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An early open-source project can now reconstruct Apple’s pairing and activation process so an Apple Watch can be set up without an iPhone and linked to Android, Linux, or Windows. Linux and Windows have physically verified pairing, activation, and encrypted reconnection on narrowly specified hardware. Android camera pairing works only with a rooted, supported phone. It is not yet a replacement for the complete Apple Watch and iPhone ecosystem.
What this project actually does
The developers describe the software as one that “reconstructs Apple’s normal pairing and activation flow so the watch can connect, finish setup, and stay linked to a non-Apple device.” AppleInsider reported that work on the project is still “extremely early” in its October 14, 2026 coverage.
The implementation combines a shared Flutter companion application with native Bluetooth and Apple Identity Services (IDS) protocol code. Android uses an Android Bridge for the phone connection and key handling. Linux and Windows use Rust desktop backends, native HCI brokers, and a shared Java engine for pairing, activation, and IDS traffic.
This is a compatibility project, not an official Apple-supported configuration. A successful test on one watch, Bluetooth controller, operating-system build, or phone model does not establish support for every other combination.
#1 Best Overall
![Apple Watch Series 11 [GPS 46mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - M/L. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/416RQ0rtsUL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
Compatibility at a glance
| Platform | Special requirements | Pairing method | Physically verified results | Important gaps |
|---|---|---|---|---|
| Android | An already rooted supported phone. The documented root-HAL example accepts OnePlus CPH2653; the guide does not root the phone. | Camera pairing is available. | Camera-pairing hardware verification is reported, but the tested path depends on the supported rooted phone. | Private or native inputs may prevent a clean build; service coverage is incomplete. |
| Linux | Linux Mint 22.3 was the verification system, with Flutter, Rust, Python 3, JDK 17, CMake, Ninja, clang, GTK3 development files, BlueZ, libusb/libbluetooth development files, and setcap for the HCI broker. | Six-digit code shown by the watch. | Fresh pairing, activation, and saved-pair encrypted reconnect were physically verified on Mint 22.3. | Wi-Fi credential provisioning and application services remain incomplete; notifications, Health, and watch-face management are not fully exposed. |
| Windows | Windows 10 version 2004 or later and a Realtek 0bda:b00e Bluetooth controller. Windows 11 is a build target, not broad hardware verification. | Six-digit code shown by the watch. | PIN entry, activation, and encrypted reconnect were verified on Windows 10 with the specified Realtek controller and watch hardware. | Other Bluetooth controllers and broader service coverage are unverified. |
The hardware and software combination that has been verified
The project documentation snapshot dated October 9, 2026 identifies Apple Watch Ultra 2, model identifier Watch7,5, running watchOS 26.2, build 23S303, as the main verified watch. Those values describe the project’s test device; they do not prove that the same result will work with your watch or that your installed software versions match.
Compatibility with every Apple Watch model is not established. The documentation also cautions against generalizing from the single Linux distribution and Bluetooth adapter used in its tests.
Rank #2
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31caPPnRysL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
How pairing works on each platform
Android: camera pairing with a rooted phone
Android can use the watch’s camera-pairing flow, but the current implementation requires an already rooted supported phone. The documented example is OnePlus CPH2653, and the root-HAL guide assumes the phone is rooted before you begin. It does not provide the rooting procedure.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →- Confirm that your phone is one of the supported rooted devices; the documented example is OnePlus CPH2653.
- Install and build the Android companion and its native components according to the project documentation.
- Start the camera-pairing flow and scan the code displayed by the watch.
- Complete activation and test a reconnect before relying on the watch. The documentation does not claim universal Android service support.
Android is therefore the least plug-and-play route. Root access changes the phone’s security posture, and private or native inputs can block a clean build.
Rank #3
![Apple Watch SE 3 [GPS 40mm] Smartwatch with Starlight Aluminum Case with Starlight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31YiTby0pOL._SL160_.jpg)
- GET SMARTER HEALTH INSIGHTS—Apple Watch SE 3 is an advanced health tracker that helps you better understand your body. The smartwatch sends alerts for an irregular heart rhythm, or an unusually high or low heart rate.* You can view your overnight health tracking metrics with the Vitals app,* track your sleep score, and get sleep apnea notifications.*
- A GREAT FITNESS TRACKER—SE 3 can track your workouts in a healthy number of ways—from running and strength training to simply achieving your 10K steps a day. With real-time metrics and Workout Buddy powered by Apple Intelligence from your nearby iPhone,* you’ll hit your goals like never before.
