August Home 3rd Gen Smart Lock vs August Home 1st Gen Smart Lock: Spec Comparison
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The august home 3rd gen smart lock vs 1st gen smart lock comparison highlights key upgrades in convenience and control. Both models replace your interior deadbolt thumbturn, keeping the exterior unchanged and allowing you to keep physical keys. They share a silver finish and home application focus. The main difference lies in access methods and automation. The 3rd generation adds Apple Watch support and auto-unlocking features, while the 1st generation relies solely on smartphone apps. We compare these specs to help you decide.
Key differences
| Aspect | August Home 3rd Gen Smart Lock Silver | August Home 1st Gen Smart Lock |
|---|---|---|
| Access Methods | App, Apple Watch, physical key | Smartphone app |
| Automation Features | Auto-unlock, auto-lock, DoorSense | Manual lock/unlock only |
| Weight | 13.9 ounces | 1 pounds |
| Model Number | AUG-SL04-M01-S04 | ASL-1 |
Which one should you choose?
Choose August Home 3rd Gen Smart Lock Silver if
- You want hands-free entry using Apple Watch or auto-unlock when you arrive.
- You prefer a lighter device that weighs under one pound.
Choose August Home 1st Gen Smart Lock if
- You only need basic smartphone app control for keyless entry.
- You are looking for the original model design with standard app management.
Verdict: Choose the 3rd generation if you value automation like auto-unlocking and Apple Watch integration. The 1st generation is suitable if you prefer simple, manual app-based control. Both models offer the same retrofit installation and exterior appearance.
August Lock Generations Compared
access method
The August Home 3rd Gen Smart Lock supports multiple access methods, including the smartphone app, Apple Watch, and physical keys. This allows you to unlock the door using your watch while carrying groceries or other items. The August Home 1st Gen Smart Lock relies on smartphone app access via iOS or Android devices. It does not list support for wearable devices like watches. If you prefer hands-free entry or want to use your Apple Watch, the 3rd Gen is the better choice. The 1st Gen requires you to use your phone for every entry and exit.
auto features
The August Home 3rd Gen Smart Lock includes Auto-Lock and Auto-Unlock features. Auto-Unlock engages when you approach the door, providing hands-free entry. Auto-Lock secures the door automatically when it closes or after a set time, especially when used with the DoorSense accessory. The August Home 1st Gen Smart Lock does not mention these automatic locking or unlocking capabilities in its specifications. You must manually lock and unlock the door using the app on the 1st Gen. For convenience and security automation, the 3rd Gen offers significant advantages over the manual operation of the older model.
dimensions
The August Home 3rd Gen Smart Lock measures 2.6 inches in width, 4.8 inches in height, and 1.63 inches in length. The August Home 1st Gen Smart Lock measures 3.26 inches in width, 2.21 inches in height, and 3.26 inches in length. The 3rd Gen is taller but narrower and thinner. The 1st Gen is wider and deeper but shorter. Both fit standard single cylinder deadbolts. The difference in shape may affect how the lock fits within your specific door frame or interior space. You should measure your door area to ensure the preferred shape fits comfortably without obstruction.
weight
The August Home 3rd Gen Smart Lock weighs 13.9 ounces. The August Home 1st Gen Smart Lock weighs 1 pound, which equals 16 ounces. The 3rd Gen is lighter by 2.1 ounces. This difference is minor but may matter if you are mounting the lock on a door with specific weight limitations or if you prefer a less bulky interior component. Both locks are powered by batteries, so the weight includes the battery compartment. The lighter build of the 3rd Gen might make installation feel slightly easier, though both are designed for DIY retrofit installation.
power source
The August Home 1st Gen Smart Lock is powered by batteries, ensuring it remains active even during power or Wi-Fi outages. The August Home 3rd Gen Smart Lock also relies on battery power, as it replaces the interior thumbturn and does not require external wiring. Both models maintain functionality without external electricity. This battery-powered design means you must monitor battery levels regularly for both locks. Neither product lists a wired power option or backup power supply. You will need to replace batteries periodically for whichever model you choose to keep the smart features operational.
Choose the right August smart lock
Users wanting hands-free entry with Apple Watch
The 3rd Gen model supports Apple Watch access, allowing you to unlock the door without using your phone. It also features Auto-Unlock, which detects your arrival to open the door automatically. This convenience is ideal for carrying groceries or children, as you do not need to retrieve keys or a device to enter your home.
Renters seeking easy installation and portability
This model installs by replacing the interior thumbturn in about 10 minutes, leaving the exterior deadbolt unchanged. It is designed for renters because you can remove the smart lock and reinstall the original thumbturn when moving. The compact size fits most single cylinder deadbolts, making it a flexible upgrade for apartment living.
Users needing basic keyless access only
The 1st Gen lock provides secure, keyless entry via the smartphone app for both iOS and Android. It powers by batteries, ensuring it remains operational even if Wi-Fi or power fails. This model offers essential control over access permissions and activity logs, suitable for those who prefer a straightforward, app-only unlocking experience without extra features.
The products compared
August Home 3rd Gen Smart Lock Silver
Best for: renters upgrading existing 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
This smart lock upgrades your existing deadbolt by replacing the interior thumbturn. You control access via the August app or Apple Watch, with physical key backup. Auto-unlock detects your arrival, while DoorSense verifies the door is closed. It installs in about 10 minutes and fits most single-cylinder deadbolts. The silver unit measures 2.6 by 4.8 inches and weighs 13.9 ounces.
