Best August Smart Door Sensor of 2026
An August smart door sensor adds keyless convenience and real-time alerts to your home. We have reviewed the top models to help you find the best fit for your security needs.
Quick answer
The August Wi-Fi Smart Lock (4th Gen) is our top pick for its built-in Wi-Fi and seamless integration. For a budget-friendly option, the August Smart Lock (3rd Gen) offers reliable performance without the need for a separate Connect bridge if you have Z-Wave.
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Research updated June 2026.
August Wi-Fi Smart Lock (4th Gen)
Built-in Wi-Fi for direct app control and auto-lock/unlock.
| Product | Best for | Key Spec | Rating | Price |
|---|---|---|---|---|
| August Wi-Fi (4th Gen) | Overall / Wi-Fi | Built-in Wi-Fi | 4.5/5 | $$$ |
| August Smart Lock (3rd Gen) | Budget / Z-Wave | Z-Wave Plus, Bluetooth | 4.3/5 | $$ |
| August Smart Lock Pro (3rd Gen) | HomeKit / Z-Wave | Z-Wave Plus, HomeKit | 4.4/5 | $$$ |
| August View | Built-in Doorbell | Camera + doorbell | 4.2/5 | $$$$ |
| Yale Assure Lock 2 (August) | Integrated Keypad | Keypad + August Module | 4.4/5 | $$$ |
August Wi-Fi Smart Lock (4th Gen)
Best OverallPros
- No extra hub needed
- Auto-unlock works well
- Easy DIY install
Cons
- Higher price point
- No keypad included
The August Wi-Fi Smart Lock (4th Gen) is the most convenient model because it connects directly to your home Wi-Fi. You do not need the August Connect bridge to control it remotely. Owner reviews highlight the reliable auto-unlock feature that senses your phone's approach.
Battery life is rated for 6 to 12 months with typical use. It fits over most standard US deadbolts, making installation a 10-minute task. The lock is compatible with Apple HomeKit, Amazon Alexa, and Google Assistant for voice control.
August Smart Lock (3rd Gen)
Best Budget / Z-WavePros
- Lower cost than 4th Gen
- Works with Z-Wave hubs
- Reliable Bluetooth range
Cons
- Needs August Connect for remote access
- No built-in Wi-Fi
The August Smart Lock (3rd Gen) is a solid choice if you already have a Z-Wave smart home hub. It uses Z-Wave Plus for fast, secure communication. Many owners pair it with a Ring Alarm or Samsung SmartThings hub for remote control.
Without a hub, you can still control it via Bluetooth from your phone. The lock fits over your existing deadbolt and uses the same keys. Battery life is similar to the 4th Gen, lasting up to a year.
August Smart Lock Pro (3rd Gen)
Best for HomeKitPros
- Native Apple HomeKit support
- Works with Z-Wave hubs
- Auto-unlock feature
Cons
- Still needs Connect for Wi-Fi
- Premium price
The August Smart Lock Pro (3rd Gen) adds native Apple HomeKit support to the standard 3rd Gen features. This allows you to use Siri voice commands and include the lock in HomeKit automations. It also works with Z-Wave hubs for broader compatibility.
Reviews note that the Pro model has a slightly faster motor than the standard 3rd Gen. It still requires the August Connect bridge for remote access if you do not use a Z-Wave hub. Installation is the same simple process as other August locks.
August View
Best with Doorbell CameraPros
- Built-in doorbell and camera
- Two-way audio
- No extra hub needed
Cons
- Bulky design
- Camera battery needs recharging
The August View combines a smart lock with a 1080p doorbell camera and two-way audio. It connects directly to Wi-Fi, so you do not need a separate hub. You can see, hear, and speak to visitors from the August app.
Owner reviews appreciate the convenience of an all-in-one device. The lock portion works like other August models, but the camera adds a rechargeable battery that needs charging every few months. It fits over your existing deadbolt.
Yale Assure Lock 2 (with August Module)
Best with KeypadPros
- Built-in backlit keypad
- Uses August app and features
- Fits standard deadbolt
Cons
- Requires August module for Wi-Fi
- More expensive than standard August
The Yale Assure Lock 2 with the August Smart Module gives you a physical keypad for code entry plus all the August app features. You can unlock with a code, your phone, or voice commands. The keypad is backlit and easy to use at night.
This lock is a collaboration between Yale and August. It uses the August app for remote control and automations. The module is included, so you get Wi-Fi connectivity out of the box. Owner reviews praise the build quality and the convenience of a keypad.
What to check before buying an August smart door sensor
Before you buy, check your door's deadbolt type. August locks fit most standard single-cylinder deadbolts, but not all. Measure the thickness of your door and the backset distance. Most August models work with doors 1.375 to 1.75 inches thick and backsets of 2.375 or 2.75 inches.
Consider your smart home ecosystem. If you use Apple HomeKit, choose the Pro model or the 4th Gen. For Z-Wave hubs like Ring or SmartThings, the 3rd Gen is a good fit. The 4th Gen works with all major platforms without extra hardware.
Mistakes to avoid
Do not assume all August locks include Wi-Fi. The 3rd Gen models need a separate August Connect bridge for remote access. If you want direct Wi-Fi, buy the 4th Gen or the August View.
Avoid ignoring battery life. Smart locks use batteries faster than standard locks. Keep spare AA batteries on hand. The app will warn you when levels are low, but it is best to replace them proactively every 6 to 12 months.
FAQs
Do August smart locks work with my existing deadbolt?
Yes, August locks are designed to fit over your existing single-cylinder deadbolt. You keep your existing key and lock hardware on the outside.
Do I need the August Connect bridge?
Only if you buy a 3rd Gen lock and want remote access via Wi-Fi. The 4th Gen and August View have built-in Wi-Fi and do not need the bridge.
Can I use an August lock without a smartphone?
Yes, you can still use your physical key. For keyless entry without a phone, consider the Yale Assure Lock 2 with a keypad.
How long do the batteries last?
Most August locks last 6 to 12 months on a set of 4 AA batteries. Battery life depends on usage and temperature.
Are August locks secure?
Yes, they use encryption and meet industry security standards. They do not replace the physical lock cylinder, so your existing key still works.
Do August locks work with Ring Alarm?
Yes, the 3rd Gen and Pro models work with Ring Alarm via Z-Wave. The 4th Gen works with Ring through the August skill for Alexa.
Can I share access with family or guests?
Yes, the August app lets you grant permanent or temporary access to others. You can set schedules and revoke access at any time.
What is the warranty on August locks?
August offers a one-year limited warranty on all smart locks. Some retailers may offer extended warranty options.
Do August locks work with smart home routines?
Yes, they work with Apple HomeKit, Alexa, and Google Assistant for automations. You can create routines like locking the door when you leave.
Can I install an August lock myself?
Yes, installation is DIY-friendly and takes about 10 to 15 minutes. You only need a screwdriver. No wiring is required.
What if my door is not standard?
August locks fit most standard US doors. If you have a mortise lock or a multi-point lock, it will not work. Check compatibility on the August website.
Does the August View camera record continuously?
No, it records clips when motion is detected or the doorbell is pressed. You need a subscription for cloud storage of recorded clips.
Our verdict
The August Wi-Fi Smart Lock (4th Gen) is our top pick for its built-in Wi-Fi and broad smart home compatibility. For a budget-friendly option, the August Smart Lock (3rd Gen) offers reliable Z-Wave performance at a lower price. Both provide excellent keyless convenience.