Anker's Eufy Smart Lock E31 Has $40 off at Amazon

Matter-compatible smart door locks are the perfect way to keep your home safe and secure, allowing you to control your locks from a single voice command or app. Right now, Prime members upgrade their home security for less, with $40 off Anker's Eufy Smart Lock E31 at Amazon.

Matter-Compatible Eufy Smart Lock E31 Works with SmartThings, Apple Home, and Google Home

The main selling point of this smart lock is its Matter support, making it simple to integrate with Apple Home, Google Home, and SmartThings. There are five entry methods to choose from, unlike some simpler smart locks which offer just four methods. You can unlock your front — or back — door in under 0.3 seconds using your fingerprint, a passcode, a regular key, or the companion app, or use a voice command via Alexa, Siri, or Google Assistant.

Up to 14 Months' Battery Life with Low Battery Notifications

The included rechargeable battery lasts up to 14 months, though it's important to note that battery life will depend on how often you enter and leave your home every day. The suggested battery life is based on ten unlocks a day.

When the battery runs low, it's easy to recharge it and you'll get a notification on your device once it reaches 20% battery, so you don't need to worry about your lock failing. There's also Power Save mode which gives you an additional month of battery life when activated.

Simple Setup with the Matter QR Pairing Code

It's quick and easy to get started with this smart lock — Anker says it will take just 15 minutes to install, with no drilling required. Once it's installed, just scan the included Matter QR pairing code to get the smart lock set up and running on your Thread network — it works with your existing hub. Can't find the pairing code? You can also set up your device by entering the series number (SN) in the Eufy Security app.

The Eufy Smart Lock E31 comes with 18 months of electronic protection and 36 months of mechanical coverage, for peace of mind, and its sleek design looks at home on both modern and more traditional doors.

We named its predecessor, the Eufy Smart Lock E30, as one of our best Matter-compatible smart door locks. This latest version gives you extended battery life of up to 14 months compared to eight months.

Prime members can grab the Eufy Smart Lock E31 today from Amazon for $140, saving $40 off the regular $180 price — that's a 22% saving that anyone serious about smart home security can't afford to miss. For complete home security, you might also want to check out our guide to the best Matter-compatible door and window sensors.