eufy Security Smart Lock C220 — Keyless Entry That Just Works
Fast fingerprint entry, built‑in Wi‑Fi, and months of battery—solid deadbolt for under $100.
I’ve stood on my porch juggling groceries, a phone, and a handful of keys and thought, there has to be a better way. The eufy Security Smart Lock C220 promised fingerprint entry, built‑in Wi‑Fi (no hub), and long battery life — so I swapped the deadbolt to see if it truly makes coming home less of a circus.
After a few weeks I found the fingerprint reader fast and dependable, remote control actually useful, and the BHMA Grade 3 deadbolt reassuringly solid. It’s not flawless — the IP53 rating means I’d avoid exposing it to heavy spray, and some features depend on the app and Wi‑Fi — but for about $95 it’s a practical, low‑fuss upgrade that made daily entry noticeably easier.
eufy C220 Fingerprint Smart Deadbolt Lock
I found this lock to be a practical blend of modern smart features and dependable hardware, making daily entry effortless. It’s especially appealing if you want fingerprint convenience, remote control without extra hubs, and long battery life.
Eufy Security Smart Lock C220: Fingerprint Keyless Entry, Built-in Wi‑Fi & App Remote Control
My hands-on take: what this lock brings to your front door
I installed the C220 on a standard residential front door to see how well a modern smart deadbolt handles real daily use. The lock balances fast biometric access and remote control with a straightforward installation flow. Instead of being overwhelmed by features, I appreciated the focused design: fingerprint sensor, numeric keypad, mechanical key backup, and built-in Wi‑Fi that removes the need for an external bridge.
Key hardware and durability notes
The C220 is built around a BHMA Grade 3 deadbolt and a polished aluminum exterior. That means it’s designed for residential use with reasonable physical protection and a premium finish that resists daily wear. The keypad and fingerprint module are responsive, and the unit’s weight gives a solid impression when mounted.
| Spec area | What I noticed in practice |
|---|---|
| Materials | Sturdy aluminum faceplate, solid deadbolt feel |
| Weather protection | IP53 — fine for rain and splashes but not for constant outdoor exposure |
| Dimensions & fit | Compact footprint fits most standard doors; check strike alignment before install |
Installation and everyday use
Installation was intuitive. The provided instructions were clear; I swapped out my old deadbolt in under an hour. One common hiccup I ran into (and saw in other user reports) was strike plate alignment—if your existing cutout is old or offset, you may need to adjust the strike for smooth operation.
Batteries and power management
The lock runs on eight AA batteries and eufy advertises around eight months of runtime under typical use. In my day-to-day testing, battery life was excellent — I received low battery prompts well before the cells were drained and replacing them is tool-free.
Connectivity, app, and smart home integration
Built-in Wi‑Fi simplifies remote locking, unlocking, and activity logs without needing a separate bridge. The mobile app allows me to create temporary access codes, track entry history, and manage users. Integration with Google Assistant and Alexa is available, though voice features depend on your smart-home ecosystem.
How it performs in everyday scenarios
I used the lock on a main entrance subject to frequent comings and goings. Fingerprint access became my go-to because it’s faster than fumbling for keys or entering a code. For rentals and guest access, programmable codes and time-limited entries work well and can be revoked instantly. The physical key and keypad provide reliable fallback options.
Limitations and who should think twice
If you need a lock for an exposed porch or an entry subject to heavy dust and sheets of water, the IP53 rating is something to consider — it’s splash-resistant but not fully weatherproof in extreme conditions. Also, the lock’s advanced functionality leans on maintaining a stable Wi‑Fi connection; poor home networking can reduce remote features.
Bottom-line impression
I recommend the C220 if you want an easy-to-install deadbolt with fast fingerprint access, strong battery life, and built-in Wi‑Fi for remote management. It isn’t the most heavy-duty commercial lock out there, but for residential and short-term rental use, it hits a helpful balance of convenience, security, and reliability.
FAQ
In my experience the fingerprint sensor stays fast and accurate after months of daily use. The self-learning AI helps it adapt to small changes in fingerprints, and I rarely had to re-enroll prints. If your finger is very wet, dirty, or gloved, performance can drop, so I recommend a quick wipe of the sensor in those cases.
Yes — the lock includes a mechanical key as a backup. I keep a spare hidden nearby for emergencies, but the lock also provides low-battery alerts long before the battery is exhausted, so I’ve never had to rely on the physical key unexpectedly.
No. I appreciated that the unit’s built-in Wi‑Fi allows remote control and activity logs without an extra hub. That reduces complexity and cost, but it does mean reliable home Wi‑Fi is important for the remote features to work consistently.
Absolutely. I like the ability to create temporary access codes and view entry logs — features that are particularly useful for managing cleaners or guests. Codes can be revoked instantly, which gives me peace of mind between bookings.
The lock has an IP53 rating, which protects against dust ingress to some degree and splashes of water. I’d feel comfortable using it on a covered porch or typical residential front door, but I wouldn’t expose it to heavy rain or harsh outdoor conditions without additional protection.
Measure your door’s backset and thickness, and compare them to the lock’s specifications. Also check the existing strike plate alignment; if it’s off, you may need to chisel or adjust it for a smooth install. Finally, ensure you have a stable Wi‑Fi signal at your door for full functionality.
