US
August

August Wi-Fi Smart Lock AUG-SL05-M01-S01

  • Single cylinder deadbolt retrofit, mounts on the interior side only
  • Built-in Wi-Fi, 802.11 b/g/n on 2.4GHz or 5GHz
  • Alexa, Google Assistant, Apple HomeKit, SmartThings voice and home links
  • Auto-Lock and optional Auto-Unlock, with DoorSense
  • About 10 minutes to install, per August
  • Smart Keypad sold separately for code entry
  • iOS or Android phone required for the free August app

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A sound choice for anyone who wants app and voice control without changing the outside of the door. Battery details are missing from the listing, so check them before you commit.

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ASIN: B082VXK9CKCategory: Deadbolts

Overview

An interior thumbturn unit fits over your existing single cylinder deadbolt, leaving the outside key cylinder in place. Built-in Wi-Fi links it to the August app, which locks, unlocks and shares access from a phone.

Retrofitting the inside of the door gives renters and homeowners smart locking with no change to the exterior hardware or keys.

Who it's for

Front doors with a working single cylinder deadbolt and a home Wi-Fi network are the target. Households that want keypad codes from day one, or have no smartphone, should plan to add the separate keypad or look elsewhere.

Pros and cons

Pros
  • Exterior door hardware stays unchanged
  • Works with Alexa, Google Assistant and HomeKit
  • Scheduled or temporary guest access from the app
  • Auto-Lock secures the door after closing
Cons
  • Keypad for code entry sold separately
  • Requires a smartphone and home Wi-Fi
  • Battery type and life not listed
  • Only covers single cylinder deadbolts

Performance notes

Remote commands and voice assistant links travel over the home Wi-Fi, so signal strength at the door governs how dependable they feel. Auto-Lock relies on DoorSense to know the door has closed before it secures it. Fit depends on how the unit lines up over your current deadbolt thumbturn.

Specifications

BrandAugust
Dimensions & fit
Item Weight0.4 pounds
Item Dimensions2.8 × 2.8 × 2.7 inches
Construction & materials
Material TypeMetal
Finish TypesBrushed
ColorSilver
Compatibility & installation
Connectivity ProtocolWi-Fi
Included components
Number Of Pieces1
Unit Count1
Number Of Packs1
Included ComponentsAugust Wi-Fi Smart Lock, Batteries, Mounting Hardware
Other details
Lock TypeBiometric, Deadbolt, Smart Lock, Wi-Fi
ShapeRound
Control TypeVoice
Number Of Items1
Additional FeaturesBiometric Verification, No Hub Needed, Retrofits To Your Existing Deadbolt
Style NameWiFi Smart Lock
Recommended Uses For ProductDoor
Item Type NameSmart Lock
Controller TypeAmazon Alexa, Google Assistant, Vera

Frequently asked questions

Does the August Wi-Fi Smart Lock replace my deadbolt?

No. It mounts on the inside of the door over most single cylinder deadbolts, and the exterior lock and keys stay as they are.

Can I unlock the August Wi-Fi Smart Lock with a code?

Only with the August Smart Keypad, which is sold separately. Without it, access is through the app, a voice assistant or your key.

How do I give a guest access with the August Wi-Fi Smart Lock?

The free August app lets you share permanent, scheduled or temporary access with people you trust.