August · Smart Lock
August WiFi Smart Lock (4th Gen)
~C$315
The August WiFi Smart Lock (4th Gen) is a retrofit smart lock that fits over your existing deadbolt — no need to replace the entire lock or change your keys. Built-in WiFi means no separate hub is required for remote access, auto-lock, and activity logging. DoorSense technology tells you whether your door is securely closed, not just locked. Works with Alexa, Google Assistant, and Apple HomeKit for voice control and home automations.
Read on Celmin Magazine →Pros
- + Retrofit design (keep your keys)
- + Built-in WiFi
- + Auto-lock/unlock
- + Works with all platforms
- + DoorSense sensor
Cons
- - Battery life varies
- - Bulky on inside
- - WiFi can be slow
Key Specs
- Dimensions
- 7.3 x 5.9 x 5.9 cm
- Weight
- 227g
- Battery
- CR123A (6 months)
- Lock Type
- Retrofit deadbolt
- Compatible
- Alexa, Google, HomeKit
- Connectivity
- WiFi, Bluetooth
Our Verdict
The best retrofit smart lock — you keep your existing keys and deadbolt while adding smart features. Built-in WiFi means no extra bridge needed.
Best For
Renters and homeowners who want smart lock features without replacing their existing deadbolt or giving up physical keys.
How It Compares
| Spec | August WiFi Smart Lock (4th Gen) | Ring Video Doorbell 4 |
|---|---|---|
| Price | ~C$315 | ~C$270 |
| Battery | CR123A (6 months) | — |
| Lock Type | Retrofit deadbolt | — |
| Compatible | Alexa, Google, HomeKit | — |
| Connectivity | WiFi, Bluetooth | — |
| FOV | — | 160 degrees |
| Power | — | Battery or hardwired |
| Video | — | 1080p HD |
| Night Vision | — | Color |
Frequently Asked Questions
Can I still use my regular key?
Yes, the August lock fits over your existing deadbolt. Your physical key still works from the outside.
Does auto-unlock work reliably?
It uses your phone's GPS to detect when you're approaching. It works well most of the time but can occasionally be slow or trigger early.
How long do batteries last?
About 3-6 months depending on usage. The lock uses two CR123A batteries and alerts you when they're low.
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