Sifely Smart Lock
Score: 78/100
eufy Smart Lock C30
Score: 72/100Rankings
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.
The eufy Security Smart Lock C30 is a Wi-Fi-enabled deadbolt with physical buttons and no hub requirement, designed for straightforward DIY installation. It offers robust weather resistance and auto-lock features but lacks biometric scanning and broad smart home compatibility. It is ideal for users already in the eufy ecosystem seeking simple remote access and durability.
| Attribute | | |
|---|---|---|
12 monthsbest | 5 months | |
1 years | 18 yearsbest | |
2 inchesbest | — | |
2.75 inchesbest | — | |
158 °Fbest | -22 °F |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Battery(1) | ||
Battery Life (months) | 12 months | 5 months |
Support & Warranty(1) | ||
Warranty Length (years) | 1 years | 18 years |
Security & Access(4) | ||
Security Grade | Grade 3 | |
Unlock Methods | Fingerprint, Keypad, Key Fob, Card, App, Key | Physical Key, Voice, App, Physical Buttons |
Keypad Type | Keypad | Physical Buttons |
Encryption Standard | White-box | Standard |
Installation & Compatibility(2) | ||
Door Thickness Compatibility (inches) | 1.3125-2 inches | Standard inches |
Backset (inches) | 2.375-2.75 inches | Standard inches |
Connectivity & Smart Features(3) | ||
Smart Home Integration | Alexa, Google Assistant | Alexa, Google Assistant, eufy Ecosystem |
Bluetooth Range (feet) | feet | Not Specified feet |
Wi-Fi Standard | Optional | Wi-Fi |
Build & Durability(4) | ||
Material | Zinc Alloy | Standard |
IP Rating | IPX3 | |
Operating Temperature (°F) | 14-158 °F | -22 to 158 °F |
Finish | Matte Black | Black |
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 coverage is limited, with a 2026 YouTube review highlighting the lock's straightforward installation, reliable battery life, and robust security features. Best Buy lists the product with a high rating, but there are no in-depth editorials from major tech sites like CNET or Wirecutter available in the current data.
There is no direct consumer review data or forum discussion available in the search results. While product pages emphasize reliability, specific user testimonials, common praise, or recurring complaints cannot be detailed due to a lack of aggregated user feedback.
“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”
