Samsung Wallet steps into the car‑key arena
Samsung has announced that its Wallet app can now act as a digital key for a handful of General Motors (GM) vehicles, starting with a range of Cadillac electric models. The feature is live today for users in the United States and Canada who own a compatible Galaxy device. While the service isn’t yet available in the UK, the announcement signals that Samsung is serious about turning the smartphone into a universal access point for everyday essentials – from payment cards to car doors.
Which cars are covered?
The first rollout targets Cadillac’s newest electric lineup:
- 2025‑2027 Cadillac LYRIQ – GM’s flagship EV that launched in late 2024.
- 2026‑2027 Cadillac OPTIQ – a sport‑oriented electric sedan slated for early 2026.
- 2027 Cadillac VISTIQ – a premium crossover expected later in 2027. Samsung says additional GM models will be added by the end of the calendar year, although no specific dates have been disclosed.
Who can use it?
Only phones that support Ultra‑Wideband (UWB) or Bluetooth Low Energy (BLE) can act as a digital key. Samsung lists the following devices as compatible:
- Galaxy S23 Ultra, S24 Ultra, S25 Ultra (and the Edge variants)
- Galaxy S26 +, S26 Ultra and newer
- Galaxy Z Fold series from the second generation onward, including the latest Z Fold8 Ultra
- Select Note models such as the Note 20 Ultra
If your device lacks UWB, BLE still enables the basic lock/unlock/start functions, though the seamless “auto‑unlock as you walk up” experience requires UWB.
How the technology works
When a supported phone is paired with a GM vehicle, the Digital Key is stored in the phone’s embedded Secure Element (eSE) – a tamper‑resistant chip that isolates sensitive data from the rest of the system. Samsung layers additional protection via its Knox security platform, and the key meets the EAL6+2 certification, a high‑grade benchmark for resistance to sophisticated attacks.
In practice, the workflow is simple:
- Add the key – Open Samsung Wallet, tap Add Digital Key, and follow the on‑screen prompts to pair with the car via NFC or a QR code.
- Approach the vehicle – With UWB enabled, the phone automatically unlocks the door as you get within a few centimetres, no need to tap the screen.
- Start the engine – Press the start button on the dash; the phone transmits the necessary authentication over BLE.
- Leave the car – Walk away and the phone sends a lock command, securing the vehicle.
If you need to hand the car to a friend, the Wallet app lets you share the key with granular permissions (e.g., “can drive for 24 hours”). Should the phone be misplaced, you can suspend or delete the key remotely via Samsung Find on a computer, instantly revoking access.
Why this matters for UK Android buyers
Even though the service is currently limited to North America, the move is part of a broader trend where Android manufacturers are positioning their flagships as digital‑key hubs. Samsung has already partnered with Volkswagen, Toyota, Porsche, Mercedes‑Benz, Volvo/Polestar and Audi over the past two years. Each partnership expands the ecosystem, making it more likely that a UK‑based carrier‑bundled Galaxy phone will eventually support local car brands such as Jaguar Land Rover or even upcoming EVs from Polestar UK.
For contract‑deal hunters, this could become a value‑added differentiator. Car‑key functionality is typically marketed as a premium feature in carrier bundles – think of a 5‑year contract that includes a Galaxy S24 Ultra with UWB, a complimentary Samsung Care+ plan, and a digital‑key ready for the next EV you buy. As more manufacturers adopt the standard, the “digital‑key ready” badge may appear in spec sheets, influencing which handset you choose.
Security considerations
Digital car keys raise legitimate concerns about hacking and privacy. Samsung addresses these by:
- Storing the key in hardware (the eSE) rather than in the OS.
- Using Knox to sandbox the Wallet app, preventing other apps from reading the key.
- Requiring biometric authentication (fingerprint or face) before the key can be used, adding a second layer of protection.
- Offering remote revocation via Samsung Find, which is crucial if the device is stolen.
The EAL6+2 rating is noteworthy – it means the device has undergone rigorous testing against side‑channel attacks and other advanced threats. While no system is 100 % fool‑proof, Samsung’s approach is among the most robust in the consumer space.
How to get started (if you’re in the US/Canada)
- Check your phone – Ensure you have a UWB‑enabled Galaxy model and that the OS is Android 14 or newer.
- Update Samsung Wallet – Download the latest version from the Galaxy Store.
- Add the key – Follow the in‑app guide; you’ll need the vehicle’s VIN and a QR code from the car’s infotainment system.
- Test the feature – Walk up to the car with Bluetooth and location services on, and watch the door unlock automatically.
For UK users, keep an eye on Samsung’s press releases and carrier announcements. The company typically rolls out new digital‑key support in waves, often starting with the US market before expanding to Europe.
The road ahead
The automotive industry is rapidly converging on a universal digital‑key standard backed by the Car Connectivity Consortium (CCC). Samsung’s partnership with GM aligns it with that consortium, meaning future updates should be interoperable with other brands that adopt the same protocol. In the UK, the British Standards Institution (BSI) is already consulting on how to certify digital‑key solutions for local road safety and data‑privacy regulations.
If you’re planning to buy a new Galaxy phone in the next few months, consider a model with UWB – it not only future‑proofs you for car‑key use but also opens up other emerging experiences like smart‑home door unlocking and contactless payments at ultra‑fast speeds.
Source: Samsung Mobile Press Release, 7 October 2026
