What's new in 15.10

Here are the major highlights

April 2, 2026

💳 Wear OS keycard

Your Wear OS watch can now act as a keycard!

Simply tap it against the driver's door pillar to lock or unlock your vehicle.

For security, your watch must be unlocked.

Requires Watch Key and an NFC-capable watch

Supports Model 3, Model Y, Cybertruck and 2021+ Model S and Model X

⚡ Charging session fee support

You can now track costs for chargers that bill per charging session.

To define a session fee, visit Saved Locations > (Location) > Costs.

🛜 Internet status

Tessie can now monitor the status of internet connectivity in your Tesla.

Select your vehicle's name and the status will be displayed in the top right corner.

The status can also be obtained through the Tessie API using this endpoint.

Connectivity statuses:

🔋 Improved battery drain measurement

Phantom drain is now calculated up to 2 decimal points to reveal small changes.

Not compatible with legacy Model S/X using MCU1

🔑 Automatic key pairing

Phone Key and Watch Key can now be paired wirelessly without a keycard.

⭐ Refinements

Various minor visual improvements and bug fixes.

View all release notes →

Unleash your Tesla. Try it for free and experience Tessie for yourself.