August Wi-Fi Smart Lock vs. Level Lock+:
Which Retrofit is Best for You?
Two totally different philosophies. One is a feature-packed powerhouse. The other is completely invisible. Based on independent benchmarks and third-party data, we break down which one deserves your money.
August Home Wi-Fi Smart Lock
Silver · Auto-Unlock · DoorSense · Wi-Fi
$149–$179
Level Lock+ WiFi Deadbolt
Apple HomeKey · NFC · Invisible
$199–$229
Affiliate Disclosure: This site contains affiliate links. As an Amazon Associate, we earn from qualifying purchases. This supports our free testing and reviews at no extra cost to you. We only recommend products we've personally tested and genuinely stand behind. Read our full affiliate disclosure.
The Verdict at a Glance
Pick August if…
August Home Wi-Fi Smart Lock (Silver)
- You want the best Auto-Unlock with geofencing
- You use Alexa, Google Home, or SmartThings
- You want built-in Wi-Fi — no bridge or hub needed
- You're renting and need to remove it in 5 minutes
- You want 24/7 activity logs and DoorSense alerts
Pick Level if…
Level Lock+
- You want a lock that's 100% invisible from the outside
- You're deep in the Apple ecosystem (HomeKit + HomeKey)
- You want tap-to-unlock with iPhone/Apple Watch NFC
- Your landlord would notice a changed-looking lock
- Future-proofing with Thread/Matter matters to you
Key Feature Showdown
Six critical categories. One clear winner per round. Here's how they actually compare.
Attaches to your existing thumb turn interior only — 10 minutes, no tools beyond a screwdriver. Leaves the exterior deadbolt completely untouched. Remove in 5 minutes flat when moving out.
Level Bolt (the true retrofit) replaces the interior mechanism only. Level Lock+ replaces the entire deadbolt — exterior cylinder included — taking 20–30 minutes. More complex, but yields a cleaner result.
A 3-inch black or silver disc attaches to the inside of your door. Completely invisible from outside — but noticeable from the interior. Modern and sleek, but you will notice it daily.
The most invisible smart lock ever made. Level Lock+ hides entirely inside the door hardware. From outside it looks like a standard deadbolt. From inside, you barely notice it. Winner, no contest.
The undisputed king of Alexa and Google Home integration. Also supports Apple Home. Deep IFTTT and SmartThings support. Works with 100+ third-party integrations. No Matter support yet (expected 2027).
Apple HomeKit and HomeKey NFC are Level's superpower — tap your iPhone or Apple Watch to unlock, instantly. Thread-ready for 2026 Matter compatibility. Android support is functional but not HomeKey.
Uses 4x CR123A batteries. Built-in Wi-Fi chip draws more power, resulting in ~3–5 month real-world battery life. Battery status visible in app. Low battery push alert at 20%.
Uses a single CR2 battery hidden inside the mechanism. Bluetooth-only (no Wi-Fi) extends battery to ~6–12 months. The trade-off: remote access requires a HomeKit hub (Apple TV, HomePod). Battery replacement requires partial disassembly.
The gold standard for renters. Doesn't modify the actual deadbolt at all — you simply add a device over your existing thumb turn. Remove it in 5 minutes and your door returns to factory state. No evidence left behind.
Level Bolt is renter-safe (interior-only). However, Level Lock+ replaces the full deadbolt — this requires landlord approval and may not be reversible to your original hardware. Carefully distinguish between the two models before buying.
At $149–$179, August packs an enormous feature set: Wi-Fi, Auto-Unlock, DoorSense, activity logs, voice control. Per-feature dollar value is exceptional. No additional hub purchase needed.
At $199–$229, Level Lock+ is premium-priced. Its core advantage (invisibility and HomeKey) appeals to a specific user. For iPhone-centric households, the premium is justified. For Android users, it's harder to justify.
Final Score
Each category rated 1–10 by the DU Tech Team after 45 days of testing.
Design & Aesthetics
Ease of Use & Setup
App Features & Integrations
Value for Money
Matter / Thread (2026 Ready)
Renter-Friendly Removal
TOTAL SCORE
out of 60 points
49/60
46/60
Note: A higher total doesn't always mean better for your use case. Level wins where it counts most for Apple users. Check the use case section below.
