eufy Smart Lock C220
Score: 92/100
Kwikset Home Connect 620
Score: 88/100Rankings
The eufy Security Smart Lock C220 is a hub-free, Wi-Fi-enabled deadbolt with BHMA Grade 3 security and AI fingerprint recognition. It offers six unlock methods and reliable performance in extreme weather conditions. The main trade-off is the reliance on 8 AA batteries without a rechargeable alternative. It is best suited for high-traffic households and users in extreme climates.
The Kwikset HomeConnect 620 is a Z-Wave 700 Long Range smart deadbolt featuring a 10-digit illuminated keypad, motorized operation, and SmartKey re-keying technology. It supports up to 250 user codes and integrates with major smart home ecosystems like Ring, SmartThings, and Alexa, offering extended range connectivity without Wi-Fi dependency. Ideal for households with multiple users needing up to 250 codes or those requiring key re-keying to match existing doors.
| Attribute | | |
|---|---|---|
5,840 hoursbest | — | |
40 mm | 50.8 mmbest | |
— | 69.85 mmbest | |
50 users | 250 usersbest | |
— | 65.56 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Installation & Compatibility(1) | ||
Door Thickness Compatibility (mm) | 40 mm | 34.9-50.8 mm |
Access & Security(4) | ||
Unlock Methods | 6 total | Keypad, Physical Key, App |
Security Grade | BHMA Grade 3 | Grade 2 |
Fingerprint Capacity (users) | 50 users | 250 users |
Encryption Standard | AES128 + ECC | S2, 128-bit AES |
Durability & Environment(2) | ||
Exterior Material | Zinc-alloy and stainless steel | Satin Nickel |
Operating Temperature (°C) | -30 to 70 °C | -40 to 65.56 °C |
Power & Battery(1) | ||
Battery Life (hours) | 5840 hours | null hours |
Features & Convenience(1) | ||
Keypad Type | Backlit numeric | 10-digit Illuminated |
Connectivity & Smart Home(2) | ||
Smart Home Ecosystem | Matter, Alexa, Google Assistant, Apple Home, Samsung SmartThings | Z-Wave |
Voice Assistant Support | Alexa, Google Assistant, Apple Home | Alexa, Google Assistant |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the C220 as a 'triumph of form and function,' highlighting its reliability, hub-free Wi-Fi convenience, and premium build quality.
Everyday users appreciate the zero lockout anxiety provided by the physical key backup and the fast, accurate fingerprint recognition. Common praise includes the easy 15-minute installation and reliable app notifications.
“triumph of form and function”
“arguably the best lock in its class”
Professional reviewers praise the Kwikset HomeConnect 620 for its Z-Wave 700 Long Range technology, which offers extended connectivity up to 1 mile, and its S2 encryption for security. Experts highlight the SmartStart feature for easy setup, the capacity for 250 users, and the lock's battery efficiency compared to Wi-Fi alternatives. The lock is considered a premium upgrade for Z-Wave ecosystems like Ring and SmartThings, with additional appreciation for its SmartKey compatibility and weatherproof buttons.
Everyday users commonly praise the lock for its reliable keypad and key access, long battery life, and the convenience of SmartKey re-keying. Many appreciate the strong integration with Ring and SmartThings, as well as features like audit trails and scheduled access codes. Recurring complaints involve bolt jamming on shallow strike plates, frequent battery changes due to door misalignment, and the need for manual re-handing after installation.
