Head-to-head · Best Smart Locks

Ultraloq U-Bolt Pro WiFi vs Yale Assure Lock 2

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Ultraloq U-Bolt Pro WiFi comes out ahead by a clear margin (4.3 vs 3.3). The gap is mostly about Users needing maximum unlock options like fingerprint scanning without a bridge — read the strengths below before deciding.

Higher ratedRanked #2 in Best Smart Locks

Ultraloq U-Bolt Pro WiFi

4.3

$199as of Apr 22

The Ultraloq U-Bolt Pro Wi-Fi offers exceptional versatility with six unlock methods and built-in Wi-Fi, making it a top choice for keyless entry. However, its utility is slightly hampered by the lack of Apple HomeKit support, reliance on 2.4GHz Wi-Fi, and mediocre battery performance. Despite these limitations, its compact design and robust fingerprint sensor make it a strong asset for most smart homes.

Strengths

— Supports six unlock methods including fingerprint, keypad, key, app, geofence, and Bluetooth
— Built-in Wi-Fi connectivity eliminates the need for a separate bridge or hub
— Compact design fits standard doors with universal backset adjustment (2-3/8" or 2-3/4")

Watch-outs

— Requires 2.4GHz Wi-Fi only and does not support dual-band networks
— Battery life is described as so-so, requiring 4 AA batteries
— Lacks support for Apple HomeKit and Amazon Key integration

$199 · Check Price on Amazon Full review →

Ranked #5 in Best Smart Locks

Yale Assure Lock 2

3.3

$229as of Apr 22

The Yale Assure Lock 2 offers versatile smart home integration with support for Wi-Fi, Bluetooth, and Thread, making it a flexible choice for modern homes. However, users report inconsistent Wi-Fi performance and shorter battery life when connected wirelessly, which may require frequent maintenance.

Strengths

— Supports multiple connectivity options including Wi-Fi, Bluetooth, and Thread for flexible smart home integration
— Features a sleek, modern keypad design with a backlit interface for easy nighttime entry
— Compatible with major smart home ecosystems like Apple Home, Google Home, and Amazon Alexa

Watch-outs

— Wi-Fi connectivity can be inconsistent and sometimes requires a separate bridge or hub for stable connection
— Battery life is shorter than expected when using Wi-Fi features, requiring frequent replacements

$229 · Check Price on Amazon Full review →

How they stack up

Ultraloq U-Bolt Pro WiFi

The Ultraloq U-Bolt Pro WiFi offers the most unlock versatility with six methods, including a robust fingerprint reader that the Schlage Encode Plus and August Wi-Fi Smart Lock completely lack. While it shares the 2.4GHz Wi-Fi limitation with the August, it avoids the Level Lock+'s need for a separate bridge for remote control, though it sacrifices Apple HomeKit support which is a primary selling point for the Level Lock+ and Schlage.

Yale Assure Lock 2

The Yale Assure Lock 2 distinguishes itself from the August and Level Lock+ by offering a built-in backlit keypad and support for Thread connectivity, though it suffers from inconsistent Wi-Fi performance that the Schlage Encode Plus and Ultraloq U-Bolt Pro handle more reliably with integrated hubs. Its battery life is notably shorter than the Ultraloq's when using Wi-Fi features, and it lacks the Level Lock+'s discreet, hidden-motor design.

Specs side-by-side

Spec	Ultraloq U-Bolt Pro WiFi	Yale Assure Lock 2
Connectivity	2.4GHz Wi-Fi, Bluetooth	Wi-Fi, Bluetooth, Thread
Smart Home Support	Alexa, Google Assistant, IFTTT, SmartThings	Apple Home, Google Home, Alexa
Unlock Methods	Fingerprint, Keypad, Key, App, Geofence, Bluetooth	Backlit Touchscreen
Power Source	4 AA batteries	4 AA Batteries
Fingerprint Capacity	Up to 100 fingerprints (2 per user)	—
Door Compatibility	2-3/8" (60mm) or 2-3/4" (70mm)	1-3/8" to 1-3/4"

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