Android digital car key: What it is and how to use it
- Android digital car key lets you unlock and start your vehicle with your phone, similar to Apple's CarKey.
- The feature relies on NFC or UWB tech in newer smartphones, supporting quick entry and remote controls.
- It's compatible with select Android phones and numerous vehicles from various automakers.
Yes, it's true -- the Android digital car key opens new doors for cars -- literally. The feature lets you unlock and/or start your vehicle using an Android phone. Google introduced the feature in 2021 alongside Android 12, just a year after Apple announced CarKey. Support continues to be relatively rare among car models, but the feature is likely to spread and even become de facto as the industry evolves. It should be accelerated by the adoption of EVs, since their buyers have come to expect high-tech conveniences.
But how does Android digital car key work? And which phones and vehicles are compatible? We'll cover those questions in this guide, including some details you may not have considered.
Everything you need to know about Android Automotive and how it differs to Android Auto.
How does Android digital car key work?
A breakdown on both the hardware and software
On a hardware level, the feature relies mostly on two technologies in modern smartphones: NFC (near-field communications) and/or UWB (ultra-wideband). You're probably familiar with NFC if you use Google Wallet in stores, but UWB is less common, mostly found on higher-end Google and Samsung devices. Beyond car keys, UWB also aids in Android's Quick Share file transfers.
A car will automatically unlock when you approach, start when you get in, and/or lock when you get out.
Once you've met device and vehicle requirements (see below), a key is generated for Google Wallet or Samsung Wallet using an automaker's app, an email link, or in rarer cases, a vehicle's head unit (dashboard display). NFC-based keys require swiping your phone in front of an embedded reader, such as one in a door handle or ignition system. UWB has slightly longer range, and enables something Google dubs "passive entry" -- meaning a car will automatically unlock when you approach, start when you get in, and/or lock when you get out. Not every vehicle supports UWB, but those that do will always offer NFC as a backup.
As you own a compatible phone and car, setting up an Android Auto wireless adapter will save you some cable hassle.
For security purposes, you can choose to disable passive entry, or toggle whether your phone needs to be unlocked for a key to work. The latter option can be limited to specific tasks -- you might require a phone unlock to get into your car, but not to start it once you're in the driver's seat.
You may also have access to remote controls for locking or unlocking a car, triggering its alarm, or popping the trunk. These depend on your car model, but note that all of Google's remote options use Bluetooth instead of NFC or UWB. You can't use Wi-Fi or cellular either, so there's no controlling your car from across town or across the country.
What are the requirements for Android digital car key?
Compatibility varies
The first thing is a compatible Android phone. That means:
- All Google Pixel phones from the Pixel 6 onwards, including Fold models.
- Many Samsung S- and Z-series phones from the Galaxy S21+ onwards. As a rule, though, you'll be setting up a Digital Key in Samsung Wallet.
- Other select devices running Android 12 or later. Check your phone manufacturer's website.
As for vehicles, they have to specifically support Android-based keys, both in terms of wireless chips and software. If you're not sure that a car supports it, check the manufacturer's website for any references to digital keys.
The R2-4K Pro comes with lots of features inside a compact and convenient package.
Which vehicles support Android digital car key?
Specificity unconfirmed
While many vehicles still lack any support for digital keys, whether Android-based, Apple-based, or proprietary, the number of automakers that have at least one compatible model is substantial. In fact, there's no longer any easy way of keeping tabs, so we'll simply list all the major brands with some form of digital key. Be sure to verify Android compatibility if it's an important factor when shopping. BMW, Genesis, and Hyundai are among the confirmed backers for Google's format.
- Audi
- Acura
- BMW
- Buick
- Cadillac
- Chevrolet
- Chrysler
- Dodge
- Fiat
- Ford
- Genesis
- GMC
- Honda
- Hyundai
- Infiniti
- Jeep
- Kia
- Land Rover
- Lexus
- Lucid
- Mazda
- Mercedes-Benz
- Mini
- Nissan
- Porsche
- Ram
- Rivian
- Subaru
- Tesla
- Toyota
- Volkswagen
- Volvo
With car connectivity, your iPhone seems to really do it all. Support for it is still relatively limited, but should continue to grow.
FAQ
Q: Can I use Android digital car key if my phone's battery dies?
Believe it or not, the answer is yes -- in some circumstances. Google explains that NFC may still work "for a few hours" after your phone's battery dies. That's not guaranteed however, and you're definitely out of luck if you've set your key to require a phone unlock. In short, don't rely exclusively on your Android key when you leave home.
Q: Can I share an Android digital car key?
Yes, you can. With Google Wallet, this typically means selecting the key and tapping Share car key. Sharing can be done direct with contacts or through a third-party app. The other person may have to authenticate their key using an activation code, a physical key, or a car's dashboard interface. Additionally, there may be the option of restricting someone's key so they can't drive your vehicle 24/7.