
Harfo Fingerprint Lock
Score: 72/100
eufy Smart Lock C33
Score: 78/100Rankings

The eufy Smart Lock C33 is a keyless deadbolt featuring integrated Wi-Fi and adaptive biometric fingerprint recognition for easy, hub-free remote access. It offers multiple unlock methods and a hassle-free installation process, making it ideal for renters and families. However, it lacks the highest security grade and native Apple Home compatibility found in some competitors.

The Harfo Fingerprint Door Lock offers robust keyless entry with high-accuracy fingerprint scanning and multiple access methods. Its main limitation is the poor visibility of the touchscreen keypad in daylight and the need for a separate gateway for smart features. It is best suited for users prioritizing keyless convenience and durability over advanced smart home integration.
| Attribute | ![]() | ![]() |
|---|---|---|
6 months | 10 monthsbest | |
50 usersbest | — | |
35 mmbest | — | |
1 years | 1.5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Access & Biometrics(3) | ||
Unlock Methods | Fingerprint, Keypad, IC Card, App, Physical Key | Fingerprint, Keypad, App, Key, NFC |
Fingerprint Capacity (users) | 50 users | Adaptive users |
Fingerprint Recognition Speed (ms) | null ms | N/A ms |
Smart Connectivity(1) | ||
Connectivity Type | Wi-Fi (Optional) | Wi-Fi |
Build & Design(1) | ||
Material | Satin Nickel | Aluminum |
Installation & Fit(3) | ||
Door Thickness Compatibility (mm) | 35-55 mm | N/A mm |
Backset (inches) | null inches | N/A inches |
Installation Type | Standard Deadbolt Replacement | No drilling |
Power & Battery(1) | ||
Battery Life (months) | 6 months | 10 months |
Features & Usability(1) | ||
Keypad Type | Touchscreen | Back-lit, Anti-peeping |
Security & Compliance(4) | ||
Security Grade | Grade 2 | Grade 3 |
IP Rating | null | IP53 |
Encryption Standard | null | N/A |
Warranty Length (years) | 1 years | 1.5 years |

Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the Harfo smart locks for their excellent fingerprint recognition performance and solid structural construction. The keypad and fingerprint reader responsiveness are praised after activation.
The search results do not contain specific consumer reviews or user feedback sections separate from professional assessments, so no distinct consumer sentiment data is available.



Professional reviewers praise the seamless fingerprint integration and hassle-free installation, deeming it ideal for rentals. Editors highlight the reliable Wi-Fi app control but flag the Grade 3 rating as entry-level.
Everyday users appreciate the effortless family use, quick app setup, and reliable fingerprint performance for daily front door entry. Recurring complaints focus on fingerprint recognition issues in wet conditions and faster-than-expected battery drain in high-traffic homes.