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.

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The short answer

Ultraloq U-Bolt Pro WiFi comes out ahead by a clear margin (4.4 vs 3.8). 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

4.4

3 sources$159.99as of Aug 1

Six unlock methods and built-in Wi-Fi make the Ultraloq U-Bolt Pro Wi-Fi one of the more capable keyless entry options around. Working against it: no Apple HomeKit support, a 2.4GHz-only Wi-Fi radio, and mediocre battery performance. The compact design and reliable fingerprint sensor still make it a strong addition to 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

$159.99 · Check Price on Amazon Full review →

Ranked #5 in Best Smart Locks

Yale Assure Lock 2

3.8

6 sources$279.99as of Aug 1

Wi-Fi, Bluetooth, and Thread support give the Yale Assure Lock 2 enough connectivity options to fit almost any modern home. Users report inconsistent Wi-Fi performance, though, and shorter battery life when it runs wirelessly, which can mean more 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

$279.99 · 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)	None
Door Compatibility	2-3/8" (60mm) or 2-3/4" (70mm)	1-3/8" to 1-3/4"
Material	Zinc	Metal, Zinc

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