
Yamiry Smart Knob
Score: 70/100
Sifely Smart Lock
Score: 78/100Rankings

The samtechT Bluetooth Fingerprint Smart Lock offers a robust ANSI Grade 2 motorized deadbolt with UL fire-resistance and versatile entry options. Its main drawback is the bulkier handle design and occasional app connectivity issues. It is best suited for homeowners seeking a budget-friendly DIY upgrade with guest code management.

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 | |
— | 1.375 inchesbest | |
— | 2.375 inchesbest | |
— | 98 feetbest | |
— | -13 °Fbest |
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 | years |
Security & Access(5) | ||
Auto-Lock | Not Specified | true |
Security Grade | Not Specified | Grade 2 |
Unlock Methods | Fingerprint, Keypad, IC Card, App, Mechanical Key, Voice | Fingerprint, Keypad, FOB, Code, App, Physical Key |
Keypad Type | Anti-Peep | Touchscreen |
Encryption Standard | Not Specified | |
Installation & Compatibility(2) | ||
Door Thickness Compatibility (inches) | Standard inches | 1.375 inches |
Backset (inches) | Not Specified inches | 2.375 inches |
Connectivity & Smart Features(3) | ||
Smart Home Integration | Alexa (via Gateway) | Alexa, Google |
Bluetooth Range (feet) | Not Specified feet | 98 feet |
Wi-Fi Standard | None (Gateway Required) | 802.11 b/g/n |
Build & Durability(3) | ||
Material | Not Specified | |
IP Rating | Not Specified | IP54 |
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 generally view the samtechT lock positively for its value-to-feature ratio and ease of DIY installation. They highlight the robust mechanical security provided by the ANSI Grade 2 rating and UL fire resistance, noting that the motorized deadbolt offers a solid upgrade over thumb-turn styles.
Everyday consumers frequently praise the convenience of keyless entry and the ability to generate time-limited codes for guests and family members. The fingerprint sensor is generally well-regarded for speed and accuracy, though some users note issues with wet or dirty hands.
“Fingerprint feature works perfectly... great for older kids”

“several different ways to open including remotely from phone”

“feels very durable and solid”


