eufy Security Smart Lock C220 Fingerprint Deadbolt — Fast Biometric Access, Built‑in Wi‑Fi

The eufy Security Smart Lock C220 is a Wi‑Fi enabled deadbolt with fast fingerprint access, multiple unlocking methods, and long battery life for convenient, keyless entry.

The C220 combines biometric convenience with smart‑home compatibility: it unlocks in under a second via fingerprint, supports keypad, physical key, Apple Watch, voice assistants, and the eufy Security app without requiring a separate bridge. Built to fit most standard deadbolts and endure daily use, this lock balances ease of installation with features designed for everyday security and connected routines.

How quickly and reliably does the fingerprint reader work?

The Smart Lock C220 uses onboard AI to improve fingerprint recognition each time you use it, delivering near‑instant access for registered users. The reader is tuned for fast response so entry feels seamless rather than fiddly.

• Unlock time: under 1 second for enrolled fingerprints
• Self‑learning AI improves accuracy with repeated use
• BHMA Grade 3 tested for more than 100,000 cycles

What are the ways I can unlock the door when I come home?

C220 offers six unlocking methods so you can choose what fits your routine or backup plan. Whether you prefer biometric access, a keypad code, or remote control, the lock supports local and remote options through built‑in Wi‑Fi.

• Fingerprint sensor for hands‑free entry
• Keypad PIN and physical mechanical key
• eufy Security app control (local and remote via Wi‑Fi)
• Apple Watch and voice commands through Alexa/Google Assistant

How long will the batteries last, and how does power management work?

The C220 runs on eight AA batteries and typically provides around eight months of operation under average use. The lock gives low‑battery notifications through the app so you can replace cells before power becomes an issue.

• Power source: 8 AA batteries (user‑replaceable)
• Estimated runtime: about 8 months under typical usage
• App alerts for low battery and simple swap procedure to restore power

Is the C220 easy to install and compatible with my door?

Installation is designed for most standard deadbolts and fits bores up to 54 mm after removing the included spacer. The process is intended to be quick and drill‑free for most households so you can upgrade in about 15 minutes.

• Fits most standard deadbolts; spacer included for smaller bores
• Approximate install time: 15 minutes without drilling
• Integrated Wi‑Fi means no separate hub or bridge required

Who this is for: The eufy Security Smart Lock C220 is aimed at homeowners or renters who want a fast, biometric first‑choice for everyday entry but also value multiple backup access methods and smart‑home integration. It's suitable for users who prefer a simple installation, expect reliable battery life, and want to include their deadbolt in eufy routines or control it remotely without adding extra network hardware.