eufy Security Smart Lock C220: full spec sheet and buying guide
The eufy Security Smart Lock C220 is an affordable fingerprint deadbolt with built-in Wi-Fi, so you don't need a separate bridge. At the time of writing it holds a 4.3/5 average from more than 4,258 Amazon ratings.

Fingerprint unlock in under a second, six ways to open, built-in Wi-Fi, about 8 months on AA batteries and a 15-minute no-drill installation.
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Ways to unlock
eufy lists six ways to open: fingerprint (under 1 second, with self-learning recognition that improves over time), the eufy Security app, the keypad, a physical key, Apple Watch, and voice with Alexa or Google Assistant. Built-in Wi-Fi gives remote control without a bridge, and it integrates with eufy doorbells in the same app.
Battery, security and install
Eight AA batteries last around 8 months, depending on use. It's BHMA Grade 3 certified after more than 100,000 lock cycles and raises an alarm on unusual attempts to open it. It fits most standard deadbolt bores (under 54 mm by removing a spacer) and installs in about 15 minutes without drilling.
Strengths based on its spec sheet
- Fast fingerprint unlock
- Built-in Wi-Fi, no bridge
- Six ways to unlock
- Affordable for a fingerprint lock
What to consider before buying
- BHMA Grade 3, not the top grade
- Uses 8 AA batteries
- Works best inside the eufy ecosystem
Want to compare this product with other smart home options? Check out our smart home buying guide.
Who is it ideal for?
Families who want to stop carrying keys, especially with kids, at a lower price.
Who is it NOT the best option for?
If you want the top BHMA rating from a long-established lock brand, the Schlage Encode is sturdier; see our smart home buying guide.
Frequently asked questions
How long does the battery last?
Around 8 months with 8 AA batteries, depending on how often it's used.
Does it need a bridge for Wi-Fi?
No, it has built-in Wi-Fi.
Do I need to drill?
No, eufy says it installs in about 15 minutes without drilling on most standard doors.

Is the eufy Security Smart Lock C220 the right fit for you?
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