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Keys Out. Freedom In.

Enjoy Keyless Entry with ULTRALOQ U-Bolt Pro WiFi smart lock!

The 1st Choice for Millions of Families

Discover The Ultimate Smart Lock!

There is no purer form of security and flexibility than the ULTRALOQ U-Bolt Pro lineup. Harnessing the latest smart technology for day-to-day functionality without sacrificing durability and strength, this lineup redefines a better entry experience and elevates your home security.

  • 360° Live Fingerprint ID

  • Control from anywhere

  • Auto Lock

  • Smart Notification

  • Simple Installation

6-in-1 Keyless Entry Smart Lock
Smartphone App
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Increased Security

No more wondering if your door is locked and closed. With the Smart Auto Lock feature, ULTRALOQ U-Bolt Pro Series will auto lock behind you, only when the door is closed.

This was a replacement lock for a preexisting dead bolt. It fit perfectly within the door. The Ultraloq U-Bolt Pro WiFi is simple to program, works every time, connects to Wi-Fi without missing a beat. The auto lock feature works perfectly as well so there is no chance of leaving the door unlocked by mistake. This is a purchase you will be happy with for years to come.
—— Darrin H.

ULTRALOQ U-Bolt Pro Series

  • U-Bolt Pro WiFi
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Customer Reviews
4.5 Based on 845 Reviews
5 ★
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Samantha SVG verified by SHOP
United States

This product is amazing, makes me feel so much safer. Other locks just didn’t work for me. I will be purchasing more for my homes and recommending to friends! Perfect for anyone that wants to feel and stay safe, secure, and relaxed in their home.

Shane M.
United States United States

A great Wi-Fi lock

Set up was easy not super difficult. I had to cut the hole for the deadbolt and then mortis for the closer. Those were not previously in my setup. I like the Wi-Fi and Bluetooth setup. Although I realize through setting up that the Wi-Fi sensor cannot be blocked by walls books CDs or DVDs. Line of sight is better or right next to it if it all possible. That was a trial and error that was not explained or shown in detail or explanation in the information on installation. The app is not very easy to use in Android form. I have no information on Apple as none of those devices are in my household. If I leave the house or fiddle with the lock through the app it shows disabled. I have to completely close the app and open it back up to show whether it's locked or unlocked. This is not a good design and should have not left testing until this was fixed. Google home is much more efficient and shows it correctly when it is either locked or unlocked. When I arrive home it does not sense me right away at any lock and auto unlock does not work correctly when I'm by the door I intend to use. So if I'm using the back door I have to manually unlock it as auto unlock fails. Auto unlocked work perfectly on the opposite door though and has every time. I would also like to see in the app a choice to make one door over the other the priority. Meaning the door that would be used more than the others and that one would auto unlock correctly. I would also like to see a disabled feature so if you're working in the yard it doesn't lock on you.

Antoni M.
United States United States

I couldn't make it work

The experience was very bad and I am very upset abou it cause I really liked it. I spent hours trying to make it work and the lock never behaved as it was expected, it got jammed all the time and needed at least 3 cycles to totally close or open... I mounted and unmounted it so many times that the door got damaged... finally I returned it.

United States United States


It was hard to install in a standard door even when all the measurements were true. Next, I couldn't connect the to bridge, bridge to wifi (2.4) or Bluetooth. All attempts failed. Couldn't get any help from the support after multiple attempts. The lock just didn't work. Am returning it. Will never buy another device from Ultraloc. Never received any service, couldn't get any response from support even after multiple tries. Don't see people liked it. I bought an Ultraloq U-Bolt Pro with a bridge. If available, would give a 0 star rating.

Physical & Storage
Hardware type
Mechanical Key Override
Case Material
Premium Zinc Alloy
3.3 lb / 1.5 kg
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)
Users: 50
Codes: 50
Working Voltage
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
Connectivity & Integration
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
Compatible Smart Home Eco-system1
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
Door Thickness
1.375" - 1.75" (35-45mm)
Door Handing
Adjustable to 2-3/8 inch or 2-3/4 inch
18 months electronic warranty and lifetime mechanical warranty

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.

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