
Ultraloq U-Bolt
Score: 88/100
Yale Approach
Score: 78/100Rankings

The Ultraloq U-Bolt Pro is a high-security, hub-free smart lock featuring built-in WiFi and an 8-in-1 entry system. Its main trade-off is potentially reduced battery life due to the power demands of continuous WiFi connectivity. It is best suited for tech-savvy homeowners who want robust security and versatile access methods without additional hardware.

The Yale Approach Smart Wi-Fi Deadbolt is a renter-friendly retrofit lock that preserves existing hardware while adding remote access and auto-locking features. Its main limitation is the dependency on a separate Wi-Fi Bridge for connectivity and the lack of a built-in keypad. It is best suited for users seeking a non-invasive smart lock solution with broad smart home integration.
| Attribute | ![]() | ![]() |
|---|---|---|
50 credentialsbest | — | |
— | 4.57 metersbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Battery(3) | ||
Battery Life (hours) | N/A hours | hours |
Battery Type | AA Alkaline | AA |
Backup Power | true | false |
Installation & Fit(3) | ||
Backset Compatibility | 2-3/8" or 2-3/4" | Single-Cylinder |
Door Thickness Compatibility | 1-3/8" to 1-3/4" | |
Installation Type | Standard Deadbolt Replacement | Retrofit |
Connectivity & Smart Home(3) | ||
Connectivity Standards | WiFi, Bluetooth | Wi-Fi 4, Bluetooth 4.0 |
Voice Assistant Compatibility | Alexa, Google Assistant | Alexa, Google Assistant, Siri, SmartThings |
Bluetooth Range (meters) | N/A meters | 4.57 meters |
Durability & Environment(2) | ||
IP Rating | IP65 | |
Operating Temperature | -20°C to 65°C | 0°C to 40°C |
Access & Security(3) | ||
Security Grade | Grade 1 | Standard |
Unlock Methods | Fingerprint, Keypad, App, Mechanical Key, eKey, Voice | App, Virtual Keys, Physical Key |
Fingerprint Capacity (credentials) | 50 credentials | credentials |
Build & Design(1) | ||
Material | Zinc Alloy | Metal/Plastic |


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

TechHive and the Ultraloq community praise the U-Bolt Pro for its healthy facelift and improved auto-unlock geofencing over previous models. Reviewers highlight the configurable auto-lock feature using the door sensor and the plentiful features that balance security with convenience.
Everyday users generally praise the simple app navigation, reliable remote control, and door alerts. There is strong appreciation for the IP65 durability and BHMA certification, which contribute to a sense of security.

Professional reviewers and editors characterize the Yale Approach Lock as a sleek, budget-friendly smart lock that excels in simplicity and retrofit capability. They praise its reliable connectivity, seamless integration with major smart home ecosystems, and renter-friendly design that preserves existing hardware. However, experts consistently note the dependency on a separate Wi-Fi Bridge and the optional nature of the keypad as notable limitations compared to all-in-one solutions.
Everyday users generally express high satisfaction with the quick installation process and the ability to retain their original keys, making it a popular choice for renters. Common praise centers on the convenience of remote access, auto-locking features, and the discreet, low-profile design. Recurring complaints involve connectivity issues related to the Wi-Fi Bridge's range and occasional app glitches, along with frustration over the separate cost of the keypad.
“Engineering excellence”

“Quick install, often 5-10 minutes”

“Retaining original keys”


