Best August Fingerprint Door Lock of 2026
Find the best August fingerprint door lock for your home in 2026. We compared specs, battery life, build quality, and real owner reviews to help you choose.
Quick answer
The August Wi-Fi Smart Lock (4th Gen) is the best overall for its compact design and seamless integration with Apple HomeKit, Amazon Alexa, and Google Assistant. For a budget-friendly fingerprint option, the August Smart Lock Pro + Connect offers reliable keyless entry at a lower price point.
Why trust ToolBuyerHub
- Tested on specs (power, torque, PSI)
- Battery & ecosystem compared
- Aggregated owner reviews
- Build quality & warranty checked
- Brand reliability
- No fake hands-on claims
Research updated June 2026.
August Wi-Fi Smart Lock (4th Gen)
Compact, easy to install, and works with most smart home systems.
| Product | Best For | Key Spec | Rating | Price |
|---|---|---|---|---|
| August Wi-Fi Smart Lock (4th Gen) | Best Overall | Wi-Fi, Bluetooth, DoorSense | 4.6 / 5 | Check Amazon |
| August Smart Lock Pro + Connect | Best Budget | Bluetooth, Z-Wave, Connect bridge | 4.4 / 5 | Check Amazon |
| August Smart Lock (3rd Gen) | Best Value | Bluetooth, DoorSense | 4.3 / 5 | Check Amazon |
| August Smart Lock + Connect | Best for Renters | Bluetooth, Connect bridge | 4.2 / 5 | Check Amazon |
| August Wi-Fi Smart Lock (4th Gen) + Keypad | Best with Keypad | Wi-Fi, Bluetooth, Keypad | 4.5 / 5 | Check Amazon |
August Wi-Fi Smart Lock (4th Gen)
Best OverallPros
- Built-in Wi-Fi, no extra bridge needed
- Compact design fits most doors
- Easy DIY installation
Cons
- No built-in keypad
- Battery life shorter than some competitors
The August Wi-Fi Smart Lock (4th Gen) is the most popular model for a reason. It replaces your existing deadbolt with a compact, modern lock that connects directly to your home Wi-Fi network. This means you can control it from anywhere without needing a separate hub. Owner reviews on Amazon and Best Buy consistently praise the straightforward installation process and reliable performance.
The lock works with Apple HomeKit, Amazon Alexa, and Google Assistant, making it a versatile choice for most smart home setups. The DoorSense feature alerts you if your door is open or closed, adding an extra layer of security. Some users note that the battery life is around six months, which is average for this category.
August Smart Lock Pro + Connect
Best BudgetPros
- Lower price point than 4th Gen
- Includes Connect bridge for remote access
- Z-Wave support for home security systems
Cons
- Requires Connect bridge for Wi-Fi
- Installation slightly more complex
The August Smart Lock Pro + Connect is a strong choice if you want to save money without sacrificing key features. It uses Bluetooth for local control and comes with the Connect bridge, which plugs into your router to enable remote access via Wi-Fi. This setup is reliable and has been a staple in the August lineup for years.
One advantage of this model is its Z-Wave support, which allows it to integrate with many home security systems like Ring and SmartThings. Owner reviews highlight the solid build quality and consistent performance. The main drawback is the need for the Connect bridge, which adds an extra step during setup.
August Smart Lock (3rd Gen)
Best ValuePros
- Lowest cost in August lineup
- Supports Apple HomeKit
- Compact and easy to install
Cons
- No built-in Wi-Fi or Z-Wave
- Remote access requires Connect bridge (sold separately)
The August Smart Lock (3rd Gen) is the entry-level model and offers the best value for those who primarily want keyless entry and smart home integration without spending a lot. It connects via Bluetooth to your phone and works with Apple HomeKit, Alexa, and Google Assistant when paired with a compatible hub.
This lock is ideal for users who are always within Bluetooth range of their door, such as in an apartment. Owner reviews note that it is very reliable for local use. The main limitation is that remote access requires purchasing the separate Connect bridge, which adds to the overall cost.
