Eufy FamiLock S3 Max vs Philips Wi-Fi Smart Deadbolt DDL242X

The Philips Wi-Fi Smart Deadbolt DDL242X wins overall for most buyers. It costs a fraction of the Eufy FamiLock S3 Max, is better received by owners, carries a longer 2-year warranty, adds Bluetooth alongside built-in Wi-Fi, and offers more entry methods including a fingerprint reader and a physical key. The Eufy is the better choice only if you specifically want its built-in video doorbell and broader platform support.

The camera. The Eufy FamiLock S3 Max is a lock and a doorbell in one, with 2K video, night vision, motion detection and internal storage, plus an interior screen that works as a digital peephole. The Philips Wi-Fi Smart Deadbolt DDL242X is purely a deadbolt, with no camera or doorbell, and puts its effort into fingerprint entry, keypad codes and hassle-free Wi-Fi access.

The Eufy FamiLock S3 Max, by a wide margin. It supports Alexa, Google Home, Apple HomeKit, SmartThings, Home Assistant and Matter. The Philips Wi-Fi Smart Deadbolt DDL242X is limited to Alexa and Google Home, with no HomeKit, SmartThings, Home Assistant or Matter, so a HomeKit household should look at the Eufy.

The Eufy FamiLock S3 Max uses a built-in rechargeable battery rated at about 4 months, with 4 AAA cells as an emergency backup. The Philips Wi-Fi Smart Deadbolt DDL242X runs on 8 AA batteries with no backup pack, so you carry spares instead of recharging, and both locks warn you before the battery runs down.

Buy the Philips Wi-Fi Smart Deadbolt DDL242X if you want dependable keyless entry without paying flagship money. Fingerprint, keypad, app, voice and a hidden physical key cover every situation, Wi-Fi is built in so there is no bridge to fail, scheduled codes suit cleaners and guests, and the 2-year warranty is the longer of the two.

Buy the Eufy FamiLock S3 Max if you want to replace a lock, a video doorbell and a peephole with a single device, and you value HomeKit, SmartThings, Home Assistant or Matter support. Its 2K camera records to local storage with no subscription, and the interior screen is genuinely useful in households with kids or elderly family.