnight installs.

  4. 04
    Wait for the Apple logo cycle

    Do not force-restart during install. After restart, check Health permissions and Workout settings if you rely on Sleep Score or hypertension notifications.

Compatible models (Apple list)

Apple WatchwatchOS 26Check
SE 2, SE 3ListedNeeds iOS 26 iPhone
Series 6 – 11ListedWrist Flick from Series 9
Ultra, Ultra 2, Ultra 3ListedWaypoint face Ultra-only
Series 5 / SE 1Not listedStay on last supported watchOS

Apple newsroom: watchOS 26 is a free software update for Series 6 or later, SE (2nd generation) and later, and all Ultra models. Installing the OS does not guarantee every headline feature on every chip.

Edges to read

Apple Intelligence features
Apple states Workout Buddy and related intelligence features require supported devices, including listed iPhone models with Apple Intelligence enabled and Siri set to the same supported language.
Regional availability
Apple notes some features may not be available in all languages or regions, and availability may vary due to local laws and regulations.
Next watchOS wave
If your phone is already on a newer iOS generation, read that release’s Watch compatibility before forcing a beta on the watch.
# Official path (Apple Watch app on iPhone)
Pair: iPhone 11+ or SE 2+ on iOS 26
Backup: encrypted iPhone backup or unpair backup
Watch app → General → Software Update → watchOS 26
Charge + Wi‑Fi; keep watch near phone until restart completes

While the watch updates, a quick sync still fits one page

OS install time is a good window for a five-minute standup on the phone you still have free: frogmeet sends a room code — voice plus a whiteboard in the browser. Phone limits: mobile browser notes.

Questions worth checking

Can I install watchOS 26 without updating the iPhone?

No. Apple lists iOS 26 on iPhone 11 or later as a requirement on apple.com/os/watchos/. Update the phone first, then use the Watch app.

Does Workout Buddy work on every listed watch?

Apple ties Workout Buddy to Apple Intelligence on a supported paired iPhone. The watch must be on watchOS 26, but the phone side must meet Apple’s language and device requirements.

Where is the backup if I unpair?

Apple documents that unpairing creates an Apple Watch backup on the iPhone before erasing the watch. Restore by pairing again and choosing to restore from backup.

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