Yamiry Smart Knob
Score: 70/100
eufy Smart Lock C220
Score: 88/100Rankings
The eufy Security Smart Lock C220 is a hub-free, Wi-Fi-enabled deadbolt featuring self-learning AI fingerprint recognition and BHMA Grade 3 durability. It offers six unlock methods and up to 8 months of battery life, making it suitable for high-traffic households. The main trade-off is the reliance on 8 AA batteries without a rechargeable option, which may require frequent maintenance.
The Yamiry Smart Door Handle Lock (YR01) is a 5-in-1 keyless entry smart knob designed for DIY installation without extra drilling. It supports multiple unlock methods including fingerprint, keypad, IC cards, smartphone app via Bluetooth, and mechanical keys. The main trade-off is the lack of native Wi-Fi connectivity and potential installation difficulties regarding latch alignment.
| Attribute | | |
|---|---|---|
— | 8 monthsbest | |
— | 1.5 yearsbest | |
— | 150 feetbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Battery(1) | ||
Battery Life (months) | Not Specified months | 8 months |
Support & Warranty(1) | ||
Warranty Length (years) | Not Specified years | 1.5 years |
Security & Access(5) | ||
Auto-Lock | Not Specified | true |
Security Grade | Not Specified | Grade 3 |
Unlock Methods | Fingerprint, Keypad, IC Card, App, Mechanical Key, Voice | Fingerprint, App, Voice, Passcode, Physical Key, Button |
Keypad Type | Anti-Peep | Backlit Numeric Anti-Peep |
Encryption Standard | Not Specified | AES128 + ECC |
Installation & Compatibility(2) | ||
Backset (inches) | Not Specified inches | Standard inches |
Installation Type | DIY | No Drilling Required |
Connectivity & Smart Features(3) | ||
Smart Home Integration | Alexa (via Gateway) | Matter, Alexa, Google, Apple Home, SmartThings |
Bluetooth Range (feet) | Not Specified feet | 150 feet |
Wi-Fi Standard | None (Gateway Required) | Built-in Wi-Fi |
Build & Durability(3) | ||
Material | Not Specified | Zinc-alloy/Stainless Steel |
IP Rating | Not Specified | IP53 |
Finish | Matte Black | Black |
Products in the top-left offer the best value (high score, low price).
No independent professional reviews from major tech outlets were found in the available data. The manufacturer and support pages emphasize the product's ease of installation, diverse access methods, and family-friendly fingerprint capabilities, while addressing common setup issues like latch alignment and app pairing.
Everyday users generally praise the convenience of multiple keyless entry methods and the reliability of the fingerprint scanner for older kids.
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 that improves over time.
“Fingerprint feature works perfectly... great for older kids”
“several different ways to open including remotely from phone”
“feels very durable and solid”
