August Wi-Fi Smart Lock Review (2026): Is It Worth the Money?
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Our August Wi-Fi Smart Lock review covers performance, design, cleaning, pros and cons, and who should buy it. Plus top alternatives. Updated 2026.
Most smart locks ask you to replace your whole deadbolt, hand out new keys, and change how your front door looks from the street. This one takes the opposite approach. In this august wi-fi smart lock review, we look at a retrofit lock that mounts over the deadbolt you already own, keeps your existing keys working, and adds app control, voice control, and remote access through built in WiFi. The comparison table below sums up how it stacks up, and our guide to the best smart lock models covers the wider field.
Because this style of lock leaves your current hardware in place, the buying decision is less about raw locking power and more about fit, connection quality, and daily convenience. The sections below cover the specs, design, performance, running costs, and tradeoffs.
Quick Take: What This Lock Does Well and Where It Falls Short
The August lock is built for people who want smart access without touching the outside of their door. It replaces only the interior thumb turn, so your key still works, your landlord sees no change, and the install takes minutes. Built in WiFi means remote locking and guest access work without a separate hub or bridge. Battery life is shorter than on hub based locks, there is no keypad in the box, and the round body adds bulk inside your door. It suits renters and first time smart lock buyers best.
Specs at a Glance
- Type: retrofit lock that fits over an existing single cylinder deadbolt
- Connectivity: built in WiFi plus Bluetooth, no separate bridge required
- Voice platforms: Amazon Alexa, Google Assistant, and Apple HomeKit
- Door sensor: DoorSense reports whether the door is open or closed
- Power: battery powered, with low battery warnings in the app
- App: August app for iOS and Android, with guest access and an activity feed
Design and Build Quality
The design story here is restraint. From the street, nothing changes at all, because the lock lives entirely on the inside face of the door and your current cylinder, trim, and keys stay exactly as they were. That matters if you rent, live in a condo with rules about exterior hardware, or simply like the lock you already have. August also made this generation smaller than its earlier round locks, so it sits flatter against the door.
Up close, the body is a round metal dial with a knurled edge that you turn by hand to lock or unlock without your phone. The grip feels secure, and the manual turn matters, because guests and kids still need a simple way in and out. Build quality is solid for this price class, though the unit only feels as sturdy as the deadbolt underneath it. A worn existing lock will make any retrofit feel sloppy, so tighten your current hardware first.
Performance
Judging a retrofit lock means judging how reliably it turns a bolt it did not ship with, and how honestly it reports the state of your door.
Reliability and Accuracy
The motor only has one job, turning your deadbolt, and it does that job well when the bolt itself moves freely. Problems almost always trace back to the door rather than the lock. A bolt that scrapes the strike plate forces the motor to work harder, drains batteries faster, and can leave the lock reporting a jam. DoorSense adds accuracy by confirming the door is fully closed, which prevents the common failure of a bolt thrown into an open doorway. Calibrate the lock in the app after install so its positions match your hardware.
Compatibility With Voice and Smart Home Platforms
The lock works with Amazon Alexa, Google Assistant, and Apple HomeKit, so you can lock the door or check its status by voice and include it in simple routines. Voice unlocking is guarded by a spoken PIN on Alexa and similar safeguards elsewhere. Support for newer standards such as Matter has arrived unevenly across older smart locks, so if Matter is a must for your setup, confirm the current listing before you buy rather than assuming support.
Installation
Installation is the strongest argument for this lock. You remove the interior thumb turn from your existing deadbolt, mount a plate with the screws already in your door, and clip the August unit on. A screwdriver is usually the only tool involved. The app then walks you through calibration and placing the small DoorSense magnet near the frame. Check that your deadbolt is a standard single cylinder model first, since mortise locks and integrated handle sets are not supported.
Subscription Costs
August keeps the core features free, a genuine advantage in a category where some brands lock basic functions behind a monthly plan. Locking and unlocking from anywhere, sending guest access, viewing the activity feed, and using auto lock do not require a subscription. Paid plans from August apply mainly to its video doorbells, not to this lock. Your real running costs are batteries and, if you want one, the separate August keypad for code based entry.
Key Features to Compare
Built In WiFi With No Bridge
Earlier August locks needed a separate bridge plugged into an outlet to reach the internet. This model puts WiFi inside the lock itself, so remote control, guest invites, and status checks work straight out of the box. The cost of that convenience is battery drain, since WiFi uses far more power than Bluetooth. A weak router signal at the front door makes the drain worse, so check your WiFi strength where the lock will live before trusting the battery estimates.
Auto Lock and Auto Unlock
Auto lock secures the door after a delay you choose, or the moment DoorSense reports the door has closed, which removes the nightly walk around the house checking handles. Auto unlock uses your phone location and Bluetooth as you approach, so the door opens as you reach it with your hands full. Test it during your first week, and set the home location radius thoughtfully, because a radius that is too small can miss arrivals, and one that is too large can trigger when you pass nearby.
