1 / 7ULTRALOQ Bolt BOLT-F-NK Fingerprint Wi-Fi Smart Deadbolt
ULTRALOQ Bolt BOLT-F-NK is a fingerprint smart deadbolt with Wi-Fi, a door sensor, app access and multiple ways to unlock. It suits households or rentals that want shared entry codes and remote door-status checks, but the listing’s battery-life claims differ and customer feedback reports mixed battery and connectivity experiences.
At a glance
- The listing describes fingerprint, passcode, app, automatic, voice, web-portal and backup-key entry options.
- An included door sensor is described for door-status checks and alerts when the door is left open.
- Remote access and scheduled or one-time access sharing are presented for household members and guests.
- Apple Home integration is listed. The described home-hub functions require a HomePod or Apple TV.
- The listing claims ANSI/BHMA Grade 2 certification and IP65 weather resistance.
Pros and cons
Pros
- Multiple entry methods include fingerprint, keypad codes and two mechanical backup keys.
- The sensor and app features are intended to show door status, send open-door alerts and provide activity history.
- Passcode sharing and automatic locking options can be useful for rentals or households with guests.
Cons
- Remote features depend on a 2.4 GHz Wi-Fi network, and the listing recommends keeping the router within 70 ft of the lock.
- Battery life is not consistent across the listing: one highlight says 10 months, while another claim says up to 1 year under typical use.
Technical specifications
16 specifications| Brand | ULTRALOQ |
|---|---|
| Model | BOLT-F-NK |
| Lock type | Biometric, Combination Lock, Deadbolt, Keypad |
| Color | Black |
| Wireless connection listed | Bluetooth, Wi-Fi |
|---|---|
| Control methods listed | App, Remote, Touch, Voice |
| Unlock options described | Fingerprint ID stores up to 50 fingerprints, Passcodes store up to 50 codes, Smartphone App for iOS and Android, Auto Unlock, Voice Unlock with Siri, Alexa, or Google Assistant, Web Portal, and 2 Backup Keys. |
| Wi-Fi requirement | Supports 2.4 GHz Wi-Fi only; no bridge required. |
| Form factor | Square |
|---|---|
| Dimensions listed | 2.96 x 1.25 x 2.96 inches |
| Weight listed | 16 ounces |
| Installation claim | Upgrade your door in minutes using just a screwdriver—no wiring or professional installation required. |
| Material listed | Nickel, Zinc |
|---|
| Battery type and quantity | 8 AA batteries |
|---|---|
| Battery life claim | Powered by 8 AA batteries for up to 1 year of battery life under typical use. |
| Warranty description | lifetime mechanical warranty and 18 months electronic warranty |
What to know before buying
- The listing presents battery life as both 10 months and up to 1 year under typical use. Customer feedback also describes battery life and connectivity or reliability as mixed, so consider these reported experiences alongside the manufacturer’s claims. The Apple Home description says a HomePod or Apple TV is needed for automations, remote control and Siri voice commands.
What’s in the box
Included- 2 emergency keys
- 8 AA batteries
- Installation kit
- User guide
- Fingerprint Wi-Fi deadbolt with door sensor
Who is it for?
A good fit for
- Households seeking fingerprint or code entry alongside app-based door-status monitoring.
- Hosts or renters who need to share timed or one-time access codes with guests or service providers.
- Buyers seeking an Apple Home-compatible deadbolt and who have or plan to use a HomePod or Apple TV for the described home-hub functions.
Less suited to
- Buyers who require a lock that works with Wi-Fi bands other than 2.4 GHz.
- Anyone who needs battery life or wireless connectivity to be dependable without periodic monitoring, given the mixed customer feedback.

Customer reviews on Amazon
- 5 stars
67% 67% - 4 stars
14% 14% - 3 stars
5% 5% - 2 stars
4% 4% - 1 star
10% 10%
Customer feedback praises the lock’s features and ease of app use, while reports on battery life, Wi-Fi or app connectivity, reliability and value are mixed. For buyers relying on remote access, the stated 2.4 GHz Wi-Fi requirement and door-status features make those connectivity concerns particularly relevant. The overall rating distribution is mostly positive but includes a notable one-star share, so it does not establish consistent performance for every installation.
Positive themes
- Customers praise the range of features and say the app is easy to use.
Mixed feedback
- Battery-life feedback is mixed, with some customers reporting it lasts while others say it does not last long.
- Connectivity and reliability reports vary, including app-connection issues and reports that a lock stopped working.
- Opinions on value for money are divided.
Frequently asked questions
Does this lock support remote access?
The listing describes remote app control over 2.4 GHz Wi-Fi and says no bridge is required. It recommends keeping the router within 70 ft of the lock.
What are the ways to unlock it?
The listing describes fingerprint, passcodes, iOS and Android apps, auto unlock, voice unlock, a web portal and two backup keys. It says the lock stores up to 50 fingerprints and 50 passcodes.
Does Apple Home integration require extra equipment?
The listing says a HomePod or Apple TV is needed as a home hub for Apple Home automations, remote control and Siri voice commands.
What is the stated battery life?
The listing gives two claims: 10 months in an item highlight and up to 1 year under typical use in a feature description. Customer feedback reports mixed battery-life experiences.

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