Up to 8 months
with
Wi-Fi connection
andAlkaline
batteries
and
Bundle
Cloud Platform
Accessory
U-Bolt Series
Our most popular smart lock is also PC Magazine’s Editors Choice “Best Smart Lock.” Enjoy the convenience of using your finger as your key.
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Free Shipping Over $99
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18 Months Warranty
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30 Days Return
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Pay with Ease
Innovating the Future of Biometric Access Control
ULTRALOQ introduced the world’s first biometric smart lock with a fingerprint scanner in 2016, setting a new industry standard for smart locks.
7 World Firsts
Since that time, we have continued to lead the industry by launching seven world-first product breakthroughs. ULTRALOQ is now widely recognized for pushing the boundaries of innovation and delivering the most advanced and reliable smart locks on the market.
1 Million+
Today, we’re proud to say that over 1 million customers in the USA trust ULTRALOQ.
Works with the most popular smart home platforms
* Matter work with select ULTRALOQ models.
Enjoy many ways to conveniently unlock and lock your home
ULTRALOQ’s U home app works with iPhone and Android phones. Apple Home app supported by Apple Home and Matter models.
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iOS
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Android
Phone App
Watch App
Pin Code
Auto Unlock/Lock
Physical Key
Easily manage and share access
Unlock/Lock From Anywhere
Share Virtual Keys
View Access Logs
Receive Alerts
Engineered to meet the industry standards
Unlike most lock manufacturers, every smart lock from Ultraloq is designed to meet the highest possible standards from the Builders Hardware Manufacturers Association (BHMA) and the American National Standards Institute (ANSI).
Advanced Data Encryption
Two-layer, 128-bit AES data encryption with AWS integration
IP65 Weather Protection
IP65 rating shields against water, dust, hot, and cold(-22°F~149°F)
Commercial-Grade Quality
ANSI Grade 1 means maximum security and durability
One great lock. Three different models.
Every customer and smart home is different. That’s why we offer smart locks with different options and ways to connect.
Battery Life
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Use Cases
DIY install
ULTRALOQ is designed to fit any US standard door and only takes a few minutes and four screws to install. No wiring or drilling required.
Customer Reviews
4.8 Based on 36 Reviews
Customer Photos
- Reviews
- Questions
Filter Reviews:
SV
01/07/2025
Steven V.
United StatesFunctional but lacking some ergonomic touches to make it feel a bit more premium
I come from having an UL3 for years which I love. This deadbolt unit does it's job, but some of the design choices feel less than premium. The ergonomics of using the fingerprint reader are less than ideal. A slight downward angle could go a long way. Making the number keys slightly larger and concave is something I think might be nice. Other than that the unit does it's job nicely. I am a bit bummed that a 2nd little piece is needed to know if it's open or closed, feels like a poor design or something that could be a type of sensor almost similar to a stuf finder on the side of the deadbolt plate or something. It's been knocked off the wall twice in the month that I've owned it.
SS
01/26/2025
Shane S.
United States
JP
01/23/2025
James P.
United Statesour Bolt Fingerprint lock works great!
The lock has been a great addition to our household. It's convenient to have a variety of options to gain entry: fingerprint, numeric code, Apple Home app on Apple Watch and iPhone. Haven't used a key yet but nice to have it as well. Preparing to get another Bolt Fingerprint for another door.
SP
01/05/2025
Szabolcs P.
AustraliaA great solution for everyday household use
The installation and setup are easy. The lock comes in a neat packaging with all the instructions and parts Your doors and doorframes may need modifications if a different lock was installed already. Also you may need to pre-drill the screw holes if the material is hard, as I managed to break two screws during the installation (the second one broke due to q not-deep-enough drilled hole). Using an Android phone the setup took about 2 minutes as the instructions are crystal clear. The software is user-friendly, and has plenty of features, with room for improvement. You can manage the lock and set up notifications for doors being left open or being opened manually, however in my experience these notifications get delivered with a couple of minutes of delay sometimes. Also it would be great to be able to add lock mode changes to scenes, for example changing it to lockdown when the Sleep scene is activated. The fingerprint sensor is really sensitive so you have to make sure that all areas of your fingerprint is properly captured. Apart from these smaller pain points, the lock is highly recommended.
