Aqara Smart Lock U200 vs Eufy Security Smart Lock S230

The Eufy Security Smart Lock S230 is the stronger overall pick, with a lower price, a higher owner rating, a longer warranty and longer battery life than the Aqara Smart Lock U200. The Aqara wins back ground on integrations and unlock methods, but the Eufy is the more dependable, better-reviewed lock of the two.

Installation and ecosystem reach. The Aqara Smart Lock U200 is a retrofit lock that mounts behind your existing exterior cylinder and connects to Apple HomeKit, SmartThings, Home Assistant, IFTTT and Matter over Thread, while the Eufy Security Smart Lock S230 replaces the whole deadbolt, needs no hub for remote access over its built-in Wi-Fi, and sticks to Google Home and Alexa.

The Aqara Smart Lock U200, by a wide margin. Alongside fingerprint and passcode entry shared with the Eufy Security Smart Lock S230, it adds NFC, Bluetooth and Apple Home Key, all things the Eufy does not offer.

The Eufy Security Smart Lock S230 has the edge on both: its rechargeable built-in battery is rated for about a year versus roughly six months for the Aqara Smart Lock U200, and its warranty runs longer as well.

Buyers in an Apple Home or multi-platform household who want the most unlock methods and the widest smart-home compatibility on a retrofit install, and who are comfortable troubleshooting an occasional calibration or reliability issue.

Buyers who want a dependable, hub-free fingerprint deadbolt with a stronger track record and a simpler feature set focused on Google Home or Alexa, without needing Apple HomeKit or the U200's extra entry methods.