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August Home 3rd Gen Smart Lock Review: Who It Fits and Who Should Skip It

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This august home 3rd gen smart lock review looks at how August replaces your interior thumbturn to keep your existing deadbolt secure. The device measures 2.6 inches wide and weighs 13.9 ounces, fitting most single-cylinder deadbolts. You control it via the August app on your phone or Apple Watch. It also retains a physical key slot for backup access. The silver finish matches standard hardware. This setup lets you lock and unlock your door without carrying keys, while preserving the look of your exterior door. Installation takes about ten minutes for most users.

What stands out

  • Replaces interior thumbturn only
  • App and Apple Watch control
  • Auto-unlock and auto-lock features
  • Physical key backup included
  • Fits most single cylinder deadbolts

Who it fits

Good fit for

This lock suits renters who want to upgrade their security without changing the exterior door hardware. The ability to take the smart module with you when you move makes it ideal for apartment dwellers. If you often carry groceries or kids, the auto-unlock feature provides hands-free entry. Users who prefer using their phone or watch to enter their home will appreciate the app-based access. It is also good for those who want to keep a physical key as a backup option.

Who should skip it

You should look elsewhere if you need a keypad entry system. This model does not include a built-in number pad for code entry. It also lacks a built-in camera for video monitoring. If you want to see who is at your door before unlocking, this device will not help. Additionally, if your door does not have a standard single cylinder deadbolt, this lock may not fit. Users requiring a complete lock replacement rather than a retrofit should consider other options.

Verdict: The August Home 3rd Gen Smart Lock offers a convenient retrofit solution for standard deadbolts. It is best for renters and app users who value convenience over built-in keypads.

Key specs explained for August Home

Access Methods: App, Apple Watch, physical key

You can unlock the door using your phone, an Apple Watch, or a traditional physical key. This variety ensures you have options if your battery dies or your phone is unavailable. It is useful for guests who may not have your smart devices. When comparing smart locks, check if your preferred wearable is supported to ensure seamless entry without carrying extra items.

Installation Type: Replaces interior thumbturn

This lock attaches to the inside of your door by replacing the existing thumbturn, leaving the exterior deadbolt unchanged. This design preserves your current hardware while adding smart features. It is ideal for renters who cannot modify the outside of their door. Compare this to full replacement locks if you need a complete aesthetic change or different security ratings.

Color: Silver

The device features a silver finish that blends with most standard door hardware. This neutral tone helps it match existing deadbolts and trim without drawing attention. If your home decor uses cool metallic tones, this color likely complements your entryway. Check other listings for black or brass options if your door hardware differs significantly from silver standards.

Width: 2.6 inches

The unit is 2.6 inches wide, a compact size that fits standard interior door spaces. This dimension ensures it does not interfere with adjacent door frames or trim pieces. Verify your door’s interior clearance before purchasing to guarantee a proper fit. Larger units may require additional drilling or modification, so this width offers a straightforward installation for most single-cylinder deadbolts.

Design and build details

According to the listing, the August Home 3rd Gen Smart Lock arrives in a silver finish. The unit measures 2.6 inches wide, 4.8 inches high, and 1.63 inches deep. It weighs 13.9 ounces. These dimensions ensure the device fits most standard single-cylinder deadbolts without altering the exterior of your door. You keep your existing hardware on the outside. The smart mechanism replaces only the interior thumbturn. This layout preserves your traditional key access while adding digital control. The compact size means it does not protrude significantly into your interior space. The silver color matches many common deadbolt finishes. You can install it in about 10 minutes if you are not handy. The design is renter-friendly because you can reinstall the original thumbturn when you move. You control the lock via the August app on your phone or an Apple Watch. A physical key remains available for emergencies. Auto-unlock features hands-free entry when you arrive. Auto-lock secures the door after a set time or when closed. The build focuses on convenience and security without changing your door’s appearance. This makes it suitable for apartments or homes where exterior modifications are not desired.

Setup and everyday use guide

Setting up this smart lock involves replacing the interior thumbturn of your existing deadbolt. The listing states that installation takes about ten minutes and fits most single-cylinder deadbolts. This design keeps the outside of your door unchanged, allowing you to retain your physical keys for backup. You do not need to replace the entire lock mechanism, which also makes it renter-friendly. You can remove the unit and reinstall the original thumbturn when you move. Once installed, you control the lock through the August app on your phone or an Apple Watch. This setup allows for hands-free entry. The Auto-Unlock feature engages as you approach, which is useful when your hands are full with groceries or children. For security, the system includes Auto-Lock and DoorSense. These features automatically secure the door after it closes or after a set period. You can adjust these settings to fit your routine. The device operates without requiring you to carry keys for daily access. However, the physical key remains available if your phone battery dies or the app fails. The silver finish and compact dimensions ensure it blends with standard home hardware. You interact with the device primarily through software commands, relying on the app for locking and unlocking. The physical interface is limited to the retained key, as the interior side is now electronic. This configuration simplifies entry while maintaining a traditional look on the exterior.

