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About Watt Key — For your Tesla

Turn your Wear OS watch into a key fob for your Tesla. This app connects to your Tesla(s) via Bluetooth and allows you to:

* Automatically lock/unlock your car as you walk towards/away from it
* Manually lock/unlock
* Open the frunk
* Open and close the trunk
* Open and close the chargeport

Only works on Tesla's with Bluetooth key functionality: Model 3/Y and the new refresh Model S/X.

To install you can open Google Play Store app on your Wear OS watch and search: "Watt Key" or open Google Play Store in your web browser and search "Watt Key". For some reason the Google Play Store phone app will show the app as incompatible with your devices.

No internet connection is required, just your Wear OS watch with Bluetooth turned on. As the app connects directly to the car, actions are immediate and there's no noticeable delay between pressing the buttons and the car performing the action.

This app runs in the foreground as a service so that it can auto connect to the car as you get close to it. This avoids you having to always wait for the app to connect on every open and command you send. As it's always running in the background it will use a very little amount of power as it's doing low powered scans every so often to look for your car. You must leave this service running and not block the notification or the app will cease to work.

If you have any issues while using the app please email me so I can help: [email protected]

Works best on Samsung Galaxy Watch 4.

This app requires your watch to have Wear OS version 2 or higher. Unfortunately older versions of Galaxy Watch have Tizen OS and not Wear OS so you'll be unable to use this app on those watches.

Language support:
English
Korean
French
German

Security and privacy:
This app generates a secure cryptographic key that it uses to authenticate with your vehicle. This key is stored encrypted on your watch and can only be accessed by the app. At any time you can delete the key or all keys from this app via the Settings menu and also delete them from within the Lock menu on your Tesla.

Disclaimer:
This app is not endorsed by Tesla. Use at your own risk. No guarantees are given as to functionality or uptime as this is very dependent on Tesla. You are responsible for any changes you make to your vehicle using this app.

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Frequently Asked Questions(FAQ)

What can the Watt Key app do?

The Watt Key app can turn your Wear OS watch into a key fob for your Tesla. It allows you to automatically lock/unlock your car, manually lock/unlock, open the frunk, open and close the trunk, and open and close the chargeport.

Which Tesla models are compatible with the Watt Key app?

The Watt Key app only works on Tesla's with Bluetooth key functionality, specifically Model 3/Y and the new refresh Model S/X.

How can I install the Watt Key app?

To install the Watt Key app, you can either open the Google Play Store app on your Wear OS watch and search for "Watt Key" or open Google Play Store in your web browser and search for "Watt Key". Please note that the app may appear as incompatible if you use the Google Play Store phone app.

Is an internet connection required for the Watt Key app?

No, an internet connection is not required. The Watt Key app only requires your Wear OS watch with Bluetooth turned on to connect to your Tesla.

Are there any delays when using the Watt Key app?

No, there is no noticeable delay between pressing the buttons in the app and the car performing the action. The app connects directly to the car, ensuring immediate actions.

How does the Watt Key app run in the background?

The Watt Key app runs in the foreground as a service, allowing it to auto connect to the car as you get close to it. This eliminates the need to wait for the app to connect with every open and command you send. The app uses a very little amount of power as it performs low powered scans periodically to locate your car.

Where can I seek support for any issues with the Watt Key app?

If you experience any issues while using the app, please email [email protected] for assistance.

Which smartwatch works best with the Watt Key app?

The Watt Key app works best on the Samsung Galaxy Watch 4.

What version of Wear OS is required for the Watt Key app?

The Watt Key app requires your watch to have Wear OS version 2 or higher. Unfortunately, older versions of Galaxy Watch with Tizen OS are not compatible with this app.

In which languages is the Watt Key app available?

The Watt Key app supports English, Korean, French, and German languages.

Is the Watt Key app secure and private?

Yes, the app generates a secure cryptographic key that it uses to authenticate with your vehicle. This key is stored encrypted on your watch and can only be accessed by the app, ensuring security and privacy.

Is the Watt Key app officially endorsed by Tesla?

No, the Watt Key app is not endorsed by Tesla. It is advised to use the app at your own risk, as there are no guarantees given for functionality or uptime, as it is highly dependent on Tesla.

Who is responsible for any changes made to the vehicle using the Watt Key app?

You are responsible for any changes you make to your vehicle using the Watt Key app.

Absolutely brilliant. Anyone with a Tesla and Wear OS needs this. This actually sets up as a key- you need to swipe the card and everything- and operates over bluetooth like your phone. There is virtually no...

Jeremiah Anway

Awesome app! Very useful for those random times when I go out to my car and I leave my phone in the house. I might even use it as the primary key for my car now. Thanks for the WearOS love!

Brandon Skandalaris

Very fast access to car. Instant open frunk feature is awesome.

Pawel Szabaciuk

Does exactly as promised. Not cheap, but I think worth ever penny.

Ross Wilson