Yamiry Smart Knob
Score: 72/100
Kwikset Home Connect 620
Score: 88/100Rankings
The Kwikset HomeConnect 620 is a premium Z-Wave smart lock offering extended range connectivity and robust integration with major smart home ecosystems. Its long-range capabilities and battery efficiency make it ideal for larger homes or those with weak Wi-Fi signals. However, the requirement for a hub and potential bolt jamming issues are notable trade-offs.
The Yamiry Smart Door Handle Lock is a versatile keyless entry solution offering five unlock methods and easy DIY installation. Its main limitation is the lack of native WiFi, requiring a separate gateway for remote access. It is best suited for families and small offices needing flexible access management.
| Attribute | | |
|---|---|---|
7.5 months | 18 monthsbest | |
45 mm | 50.8 mmbest | |
60 mm | 69.8 mmbest | |
| ↓ lower better | 1 secondsbest | — |
— | 65 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Connectivity & Smart Home(2) | ||
Smart Home Compatibility | Alexa | Ring, SmartThings, Hubitat, Alexa, Google |
Voice Assistant Support | Alexa | Alexa, Google Assistant |
Access & Security(5) | ||
Encryption Standard | Not specified | S2/128-bit AES |
Unlock Methods | Fingerprint, Keypad, IC Card, App, Mechanical Key, Voice | Hub, Keypad, Key |
Auto-Lock | false | true |
Fingerprint Recognition Speed (seconds) | 1.0 seconds | null seconds |
Alarms | false | true |
Durability & Environment(2) | ||
IP Rating | Not specified | null |
Operating Temperature (°C) | Not specified °C | -40 to 65 °C |
Power & Battery(2) | ||
Battery Life (months) | 6-9 months | 18 months |
Power Source | AA Batteries | 4 AA Batteries |
Physical & Installation(4) | ||
Door Thickness Compatibility (mm) | 40-50 mm | 34.9-50.8 mm |
Backset (mm) | 60 mm | 60.3-69.8 mm |
Lock Type | Smart Knob | Deadbolt |
Installation Type | DIY | Standard Deadbolt Replacement |
Support & Service(1) | ||
Warranty | 1 | null |
Products in the top-left offer the best value (high score, low price).
The manufacturer emphasizes ease of installation and diverse access methods, while addressing common setup issues like latch alignment and app pairing.
Users praise the convenience of multiple keyless entry methods and the reliability of the fingerprint scanner, but complain about installation difficulties and Bluetooth pairing issues.
“Fingerprint feature works perfectly... great for older kids”
“easy to install... app has battery percentage indicator”
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.
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.
