Do Smartwatches Get Security Patches and Why Does It Matter?

How a smartwatch receives security patches

Yes, a smartwatch gets security patches, but the delivery system is not identical to a phone. The platform vendor or the maker builds a corrected version, then sends it through the companion app on your phone. Apple's instructions for the ECG app show the pattern: before using the feature, update your iPhone to the latest version of iOS and your Apple Watch to the latest version of watchOS. The phone and the watch are treated as a single system for software behavior.

On Android-compatible watches, Wear OS by Google is one shared platform. The update can come from Google for the operating system and from the individual maker for the hardware. You usually install it through the companion app with the watch on the charger. If an update is available, let it finish before wearing the watch again. For more detail, see operating system updates.

• Open the companion app and check for a system update.
• Keep the watch charged and close to the phone during installation.
• Update the phone app first if the watch asks you to.
• Restart the watch before trying again if an update seems stuck.

Platforms and update policies

watchOS and Wear OS are the main full smartwatch platforms most buyers will encounter. Apple Watch models run watchOS, while many Android-compatible watches run Wear OS by Google. Wear OS's own product page lists Google apps such as Gmail, Google Calendar, Google Maps, Google Wallet, and YouTube Music on the wrist. Every one of those apps touches personal data, so the update policy matters.

Do the platforms publish a central schedule? Not exactly. Apple and Google publish software versions, and makers explain support on their own pages. For a specific model, the maker's support page is more useful than a generic promise. If a maker will not say how long a watch gets updates, treat that as a warning. Start with smartwatch platform and then look at the maker's release notes.

What happens when a watch stops getting updates

An unsupported watch is one that no longer receives new security patches. It can still run, but it stays fixed at the last version the maker shipped. Many watches connect to a phone over Bluetooth, and Bluetooth technology uses radios in the 2.4 GHz ISM band with both Classic and LE options. That connection code is part of the attack surface. When a vendor stops patching it, known flaws can remain open.

The practical risk depends on what you do with the watch. A watch with payments, messages, maps, or a microphone is more sensitive than one that only shows steps and the time. If the operating system is no longer corrected, a problem in one of those features can affect more than the watch because it is paired to your phone. Read Bluetooth security and payment safety.

Health, payments, and children's data change the risk

Health features raise the stakes. Many watch features are general wellness tools: activity tracking, sleep habits, and fitness coaching. The FDA's general wellness policy says software intended for maintaining or encouraging a healthy lifestyle, when unrelated to diagnosing, curing, mitigating, preventing, or treating a disease, is not a device. The FDA also explains that its device software policies are function-specific and apply across platforms. In plain terms, many watch features are not reviewed as medical products, so the maker's security commitment is your main protection.

Payments add another layer. Google's Wear OS page promotes Google Wallet for contactless payments, and a watch that can pay needs current security fixes, a passcode, and a way to lock it if lost. Keep payment-enabled watches updated and treat them like a wallet on your wrist.

For children, an unpatched watch is a privacy concern. The FTC says sites and online services directed to children under 13 must get a parent's consent before collecting, using, or disclosing personal information, which can include a child's full name, location, photos, videos, audio, biometric identifiers, and persistent identifiers. A kids' smartwatch is a wearable online service. If it stops getting updates, it may still collect that information without ongoing fixes. Review a kids smartwatch privacy checklist before choosing one.

What to look for when buying

If security matters to you, make it part of the purchase decision. The strongest predictor of future patches is the platform and the maker's track record. For a full-featured watch, that often points toward best Wear OS smartwatches or best Apple smartwatches; for fitness-first use, consider fitness-first options.

• Choose a platform that still publishes updates for older models.
• Ask how long the model will receive security patches, not just new features.
• For kids, look for parental controls, approved contacts, and a published privacy policy.
• For payments, require a passcode and a platform that takes security patches seriously.
• Remember that an older watch may not get the next operating system version; read older smartwatch and new OS and smartwatch lifespan.

Keep the watch you own updated

If you already own a watch, keep it updated as long as updates are offered. Install companion app updates, approve the watch update, and keep it on the charger while it installs. Apple's own instructions for health features tell you to update to the latest iOS and watchOS before using them. That same habit protects any platform. Updates can arrive automatically if the maker enables it; see automatic updates.

Once updates stop, decide what still belongs on the watch. Time, activity, and workouts are lower risk. Payments, messages, health uploads, and children's data are not a good fit for an unsupported device. An old watch can still be useful, but know where the line is. Learn more in end of support.

What to pick for your use

Questions

Do all smartwatches receive security patches?

No. Security patches depend on the maker's support policy. Some platforms update for years; others stop quickly. Check the maker's support page before buying, and check again while you own the watch.

Do security patches install automatically?

Not always. Some watches update through the companion app when they are charging; others ask you to approve. You usually need both the phone app and the watch software to be current.

Can I update an unsupported smartwatch?

You can install the last released version, but once support ends there will be no new patches. Unofficial builds can introduce more risk, so they are not a good substitute for official support.

Are watchOS and Wear OS the only platforms that matter?

No. Fitness-focused makers update their own firmware as well. The question is not the platform name; it is whether the maker still publishes fixes and says how long support lasts.

Do kids' smartwatches need security patches?

Yes. A children's watch may collect location, audio, photos, and approved contacts. The FTC gives parents control over that kind of information, but the maker still has to protect the device.

Should I keep using a watch after updates stop?

For simple fitness tracking, an old watch can still be fine. For payments, messages, health uploads, or a child's location, an unsupported watch is a poor place for sensitive data.