Level Bolt
Score: 78/100
Yale Assure Lock 2
Score: 88/100Rankings
The Yale Assure Lock 2 is a high-feature smart deadbolt that stands out for its support of Apple Home Key and extensive connectivity options including Z-Wave and ZigBee. It offers robust security with a tamper alarm and DoorSense sensor, though it relies on standard AA batteries. It is best suited for tech-savvy users who want deep smart home integration and Apple ecosystem compatibility.
The Level Bolt is a retrofit smart lock that installs inside an existing deadbolt, preserving the original hardware and aesthetic appearance of the door. It offers multiple access methods including mobile app, keypad, voice control, and physical keys, while maintaining ANSI Grade 1/A security standards. It is best suited for design-conscious homeowners who want smart technology without visible hardware changes.
| Attribute | | |
|---|---|---|
— | 4.5 metersbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Battery(1) | ||
Battery Type | CR2 Lithium | 4 x AA |
Installation & Fit(3) | ||
Backset Compatibility | 60mm, 70mm | 60-70 mm |
Door Thickness Compatibility | 44mm+ | 35-57 mm |
Installation Type | Retrofit | Deadbolt |
Connectivity & Smart Home(3) | ||
Connectivity Standards | Bluetooth | Wi-Fi, Bluetooth, Z-Wave, ZigBee |
Voice Assistant Compatibility | Alexa, Google Assistant, Siri | Alexa, Google, Apple Home |
Bluetooth Range (meters) | N/A meters | 4.5 meters |
Durability & Environment(2) | ||
IP Rating | N/A | |
Operating Temperature | N/A | -25°C to 60°C |
Access & Security(3) | ||
Security Grade | Grade 1/A | Grade 2 |
Unlock Methods | App, Keypad, Voice, Physical Keys | Keypad, Physical Key, App, Voice, Auto-Unlock, Apple Watch |
Fingerprint Capacity (credentials) | N/A credentials | credentials |
Build & Design(1) | ||
Material | Metal | Zinc |
Products in the top-left offer the best value (high score, low price).
Professional reviewers view the Level Bolt as a breakthrough in smart lock design philosophy, prioritizing home aesthetic over technological visibility.
Everyday users consistently praise the invisible design and the preservation of their existing keys, noting that it maintains home aesthetics while adding smart functionality.
“Disappears inside your door”
“Key still works perfectly”
“Solid build quality”
