August Wi-Fi Smart Lock (4th Gen)

Quick verdict

August Wi-Fi Smart Lock (4th Gen) is best for renters who cannot replace their deadbolt. The main appeal is retrofit design fits over existing deadbolt — keep your keys, while the main caveat is cloud-dependent for remote access and most integrations.

Standout: Retrofit design installs over your existing deadbolt in minutes — no locksmith needed.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• retrofit design fits over existing deadbolt — keep your keys
• broad ecosystem support across Apple Home, Google, and Alexa
• built-in Wi-Fi eliminates the need for a separate bridge

Reasons to hesitate

• cloud-dependent for remote access and most integrations
• battery life can suffer with heavy Wi-Fi usage
• no local API for Home Assistant — cloud polling only

Best for

• renters who cannot replace their deadbolt
• multi-ecosystem households wanting broad voice assistant support

Avoid if

• you want fully local smart lock control
• you prioritize long battery life over Wi-Fi convenience

Privacy and local-control notes

Relies on August/Yale cloud for remote access and integrations. Bluetooth provides local proximity control only.

Home Assistant support: supported · integration path: cloud-based.

Buying reality check

Price notes: Mid-range for smart locks; built-in Wi-Fi saves buying a separate bridge.

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