ULTRALOQ U-Bolt WiFi Smart Lock with Door Sensor
A keypad-and-app smart deadbolt with built-in Wi-Fi, door status sensing, and auto-lock routines, designed to simplify everyday access while supporting remote control and basic smart home integrations.
The ULTRALOQ U-Bolt WiFi Smart Lock is a keyless deadbolt that combines a keypad, smartphone control, and a traditional backup key in one compact exterior. Built-in Wi-Fi enables remote locking, unlocking, and activity logs without a separate hub, while the included door sensor adds door-open status awareness for alerts and automation.
Auto-lock and auto-unlock features aim to reduce manual steps during arrivals and departures. It is intended for front doors, rentals, and everyday home access where convenience and shared entry options matter.

Home & Living
Full Review & Insights ▼
The U-Bolt WiFi model focuses on offering multiple access paths in a single device. Keypad entry is quick for daily use, and app control supports remote locking and unlocking for deliveries, guests, or property access management. The included door sensor adds a practical layer by reporting whether the door is open or closed, which helps reduce uncertainty when relying on auto-lock routines. Voice assistant compatibility can extend convenience, but the lock’s core value comes from hub-free Wi-Fi control and flexible user management.
Installation is generally straightforward for a standard deadbolt replacement, and the smaller exterior keypad footprint can look cleaner than larger smart-lock faces. Daily operation is simple once configured, with auto-lock helping reduce accidental unlocks and entry logs providing basic accountability. However, wireless reliability can vary by home layout, since the lock depends on a stable 2.4 GHz signal at the door position, and some setups may require improved coverage for consistent remote access. Auto-unlock performance may also depend on phone settings and proximity behavior, which can feel inconsistent in busy entry scenarios.
Battery performance is another tradeoff area. Many setups run smoothly for extended periods, but some experience faster drain or erratic behavior when connectivity or motor resistance increases. Ensuring the deadbolt moves freely matters for long-term stability, since binding can lead to failed cycles and higher power use. Overall, the lock offers strong everyday convenience and access flexibility, but it benefits from careful setup and realistic expectations around Wi-Fi range and battery variability.
Where it Falls Short
What We Love
✅ Multiple entry methods available
✅ Built-in Wi-Fi, no hub
✅ Door status sensor included
✅ Generally easy DIY install
✅ Auto-lock reduces missed locks
Where it Falls Short
❌ Wi-Fi depends on signal strength
❌ Battery drain can vary
❌ Auto-unlock can be inconsistent
❌ App reliability is mixed
❌ Sensor setup may be finicky
Tech
Scientific Studies that Relate to this Gadget:
No Related Science Articles for this Gadget (yet)

↓ Applications & Real-World Use ↓
🏠 Everyday Front Door Access: Replaces key routines with keypad and app entry while keeping a mechanical key option for backup.
🧳 Rental and Guest Entry Management: Supports sharing temporary access through codes or app permissions when managing visitors remotely.
🔔 Door Left Open Alerts: Uses the sensor to surface door status updates, which can help prevent leaving an entry unsecured.
🛠️ Quick Deadbolt Upgrade: Fits typical deadbolt cutouts and can modernize access without changing the full door hardware system.
🤖 Basic Smart Home Routines: Works with common assistants for simple voice commands and automations, provided Wi-Fi stability is solid.
Build Quality & Materials
Zinc Alloy - Used for the exterior body to provide a sturdier, more durable housing.
Plastic - Used for internal insulation and structural components around electronics.
Dimensions
Length: 7.49 cm (= 2.95 inch)
Width: 2.51 cm (= 0.99 inch)
Height: 7.49 cm (= 2.95 inch)
Our Take on the Product
The ULTRALOQ U-Bolt WiFi Smart Lock is best suited for homes and small rentals that want keypad convenience and remote access without adding a separate Wi-Fi bridge. Its door sensor can improve confidence in auto-lock routines by confirming door status, and the app-based logs and sharing features support practical household management.
The main limitations are tied to environment and setup: Wi-Fi performance depends on signal strength at the door, auto-unlock behavior can be inconsistent across phones, and battery life can vary when the motor works harder or connectivity struggles. It fits users who want flexible entry methods and are willing to optimize installation and network coverage.

DID YOU GET ANY OF THAT?
Read a summarization of this page's content in question-answer format ▽ (click to open and collapse the content)
Does this smart lock work without a separate Wi-Fi hub?
Yes, built-in Wi-Fi allows remote control without a separate bridge, but it relies on a stable 2.4 GHz signal at the door location. If the signal is weak, remote features may become inconsistent and improving coverage can make a noticeable difference.
What does the included door sensor actually do?
The sensor reports whether the door is open or closed, which helps avoid locking routines that run while the door is ajar. It can also support alerts so door status is not guessed based only on the deadbolt position.
How reliable is auto-unlock when approaching the door?
Auto-unlock can work smoothly when phone permissions and proximity behavior are aligned, but performance may vary by device settings and daily conditions. For consistent access, many households treat the keypad as the primary entry method and auto-unlock as a convenience feature.
Will battery life stay consistent over time?
Battery performance can vary based on usage frequency, Wi-Fi stability, and whether the deadbolt moves freely without resistance. If the bolt binds or the motor repeats attempts, batteries can drain faster and reliability can decline.
Is this suitable for rentals or shared homes?
It can be a practical fit because entry can be managed through codes or app permissions rather than copying keys. For smoother remote management, it helps to confirm Wi-Fi coverage at the door and to set clear access routines for guests or tenants.
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