Product-Review-Crew
Best Retrofit Smart Lock

August Wi-Fi Smart Lock

The August Wi-Fi Smart Lock is the ideal solution for renters or anyone wanting to add smart features to their current lock without replacing the entire deadbolt or keys.

August Wi-Fi Smart Lock – buy now
4.1(793 reviews)
$199 - $209

via Amazon.com

Check Price at Amazon

As an Amazon Associate, we may earn from qualifying purchases at no extra cost to you.

Pros
  • +Retrofit design installs over an existing deadbolt without changing keys or exterior hardware
  • +Offers robust smart home integrations with Alexa, Google Home, and Apple Home
  • +Includes DoorSense for open/close notifications and provides detailed activity logs
Cons
  • Bulkier interior design compared to full replacement locks and some sleeker adapters
  • Rechargeable battery requires more frequent charging than standard battery-powered models
  • Auto-unlock feature via geofencing can be unreliable, sometimes triggering at the wrong time
See how this compares to similar productsFull Comparison →

The August Wi-Fi Smart Lock is the definitive choice for a retrofit smart lock, designed to augment an existing deadbolt rather than replace it. This approach offers significant advantages: installation is straightforward, typically requiring only a screwdriver and a few minutes, and it preserves the existing keyway and keys, making it perfect for rental properties or those who like their current hardware. Despite its add-on nature, it doesn't skimp on features. It provides built-in Wi-Fi for remote access, comprehensive activity logs, and the ability to create and manage temporary guest access passes—a boon for hosts or allowing access to service providers. The included DoorSense module attaches to the door frame to detect whether the door is open or closed, enabling accurate auto-lock schedules and sending alerts if the door is left ajar. Compatibility is broad, working with Amazon Alexa, Google Assistant, and Apple Home. The main trade-offs are aesthetic and maintenance-related. The interior unit is bulkier than a standard thumb turn, and its rechargeable battery pack needs to be topped up every few months, unlike locks with multi-year disposable batteries. Some users also report that the auto-unlock feature, which uses geofencing to unlock as you approach, can be inconsistent. For those seeking a non-invasive, feature-rich way to modernize their door security, the August Wi-Fi Smart Lock remains a top-tier and highly convenient option.

Last updated:

James CarterSenior Tech Reviewer

James has reviewed consumer electronics and gadgets for over 6 years. He specializes in audio equipment, cameras, and smart home devices.

Product FAQs

Yes, for most buyers. The August Wi-Fi Smart Lock stands out for: Retrofit design installs over an existing deadbolt without changing keys or exterior hardware and Offers robust smart home integrations with Alexa, Google Home, and Apple Home. The main trade-offs are Bulkier interior design compared to full replacement locks and some sleeker adapters. Check our full Electronics and Gadgets comparison for alternatives.