Sifely Smart Lock
Score: 78/100
Ultraloq Bolt
Score: 90/100Rankings
The ULTRALOQ Bolt Fingerprint WiFi Smart Deadbolt is a Matter-over-Thread smart lock featuring 8-in-1 keyless entry and robust ANSI Grade 1 security. Its main limitation is the lack of a Micro-USB backup power interface and the 2.4GHz Wi-Fi restriction. It is best suited for Apple Home users seeking native Siri integration and multi-ecosystem homes.
The Sifely Keyless Entry Fingerprint Smart Door Lock is a lever-style smart lock designed to retrofit standard residential doors without drilling. It offers five to six unlock methods including fingerprint, keypad, key cards, fobs, and physical keys, with optional remote access via a separate Wi-Fi gateway. It is best suited for indoor or sheltered exterior doors and multi-user households.
| Attribute | | |
|---|---|---|
12 monthsbest | 10 months | |
1 years | 1.5 yearsbest | |
2 inchesbest | 1.75 inches | |
2.75 inchesbest | 2.375 inches | |
— | 30 feetbest | |
158 °Fbest | -4 °F |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Battery(1) | ||
Battery Life (months) | 12 months | 10 months |
Support & Warranty(1) | ||
Warranty Length (years) | 1 years | 1.5 years |
Security & Access(4) | ||
Security Grade | Grade 1 | |
Unlock Methods | Fingerprint, Keypad, Key Fob, Card, App, Key | Fingerprint, App, Keypad, Voice, Key |
Keypad Type | Keypad | Anti-peep |
Encryption Standard | White-box | 128-bit AES |
Installation & Compatibility(2) | ||
Door Thickness Compatibility (inches) | 1.3125-2 inches | 1.375-1.75 inches |
Backset (inches) | 2.375-2.75 inches | 2.375 inches |
Connectivity & Smart Features(3) | ||
Smart Home Integration | Alexa, Google Assistant | Apple Home, Siri, Alexa, Google, SmartThings, IFTTT |
Bluetooth Range (feet) | feet | 30 feet |
Wi-Fi Standard | Optional | 802.11b/g/n |
Build & Durability(3) | ||
IP Rating | IP65 | |
Operating Temperature (°F) | 14-158 °F | -4 °F |
Finish | Matte Black | Satin Nickel |
Products in the top-left offer the best value (high score, low price).
Professional reviewers position the Sifely keyless fingerprint lock as a budget-friendly, easy-install option with strong suitability for indoor, family, and light exterior use. They caution against relying on it in consistently harsh outdoor conditions or for users with very high-moisture or dirt-prone environments, noting that fingerprint reliability under wet conditions is less stable than higher-end competitors.
Everyday users tend to rate this lock highly for interior use and protected entry doors, praising its ease of installation and value for money. The main caveats reported by consumers are conditional grip on fingerprint recognition when hands are wet or dirty, and the need for a gateway to enable full remote features.
Professional reviewers and editors highly praise the ULTRALOQ Bolt for its robust Matter and Thread support, which facilitates seamless cross-platform compatibility with major smart home ecosystems like Apple Home, Google, and Alexa.
Everyday user feedback is limited but positive, with available reviews highlighting the convenience of built-in WiFi and app-based remote control. Users commonly praise the ease of DIY installation and the reliability of the lock for daily use.
“much better than expected for the price”
“love the fingerprint unlock indoors; it becomes a habitual, quick method”
“short video guide and clear markings made replacement of their old lock very simple”
Choose Sifely for cost-effective indoor or sheltered use with high user limits; choose Ultraloq for all-weather exterior durability.