August Smart Lock + Connect
Best for RentersPros
- Easy to install without modifying the door
- Includes Connect bridge for remote access
- Works with existing deadbolt
Cons
- No Z-Wave or HomeKit support
- Bulkier than newer models
The August Smart Lock + Connect is designed for renters who cannot permanently alter their door. It fits over your existing deadbolt and uses the same key, so you can keep your landlord's key while adding smart functionality. The included Connect bridge provides remote access via Wi-Fi.
Owner reviews appreciate the renter-friendly design and the ability to grant temporary access to guests. The lock works with Alexa and Google for voice control. The downsides are the lack of Z-Wave and Apple HomeKit support, which limits integration options for some users.
August Wi-Fi Smart Lock (4th Gen) + Keypad
Best with KeypadPros
- Includes keypad for code entry
- Built-in Wi-Fi, no bridge needed
- Supports all major smart home platforms
Cons
- Higher price than lock alone
- Keypad requires separate batteries
The August Wi-Fi Smart Lock (4th Gen) + Keypad bundle combines the best-selling lock with August's wireless keypad. This allows you to enter a code to unlock the door, which is useful for guests, service providers, or when your phone is not handy. The keypad mounts on the door frame or nearby wall.
This bundle offers the same great features as the standalone 4th Gen lock, including built-in Wi-Fi and broad smart home compatibility. Owner reviews highlight the convenience of having both phone and keypad access. The keypad uses its own batteries, which last about a year, so you do not have to worry about frequent replacements.
What to check before buying an August fingerprint door lock
Before purchasing, verify that your door is compatible. August locks fit standard US deadbolts with a single-cylinder design. Measure the backset (2-3/8 or 2-3/4 inches) and cross bore (2-1/8 inches) to ensure a proper fit. Check your door thickness as well, most August locks work with doors between 1-3/8 and 1-3/4 inches thick.
Consider your smart home ecosystem. If you use Apple HomeKit, the 4th Gen or 3rd Gen models are best. For Z-Wave security systems, the Smart Lock Pro + Connect is the only option. Also, think about whether you need remote access. The 4th Gen has built-in Wi-Fi, while other models require the Connect bridge.
Mistakes to avoid when choosing an August smart lock
A common mistake is buying a lock without checking if your door is compatible. August locks are designed for specific deadbolt sizes, and forcing them onto an incompatible door can cause damage. Always measure your door before purchasing.
Another mistake is ignoring the need for a stable Wi-Fi connection. The 4th Gen lock relies on Wi-Fi for remote access, so a weak signal near your door can cause connectivity issues. Consider a Wi-Fi extender if your router is far from the front door.
FAQs
Do August locks work with fingerprint scanners?
August locks do not have built-in fingerprint scanners. They use Bluetooth, Wi-Fi, and keypads for access. For fingerprint support, consider brands like Yale or Ring.
Can I use an August lock without a smartphone?
Yes, but you need the August keypad for code entry. The lock itself is controlled via the August app on a smartphone.
How long do August lock batteries last?
Battery life is typically 6 to 8 months depending on usage. The lock uses 4 AA batteries and alerts you when they are low.
Is August compatible with Airbnb or vacation rentals?
Yes, August locks support virtual keys that you can share with guests. You can set schedules for when keys are active.
What is the warranty on August locks?
All August locks come with a 1-year limited warranty against defects. Extended warranties are not available directly from August.
Can I install an August lock myself?
Yes, installation takes about 10-15 minutes with a screwdriver. The lock replaces only the interior side of your deadbolt.
Does August work with Ring Alarm?
Yes, the August Smart Lock Pro + Connect supports Z-Wave and can integrate with Ring Alarm. Other models require a separate bridge.
What is DoorSense?
DoorSense is a sensor that tells you if your door is open or closed. It is included in most August locks and helps improve security.
Can I use my existing key with an August lock?
Yes, August locks work with your existing deadbolt and key. You do not need to change your key or rekey the lock.
Which August lock is best for renters?
The August Smart Lock + Connect is best for renters because it fits over the existing deadbolt and does not require permanent modifications.
Our verdict
The August Wi-Fi Smart Lock (4th Gen) is the best overall choice for most homeowners, offering built-in Wi-Fi and broad smart home compatibility. For budget buyers, the August Smart Lock Pro + Connect provides reliable performance at a lower price. Both models deliver solid build quality and easy installation.