Level Bolt
Score: 85/100
eufy C210
Score: 82/100Rankings
The Level Bolt is a retrofit smart lock that installs inside an existing deadbolt, preserving the original hardware and aesthetic appearance of the door. It offers multiple access methods and high security standards but suffers from short battery life and the need for additional hubs. It is best suited for design-conscious homeowners who want smart technology without visible hardware changes.
The eufy Security Smart Lock C210 is a keyless entry deadbolt featuring built-in Wi-Fi and a touchscreen keypad, designed for easy retrofitting on standard US doors without requiring a separate hub. It offers five unlock methods and BHMA Grade 3 durability certification, making it a reliable option for budget-conscious homeowners. However, it lacks biometric scanning and door-open detection capabilities.
| Attribute | | |
|---|---|---|
4 months | 6 monthsbest | |
1.75 inchesbest | — | |
2.375 inchesbest | — | |
0 entriesbest | 0 entriesbest | |
2 yearsbest | 1.5 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Access & Security(1) | ||
Unlock Methods | App, Keypad, Voice, Physical Key | App, Keypad, Physical Key, Apple Watch, Voice |
Connectivity & Smart Features(1) | ||
Bluetooth Version | 5.0 | Yes |
Durability & Environment(3) | ||
IP Rating | Not specified | IPX3 |
Body Material | Stainless Steel | Unknown |
Operating Temperature (°F) | Not specified °F | -22 to 158 °F |
Installation & Fitment(2) | ||
Door Thickness Compatibility (inches) | 1.75 inches | 1.38-2.13 inches |
Backset (inches) | 2.375 inches | 2.36-2.76 inches |
Security & Compliance(2) | ||
Security Grade | Grade 1/A | Grade 3 |
Encryption Support | Matter | Bank-grade |
Support & Warranty(1) | ||
Warranty Period (years) | 2 years | 1.5 years |
Power & Battery(2) | ||
Battery Life (months) | 4 months | 6 months |
Battery Type | CR2 | 4 AA |
Products in the top-left offer the best value (high score, low price).
Professional reviewers view the Level Bolt as a breakthrough in smart lock design philosophy, prioritizing home aesthetic over technological visibility. It is praised for its ingenious engineering, particularly the invisible retrofit design and robust security standards.
Everyday users consistently praise the invisible design and the preservation of their existing keys, noting that it maintains home aesthetics while adding smart functionality. Common complaints revolve around the short battery life requiring frequent replacements and the necessity of buying additional hubs for remote access.
Professional reviewers praise the C210 for its compact design, capable Wi-Fi performance without a hub, and easy setup process. Experts highlight the robust BHMA testing for long-term reliability and the versatility of its five unlock methods. However, they criticize the absence of biometrics, door sense, and a premium build quality when compared to more expensive competitors.
Everyday users love the sleek look, quick installation, and reliable app remote control that works without range limits. Many appreciate the five unlock options and family-friendly features like temporary codes. Recurring complaints include the app's inability to track individual users, faster-than-expected battery drain, lightweight build quality, and the lack of door-open detection.
“Disappears inside your door”
“Key still works perfectly”
“Solid build quality”