Specifications
Size
Physical & Storage
Hardware type
Deadbolt
Deadbolt
Mechanical Key Override
Yes
Yes
Case Material
Premium Zinc Alloy
Premium Zinc Alloy
Weight
3.3 lb / 1.5 kg
3.3 lb / 1.5 kg
Finish
2.95 x 4.92 x 1.39 inch / 75 x 125 x 35.3 mm (back panel)
2.95 x 2.95 x 0.98 inch / 75 x 75 x 25 mm (front panel)
2.95 x 4.92 x 1.39 inch / 75 x 125 x 35.3 mm (back panel)
2.95 x 2.95 x 0.98 inch / 75 x 75 x 25 mm (front panel)
Working Temperature
Outside lock body: -22 ̊F (-30 ̊C) to 149 ̊F (65 ̊C) IP65 Rated
Inside lock body: 14 ̊F (-10 ̊C) to 131 ̊F (55 ̊C)
Outside lock body: -22 ̊F (-30 ̊C) to 149 ̊F (65 ̊C) IP65 Rated
Inside lock body: 14 ̊F (-10 ̊C) to 131 ̊F (55 ̊C)
Storage
Users: 50
Codes: 50
Users: 50
Codes: 50
Power
Working Voltage
6V (4 X Alkaline AA batteries)
6V (4 X Alkaline AA batteries)
Battery Life
U-Bolt, U-Bolt + Bridge, U-Bolt Z-Wave: Up to 1 year
U-Bolt WiFi: 3-6 months
U-Bolt, U-Bolt + Bridge, U-Bolt Z-Wave: Up to 1 year
U-Bolt WiFi: 3-6 months
Connectivity & Integration
Connectivity
Standard Bluetooth, optional WiFi (2.4GHz, 802.11 b/g/n) or
Z-Wave Plus (908.4 MHz, 916 MHz)
Standard Bluetooth, optional WiFi (2.4GHz, 802.11 b/g/n) or
Z-Wave Plus (908.4 MHz, 916 MHz)
Compatible Smartphone
iOS and Android
iOS and Android
Compatible Smart Home Eco-system1
Alexa, Google Assistant, IFTTT, SmartThings
Alexa, Google Assistant, IFTTT, SmartThings
Installation & Warranty
Door Prep
2-1/8 inch (54 mm) diameter face hole & 1 inch (25 mm) diameter latch hole
2-1/8 inch (54 mm) diameter face hole & 1 inch (25 mm) diameter latch hole
Door Thickness
1.375" - 1.75" (35-45mm)
1.375" - 1.75" (35-45mm)
Door Handing
Reversible
Reversible
Backset
Adjustable to 2-3/8 inch or 2-3/4 inch
Adjustable to 2-3/8 inch or 2-3/4 inch
Warranty
18 months electronic warranty and lifetime mechanical warranty
18 months electronic warranty and lifetime mechanical warranty
FAQ
1、Will Ultraloq U-Bolt Series Work on My Door?
Ultraloq U-Bolt Series fit the United States standard doors with a 2-1/8" (53 mm) diameter borehole. Click here to check the detailed dimensions.
For thicker doors Between 1-3⁄4" to 2-1⁄4", please order the Ultraloq Thick Door Kit.
2、How can I unlock U-Bolt Series if battery runs out?
There will be low battery alert on the lock and App when battery is low. Red LED will ash 3 times along with 3 beeps when the lock is activated. Please replace batteries. If battery runs out, you can use the backup key to unlock
3、What's the matching handle for Ultraloq U-Bolt Series?
ULTRALOQ Handle Push Pull matches U-Bolt Series well. You can click here to order.
4、What is the user capacity for the U-Bolt Series?
The U-Bolt Series supports a maximum of 60 users, and each user can register 1 code.
5. How do I connect the lock to the internet?
If you purchased the Bluetooth version, you'll need to buy an additional WiFi Adaptor to connect to the internet. Click here to purchase.
If you purchased the Z-Wave version, the package includes a WiFi Adaptor. Simply plug it in, configure your home Wi-Fi, and you're all set.
If you purchased the built-in WiFi version, no additional WiFi Adaptor is needed. Just connect it to your home Wi-Fi, and you're good to go.
6. How do I connect to Alexa, Google Assistant, SmartThings, or IFTTT?
First, connect your lock to WiFi. For the Bluetooth version, you’ll need to purchase a WiFi Adaptor separately. For other versions, no additional purchase is needed. Download the U Home Appand follow the setup instructions provided in the app.
1. Some smart features, including Remote Smartphone Control, Smart Notifications, Smart Home Integration including Works with Alexa / Google Assistant / SmartThings / IFTTT with require U-Bolt + WiFi Bridge, U-Bolt WiFi or U-Bolt Z-Wave with a compatible Z-Wave-certified smart home system like SmartThings, Habitat etc. Features may vary based on Z-Wave controller. Working internet and Wi-Fi is required.
2. Some smart features including Door Status and Smart Auto Lock require U-Bolt WiFi and U-Bolt Z-Wave. U-Bolt and U-Bolt + WiFi Bridge doesn't show you door status and auto locks on a preset timer.
3. Compatible with Z-Wave Hubs requires U-Bolt Z-Wave with Z-Wave-certified smart home system like SmartThings, Habitat etc.
4. The American National Standards Institute (ANSI) have developed durability, strength and performance standards for every type of door hardware on the market.