Before you buy this smart lock

Before you buy this smart lock, you should verify your door type. The August Home 3rd Gen replaces the interior thumbturn only. It fits most single-cylinder deadbolts. If your door has a double-cylinder deadbolt, this device will not work. You need a standard deadbolt with a key on the outside and a thumbturn on the inside. Check that your door is not too thick or too thin. The listing notes it fits most standard doors, but you must confirm your specific model. You will need your phone or an Apple Watch to use the app features. The physical key remains for emergencies. Keep the original thumbturn if you rent, as you can reinstall it when you move. This lock works well with video doorbells for a complete entry system. You get remote access and auto-locking via the app. Ensure your Wi-Fi is stable for the best experience. The silver finish matches most hardware. This is a practical upgrade for renters and homeowners alike.

Check before you buy

  • Confirm your deadbolt is single-cylinder with an interior thumbturn.
  • Check if your door thickness is within standard limits.
  • Ensure you have a smartphone or Apple Watch for app control.
  • Keep the original thumbturn if you plan to move soon.

The product at a glance

August Home 3rd Gen Smart Lock Silver

Best for: renters with single-cylinder deadbolts

Access Methods
App, Apple Watch, physical key
Installation Type
Replaces interior thumbturn
Color
Silver
Application
Home
Dimensions
1.63 × 2.6 × 4.8 inches
Weight
13.9 ounces

View on Amazon: August Home 3rd Gen Smart Lock Silver Affiliate link

The August Home 3rd Gen replaces your interior deadbolt thumbturn with a smart module. You control it via app or Apple Watch, with auto-unlock and auto-lock features. It fits most single-cylinder deadbolts and installs in about 10 minutes. The silver unit measures 2.6 by 4.8 inches and weighs 13.9 ounces. It keeps your exterior keyhole intact for physical key access.

Pros

  • Replaces interior thumbturn only
  • App and Apple Watch control
  • Auto-unlock and auto-lock capabilities
  • Fits most single-cylinder deadbolts
  • Physical key backup included

Cons

  • Requires compatible single-cylinder deadbolt
  • No mention of battery life duration
  • No mention of hub requirements

Good fit if

  • You rent and want to keep the lock
  • You want hands-free entry with groceries
  • You prefer app control over keypads

Skip if

  • You have a double-cylinder deadbolt
  • You need a keypad for code entry
  • You want a completely exterior replacement

Verdict: August Home 3rd Gen Smart Lock suits renters who want app control without changing the exterior. It works well for hands-free entry if you have a standard single-cylinder deadbolt.

Specifications side by side

Spec August Home 3rd Gen Smart Lock Silver
Access Methods App, Apple Watch, physical key
Installation Type Replaces interior thumbturn
Color Silver
Application Home
Dimensions 1.63 × 2.6 × 4.8 inches
Weight 13.9 ounces
Model AUG-SL04-M01-S04

Frequently asked questions

Does the August Home 3rd Gen Smart Lock require drilling new holes?

No, it does not require drilling new holes. The device replaces the interior thumbturn of your existing deadbolt. This design keeps the exterior of your door unchanged. You only need to swap the interior component. This makes it ideal for renters who cannot modify the outside of their door. Installation typically takes about ten minutes.

What are the exact dimensions of the August Home 3rd Gen Smart Lock?

The unit measures 2.6 inches wide, 4.8 inches high, and 1.63 inches deep. It weighs 13.9 ounces. These compact dimensions allow it to fit most standard single-cylinder deadbolts. The silver finish matches common hardware styles. You should verify your current deadbolt size before purchasing to ensure a proper fit.

Can I control the August Home 3rd Gen Smart Lock remotely?

Yes, you can control it via the August app. The listing confirms app access as a primary feature. You can lock or unlock your door from anywhere with an internet connection. This allows for hands-free entry when you have your groceries. You can also grant access to guests remotely.

Is this smart lock compatible with double-cylinder deadbolts?

No, this device is not compatible with double-cylinder deadbolts. It is designed specifically for single-cylinder deadbolts. A double-cylinder deadbolt requires a key on both sides. The August Home 3rd Gen replaces the interior thumbturn only. If your door requires a key on the inside, you will need a different smart lock.

What is the model number for the August Home 3rd Gen Smart Lock?

The model number is AUG-SL04-M01-S04. This identifier helps you find the correct replacement parts or support documentation. The device is available in a silver color. It is intended for residential home use. You can use this model number to verify compatibility with your existing hardware.

Does the August Home 3rd Gen Smart Lock work with Apple Watch?

Yes, it works with Apple Watch. The listing specifies Apple Watch access as a key feature. You can unlock your door by simply raising your wrist. This provides a convenient hands-free option. You do not need to take out your phone. This feature is useful when your hands are full.

Who is the best target user for this smart lock?

This lock is best for renters with single-cylinder deadbolts. It suits users who want app control without changing the exterior. The device keeps your existing deadbolt secure. You retain the ability to use a physical key. This makes it a practical choice for those who cannot modify their door structure.

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