
Yale Assure SL Black Suede
Score: 78/100
Ultraloq U-Bolt 5-in-1 Black
Score: 88/100Rankings

The ULTRALOQ U-Bolt is a versatile smart deadbolt offering keyless entry via fingerprint, PIN, app, NFC, and voice assistants, featuring Matter-over-Thread compatibility for seamless integration with major smart home ecosystems. It provides auto-unlock geofencing and durable IP65 weatherproofing, making it suitable for DIY installation on standard US doors. However, remote access features often require purchasing an additional WiFi or Z-Wave bridge.

The Yale Assure SL is a versatile smart deadbolt featuring built-in Wi-Fi and a touchscreen keypad, ideal for retrofitting standard doors. Its main drawback is the reliance on disposable AA batteries which require frequent replacement. It is best suited for homeowners who want immediate remote access without purchasing additional connectivity hubs.
| Attribute | ![]() | ![]() |
|---|---|---|
6 months | 12 monthsbest | |
35 mm | 40 mmbest | |
60 mmbest | 60 mmbest | |
-25 °C | -20 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity & Smart Home(2) | ||
Smart Home Compatibility | Alexa, Google, Siri, SmartThings, Hubitat | Alexa, Google, SmartThings, Matter |
Voice Assistant Support | Alexa, Google, Siri | Alexa, Google, SmartThings |
Access & Security(3) | ||
Encryption Standard | EN 61000.6.3 | 128-bit AES |
Unlock Methods | Keypad, App, Voice, Auto-unlock | Fingerprint, PIN, App, NFC, Voice, Key |
Fingerprint Recognition Speed (seconds) | null seconds | seconds |
Durability & Environment(2) | ||
IP Rating | IP54 | IP65 |
Operating Temperature (°C) | -25 to 60 °C | -20 to 65 °C |
Power & Battery(2) | ||
Battery Life (months) | 6 months | 12 months |
Power Source | 4 x AA Alkaline | AA Batteries |
Physical & Installation(3) | ||
Door Thickness Compatibility (mm) | 35-57 mm | 40 mm |
Backset (mm) | 60-70 mm | 60 or 70 mm |
Installation Type | Retrofit | Deadbolt Replacement |
Support & Service(1) | ||
Warranty | Lifetime Mechanical / 1 Year Electronics | Lifetime Mechanical |

Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the Yale Assure Lock SL as a popular and reliable deadbolt for home automation, noting its versatility across platforms like August, SmartThings, and Hubitat.
Everyday users generally praise the convenience of keyless entry, the ease of installation, and the reliability of the app and voice assistant integration.



Choose the Bolt for superior Matter certification and NFC/UWB features if available in your region.

TechHive praised the U-Bolt Pro WiFi variant for its improved auto-unlock geofencing, configurable auto-lock, and anti-peep keypad, calling it reliable for everyday use. Matter Alpha highlighted the Bolt Fingerprint as a solid pick for its Matter-over-Thread efficiency.
Users appreciate the hands-free unlock capability for carrying groceries and the multi-admin Matter control features. Potential issues include the dependency on a bridge for remote access and battery replacement frequency in high-use scenarios.