- KEEP HELP CLOSE AT HAND—SE 3 is a smartwatch that can detect a hard fall or severe car crash and automatically help connect you to emergency services and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- WOMEN’S HEALTH INSIGHTS—SE 3 has advanced sensors that track your wrist temperature while you sleep. With this smartwatch, you can log your periods and symptoms, get period predictions, and get notified of cycle deviations.*
- GREAT BATTERY LIFE AND FASTER CHARGING—Enjoy a smartwatch with all-day, 18-hour battery life* from sunup to sundown. Then charge up to twice as fast as SE 2* and get up to 8 hours of battery in just 15 minutes.*
Linux: six-digit-code pairing
The Linux path was physically tested on Linux Mint 22.3. Before building, the documented toolchain includes Flutter for Linux, Rust, Python 3, JDK 17, CMake, Ninja, clang, GTK3 development files, BlueZ, libusb and libbluetooth development files, plus setcap so the HCI broker can access the Bluetooth interface.
- Prepare the listed development toolchain and Bluetooth packages on the Linux host.
- Build the Flutter companion, Rust backend, native HCI broker, and shared Java protocol engine.
- Put the watch into its pairing flow and enter the six-digit code displayed by the watch.
- Finish activation, then close and reopen the companion to verify saved-pair encrypted reconnection.
That sequence matches the tested capabilities, but it should not be read as a promise that every Linux distribution, kernel, adapter, or Apple Watch model will behave the same way.
Rank #4
![Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminum Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31Gq8SToFJL._SL160_.jpg)
- GET SMARTER HEALTH INSIGHTS—Apple Watch SE 3 is an advanced health tracker that helps you better understand your body. The smartwatch sends alerts for an irregular heart rhythm, or an unusually high or low heart rate.* You can view your overnight health tracking metrics with the Vitals app,* track your sleep score, and get sleep apnea notifications.*
- A GREAT FITNESS TRACKER—SE 3 can track your workouts in a healthy number of ways—from running and strength training to simply achieving your 10K steps a day. With real-time metrics and Workout Buddy powered by Apple Intelligence from your nearby iPhone,* you’ll hit your goals like never before.
- KEEP HELP CLOSE AT HAND—SE 3 is a smartwatch that can detect a hard fall or severe car crash and automatically help connect you to emergency services and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- WOMEN’S HEALTH INSIGHTS—SE 3 has advanced sensors that track your wrist temperature while you sleep. With this smartwatch, you can log your periods and symptoms, get period predictions, and get notified of cycle deviations.*
- GREAT BATTERY LIFE AND FASTER CHARGING—Enjoy a smartwatch with all-day, 18-hour battery life* from sunup to sundown. Then charge up to twice as fast as SE 2* and get up to 8 hours of battery in just 15 minutes.*
Windows: a controller-specific desktop path
Windows verification used Windows 10 version 2004 or later, a Realtek 0bda:b00e Bluetooth controller, and the documented Apple Watch test hardware. The Windows implementation uses a native Rust USB HCI broker together with the shared Java pairing, activation, and IDS engine.
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- Verify that the computer runs Windows 10 version 2004 or later and has the specified Realtek controller.
- Build or install the Windows companion and its native broker as documented by the project.
- Enter the six-digit PIN shown by the watch when the pairing screen requests it.
- Complete activation and test an encrypted reconnect after the initial session ends.
Windows 11 is listed as a build target, but the documentation does not establish broad Windows 11 or third-party-controller support.
Best Value
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/41s72HIk5TL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
What you can and cannot use after setup
The strongest verified result is the connection itself: Linux and Windows have demonstrated fresh pairing, activation, and encrypted reconnect on the stated hardware. That proves the watch can remain linked without an iPhone in those test configurations; it does not provide full parity with Apple’s Watch application.
Desktop application services are still partial. Health data, notifications, Wi-Fi credential provisioning, application services, and watch-face management are not fully exposed through the desktop command contract. Linux specifically still lacks complete Wi-Fi provisioning and application-service coverage. Android’s service coverage is also incomplete, and the documentation does not claim a complete Watch-app replacement on any platform.
Why the “supported” label needs caution
- The primary watch verification is one Apple Watch Ultra 2 (
Watch7,5) on watchOS 26.2 build 23S303. - Linux results come from Linux Mint 22.3, not every Linux distribution.
- Windows results depend on a Realtek 0bda:b00e Bluetooth controller; other adapters are unverified.
- Android requires root and a supported phone implementation; the guide does not root the device for you.
- Project source versions do not establish which versions are installed on your computer or phone.
- No published success-rate, user-count, or failure-rate study establishes how often setups work outside the documented tests.
macOS status
macOS discovery is implemented, but the complete physical pairing, activation, and IDS path remains unfinished. The project therefore does not currently provide the same verified setup claim for a Mac that it provides for the tested Linux and Windows configurations.
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1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsBottom line for prospective users
If you have the exact test hardware and are comfortable compiling experimental software, this project demonstrates that an Apple Watch can be paired and activated without an iPhone. Linux and Windows offer the clearest evidence today; Android is possible but requires root. Treat the watch as an experimental peripheral rather than a fully supported replacement for an iPhone-based setup, especially if you depend on Health, notifications, Wi-Fi provisioning, third-party applications, or complete watch-face management.
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