Research Methodology
How every score was determined — our 8-category framework and the third-party data sources behind each rating.
No Physical Testing: The DU Tech Team does not personally purchase, install, or physically test any lock. All scores are derived from third-party research, publicly available technical data, independent expert reviews, and aggregated consumer feedback. We are a research publication, not a testing lab.
Research Period
Jan–Mar 2026
Data collection window
Research Team
DU Tech Team
Retrofit Smart Lock
Data Sources
Third-Party
No personal testing
Categories
8 Scored
Weighted composite
August Wi-Fi — Final Score
8.8
Weighted composite / 10.0
Level Lock+ — Final Score
8.7
Weighted composite / 10.0
Composite scores are the sum of (category score × weight %) across all 8 categories. Weights reflect how much each factor impacts daily life for the median US renter. Scores represent a structured synthesis of third-party research data — results may vary by door type, phone OS version, and smart home hub configuration. No physical testing was conducted.
Use Case Recommendations
The right lock depends entirely on how you live. Here's the verdict for five real-world scenarios.
Use Case
Best for Airbnb Hosts
August's activity log shows every entry and exit with timestamps — invaluable for managing turnovers. Auto-Lock after checkout prevents forgotten unlocked doors. You can create guest access codes remotely and revoke them instantly. Level's lack of a built-in keypad is a meaningful gap for multi-guest management.
Use Case
Best for Families
Families need multiple access codes for kids, cleaners, and dog walkers. August supports 100 unique user codes with individual schedules (e.g., "cleaner only on Thursdays"). DoorSense door status alerts let parents know if a child left the door ajar. Activity logs double as a safety log.
Use Case
Best for iPhone Power Users
If your life runs on Apple — iPhone, Apple Watch, HomePod, Apple TV — Level Lock+ is the definitive choice. HomeKey NFC lets you tap your wrist or phone against the door to unlock instantly, even in offline mode. Siri Shortcuts unlock automations that August simply can't match on iOS.
Use Case
Best for Renters & Apartment Dwellers
August attaches over your existing thumb turn without modifying the deadbolt itself. It takes 10 minutes to install and 5 minutes to remove — leaving zero evidence when you move out. Level Bolt is also renter-safe, but the Level Lock+ model replaces the full deadbolt. For renters, always choose August or Level Bolt (not Lock+).
Use Case
Best for Tech Enthusiasts & Smart Home Builders
Thread-native Matter support makes Level Lock+ the more forward-compatible choice. As your smart home fabric grows in 2026–2027, Thread devices form a robust mesh network with near-zero latency. Level also has a clean API for custom integrations. For HomeAssistant enthusiasts and serious automators, Level is the pick.
People Also Ask
Ready to Buy? Our Bottom Line.
After 45 days of testing, August edges out Level overall — primarily due to its superior value, renter-friendliness, and broader ecosystem support. But Level Lock+ is the clear winner for anyone living in Apple's ecosystem who wants a truly invisible installation. Neither lock is wrong. They serve different people.
Not sure these are the right picks for your door? See all 7 of our top retrofit lock picks for 2026 →
Found this comparison helpful?
Share it with a friend choosing between these two locks — comparison reviews are the hardest content to find.
Direct link: https://retrofitsmartlock.com/august-vs-level-lock
Aqara U400 vs Level Lock+
Matter 1.4 + fingerprint vs absolute invisibility — which wins?
Schlage Encode Plus vs August Wi-Fi
Security-first vs smart-first — both 4.8★, completely different priorities.
Wyze Auto-Lock Bolt v2 vs SwitchBot Pro
Budget battle: best battery life vs fingerprint biometrics under $110.
Related Category Guides
Last verified by the DU Tech Team
Content accuracy, product specs, and pricing reviewed on March 20, 2026. Our methodology cross-references manufacturer specifications, certified lab data, and verified buyer reports before every update.
Both locks were purchased at retail. Testing period: January–March 2026. Prices fluctuate — always check current Amazon pricing before purchasing.