Guest Access Through the App
Instead of copying keys, you send access through the app. Each guest gets an invite tied to their phone, and you choose whether that access is always on, limited to certain days and times, or valid for a single visit. The activity feed records who locked and unlocked and when, which is useful for dog walkers, cleaners, and older kids coming home from school. The catch is that guests need the app and a smartphone. Anyone you would rather hand a code needs the optional keypad.
Ease of Use, Cleaning, and Maintenance
Day to day use is simple because there is so little to learn. The app shows one clear locked or unlocked state, the dial turns by hand, and your old key still works, so nobody is forced onto a phone to get inside. Cleaning takes almost no effort. Wipe the body with a soft, slightly damp cloth, and keep sprays and solvents off the finish and battery contacts. Every few months, open the cover to check the batteries for corrosion, vacuum dust from the door edge where the sensor sits, and confirm the deadbolt still turns smoothly by hand.
Pros and Cons
Pros
- Keeps your existing deadbolt, exterior hardware, and keys
- Installs in minutes with a screwdriver
- Built in WiFi gives remote access with no bridge to buy
- DoorSense reports whether the door is open or closed
- No subscription needed for core features
Cons
- Shorter battery life than hub based locks
- No keypad included, so code entry costs extra
- Guests need a smartphone and the app
- Round body adds visible bulk inside the door
- Only fits standard single cylinder deadbolts
Who Should Buy the August Smart Lock, and Who Should Skip It
Buy it if you rent and cannot change exterior hardware, if you like your current deadbolt and keys, or if you want remote access and guest invites without running a hub. It also suits households adding their first smart lock, because the learning curve is small. Skip it if you want a keypad as your main way in, if your door has a mortise lock or an integrated handle set, or if long battery life matters more than a hub free setup.
August Smart Lock vs Alternatives
The main alternative style is the full replacement lock, which swaps your entire deadbolt for a unit with smart features on both sides of the door. If you want a fingerprint reader and a fresh deadbolt in one package, read our yale assure lock 2 review for a design that suits owners happy to rekey. If HomeKit codes and sturdy keypad hardware appeal to you, our schlage encode plus review covers a lock built around code based entry. Choose the August when preserving your current hardware matters most.
Where to Buy and Best Price
The lock sells through Amazon and most major home retailers, and it typically costs about $150 to $250 depending on finish and promotions. Prices drop during big sale events such as Prime Big Deal Days and Black Friday, so waiting for a sale is a reasonable way to save. When you compare listings, confirm you are looking at the model with built in WiFi rather than an older August version that needs a bridge, since the boxes look similar.
FAQs
Is the August Smart Lock worth it?
It is worth it when keeping your current deadbolt and keys is a priority and you value a fast, reversible install. Renters and owners with quality existing hardware get the most from it. If your deadbolt is worn out anyway, the money often goes further toward a replacement lock with a keypad. Compare the total cost, including any keypad you plan to add, rather than the sticker price alone.
What are common August Smart Lock problems?
Most problems come down to three things: batteries draining fast on a weak WiFi signal, the motor jamming on a misaligned bolt, and auto unlock triggering late when a phone uses aggressive battery saving settings. Improve signal strength at the door, realign the strike plate, exempt the app from battery optimization, and recalibrate after any door adjustment. A lock that still jams after alignment work usually points to a deadbolt that needs replacing.
How long does the August Smart Lock last?
The hardware itself should serve for years, since it has few moving parts beyond the motor and gear that turn your bolt. The consumable is the battery set, which typically lasts a few months depending on WiFi strength and daily door cycles. The app warns you well before the cells run flat, and the lock keeps working by hand and by key even if you ignore the warnings.
What is a cheaper alternative to the August Smart Lock?
Cheaper paths fall into two groups. Other retrofit locks cost less but usually drop built in WiFi, so you give up remote access or add a bridge later. Budget replacement locks cost less upfront but change your keys and hardware. If remote locking is what you truly need, a retrofit with WiFi on sale is often the cheapest honest route. If you mainly want keypad entry, a simple code based deadbolt delivers that for less.
How do you clean the August Smart Lock?
Remove one battery first if you plan more than a quick wipe, so the lock stays still while you work. Use a soft cloth lightly dampened with water for the body and dial, then dry it at once so no moisture reaches the battery compartment. Skip abrasive pads and bleach based cleaners. While the cover is off, brush dust from the sensor area on the door edge.
Final Thoughts
The August lock makes a narrow promise and keeps it. It turns the deadbolt you already trust into a connected lock you can run from your phone, with no new keys, no changed street view, and no hub on your shelf. In exchange you accept shorter battery life and app based guest access instead of a keypad. If that trade fits your door, the august wi-fi smart lock review verdict is a clear yes, and the product table above shows how it compares before you buy. Keep your account password strong and turn on two factor sign in.