Pros
- Replaces interior thumbturn for a clean exterior look
- App and Apple Watch access for hands-free entry
- Auto-unlock triggers as you approach the door
- DoorSense confirms the door is securely closed
- Quick 10-minute installation on single-cylinder deadbolts
Cons
- Requires a smartphone or Apple Watch for smart features
- Does not include a built-in keypad for code entry
- Heavier at 13.9 ounces than the 1st Gen model
Good fit if
- You want to keep your original exterior deadbolt
- You prefer unlocking via your phone or watch
- You rent and need a removable lock solution
Skip if
- You need a keypad for code-only entry
- You have a double-cylinder deadbolt
- You want a lighter lock under 10 ounces
Verdict: August Home 3rd Gen Smart Lock fits renters who want keyless entry without changing their exterior hardware. It suits you if you rely on your phone for access and value the auto-unlock convenience.
August Home 1st Gen Smart Lock
Best for: existing hardware upgrades
- Access Methods
- Smartphone app
- Installation Type
- Interior retrofit
- Color
- Silver
- Application
- Home
- Dimensions
- 3.26 × 3.26 × 2.21 inches
- Weight
- 1 pounds
View on Amazon: August Home 1st Gen Smart Lock Affiliate link
This is the August Home 1st Generation Smart Lock in silver. It uses a smartphone app for access and installs as an interior retrofit to your existing deadbolt. The unit measures 2.21 by 3.26 by 3.26 inches and weighs one pound. It runs on batteries, so it stays active during power outages. This model is discontinued by the manufacturer.
Pros
- Interior retrofit installation leaves the exterior unchanged
- Battery powered for continuous operation during outages
- Compatible with iOS and Android smartphones
Cons
- Discontinued by manufacturer
- Requires smartphone app for access
- Older generation model
Good fit if
- You want to keep your current exterior deadbolt
- You prefer battery operation for reliability
- You use an iOS or Android smartphone
Skip if
- You need the latest generation features
- You require a new purchase with current support
- You prefer keyless entry without a smartphone
Verdict: August Home 1st Gen Smart Lock offers basic retrofit convenience but lacks current support due to being discontinued. It suits users who already own the hardware or seek a budget interior retrofit solution.
Specifications side by side
| Spec | August Home 3rd Gen Smart Lock Silver | August Home 1st Gen Smart Lock |
|---|---|---|
| Access Methods | App, Apple Watch, physical key | Smartphone app |
| Installation Type | Replaces interior thumbturn | Interior retrofit |
| Color | Silver | Silver |
| Application | Home | Home |
| Dimensions | 1.63 × 2.6 × 4.8 inches | 3.26 × 3.26 × 2.21 inches |
| Weight | 13.9 ounces | 1 pounds |
| Model | AUG-SL04-M01-S04 | ASL-1 |
| Size | not stated | 2.21 x 3.26 x 3.26 inches |
Frequently asked questions
What are the physical dimensions of the August Home 3rd Gen Smart Lock?
The August Home 3rd Gen Smart Lock measures 2.6 inches in width, 4.8 inches in height, and 1.63 inches in length. It weighs 13.9 ounces. These compact dimensions allow it to fit behind most standard interior deadbolts without interfering with the door frame or exterior hardware.
How does the size of the 1st Gen model compare to the 3rd Gen?
The August Home 1st Gen Smart Lock has a width of 3.26 inches, a height of 2.21 inches, and a length of 3.26 inches. It weighs 1 pound. The 3rd Gen model is generally taller but narrower, offering a different profile for your interior door setup.
Does the August Home 3rd Gen Smart Lock come in other colors?
The August Home 3rd Gen Smart Lock is available in a Silver finish. This color matches the exterior hardware of most standard residential deadbolts, ensuring a cohesive look on your door without drawing attention to the electronic components inside.
Is the August Home 1st Gen Smart Lock still in production?
The August Home 1st Gen Smart Lock is a discontinued model. It is no longer actively manufactured or supported by the brand. You may only find it through secondary markets or as part of a used bundle, which limits your ability to get new replacement parts.
What is the model number for the August Home 3rd Gen Smart Lock?
The model number for the August Home 3rd Gen Smart Lock is AUG-SL04-M01-S04. You can use this identifier to verify compatibility with your specific door type or to locate the correct installation manual and firmware updates for your device.
Can I use the August Home 1st Gen Smart Lock for home applications?
Yes, the August Home 1st Gen Smart Lock is designed for home applications. It is intended to retrofit existing interior deadbolts, allowing you to lock and unlock your door remotely. It is not suitable for commercial or high-traffic institutional settings.
How heavy is the August Home 3rd Gen Smart Lock?
The August Home 3rd Gen Smart Lock weighs 13.9 ounces. This lightweight design ensures it does not strain your existing deadbolt mechanism. It is easy to install and remove if you need to switch back to a standard key lock in the future.
What is the model number for the August Home 1st Gen Smart Lock?
The model number for the August Home 1st Gen Smart Lock is ASL-1. This identifier helps you confirm you are looking at the correct legacy device. It distinguishes this older generation from the newer 3rd Gen model, which has a different model designation.