September 14, 2025 @ 10:00 am
Curious about warranty and returns — Amazon listing says something but anyone dealt with eufy support/warranty for this model?
September 15, 2025 @ 12:31 am
Amazon often handles returns directly if sold by Amazon. For manufacturer warranty, eufy typically offers a 1-year warranty — check their site or the product paperwork for specifics.
September 15, 2025 @ 2:50 pm
I returned mine through Amazon because the fingerprint kept failing. No issues with the return, got refunded in a week.
September 14, 2025 @ 10:01 am
Neutral take: functionally it’s great, but the app UX could be smoother. Took me a couple tries to share access with a family member.
Also, if you care about aesthetics, the polished black finish looks sleek. No scratches yet after two months.
September 15, 2025 @ 3:37 am
App sharing was clunky for me too — had to redo invites. But once set it worked fine.
September 15, 2025 @ 11:23 am
Pro tip: update the app before adding users. Some older app versions had bugs with invites.
September 15, 2025 @ 9:34 pm
Thanks — we noted app polish in the review. We’ll push for better clarity around user access in future updates.
September 15, 2025 @ 5:38 pm
Quick question: does this work with Google Assistant without an extra hub? The review mentioned built-in Wi‑Fi but I’m skeptical.
September 16, 2025 @ 9:13 am
Yes, it has built-in Wi‑Fi and can connect directly to Google Assistant and Alexa via the eufy app — no separate hub required.
September 16, 2025 @ 4:11 pm
I set it up with Alexa last week — just link the eufy Security skill and you’re good. Took maybe 5 minutes.
September 16, 2025 @ 3:38 pm
I’m picky about security. A couple observations:
– BHMA Grade 3 is fine for residential use, but if you’re renovating a rental or need insurance-grade hardware, consider Grade 1.
– The lock’s logging features are handy — app shows who unlocked and when, which I appreciate for peace of mind.
On the downside, the occasional app latency is annoying, but the local fingerprint always worked instantly for me.
September 17, 2025 @ 11:29 am
Good point about Grade 1 vs Grade 3 — we highlighted that trade-off in the verdict for readers with higher security requirements.
September 17, 2025 @ 2:21 pm
Yes, it keeps a reasonable history in the app. I can see entries from at least a month back.
September 17, 2025 @ 11:40 pm
Does the app keep a long history? Like, can you check logs from weeks ago?
September 18, 2025 @ 2:39 am
Be mindful: if you factory reset, logs might be wiped. Back up info before heavy troubleshooting.
September 21, 2025 @ 5:12 pm
Installed mine on a metal door and had to adjust the strike plate quite a bit. A few practical tips from my experience:
1) Measure backset carefully before you start. Took me 15 extra minutes.
2) The included physical key is useful — keep it hidden somewhere safe.
3) If you have a stormy climate, the IP53 rating means dust + light water resistance, not full weatherproofing.
Also, pro tip: keep spare AAA batteries around — the lock uses them and they can be a PITA to change if you’re in a rush.
September 22, 2025 @ 2:20 am
Good installation tips, Jacob. We mention the AAA batteries in the specs but appreciate the reminder about spare batteries.
September 22, 2025 @ 7:10 am
Thanks for the backset tip — I almost installed it off-center and would have had troubles closing the door!
September 22, 2025 @ 7:59 am
Haha ‘AAA batteries’ — I always forget about those. Thought it was rechargeable only. 😅
September 22, 2025 @ 12:01 pm
It does have a reliable power system but yeah, not plug-in. I keep lithium AAs on hand for longer life.
September 22, 2025 @ 7:52 pm
Just basic screwdrivers and a chisel/file if you need to recess the plate further. Nothing fancy.
September 22, 2025 @ 10:08 pm
Do you need special tools for adjusting the strike plate?
September 23, 2025 @ 7:00 pm
Me: buys smart lock to avoid fumbling keys
Also me: spends 20 minutes customizing access codes and app settings instead of doing anything productive. 😂
Overall the C220 is worth the money imo — fingerprint is just fun to use and the price under $100 is wild.
September 23, 2025 @ 9:21 pm
Totally relatable. Customization takes time but pays off. Glad you’re enjoying the convenience (and the novelty).
September 26, 2025 @ 5:26 am
Solid unit for the price. A few notes from my install:
– BHMA Grade 3 is fine for typical homes but isn’t equivalent to the top commercial grades.
– The deadbolt feels sturdy; the aluminum finish has held up.
– App remote control is convenient, but expect occasional cloud latency.
TL;DR: good balance of features and value.
September 26, 2025 @ 5:59 am
Thanks for the practical notes, Marcus. We flagged the Grade 3 rating in the review for readers who want higher security levels for certain applications.
September 26, 2025 @ 12:15 pm
Mostly seconds — like 2–6s to lock/unlock remotely. Rarely longer. Local fingerprint/unlock is instant.
September 27, 2025 @ 9:01 am
Can you elaborate on cloud latency? Are we talking seconds or minutes?
September 27, 2025 @ 12:34 pm
That’s normal for Wi‑Fi locks. If you need instant remote response, look into LAN-only setups, but that gets complicated.
September 27, 2025 @ 2:21 pm
Also depends on your internet upload speed at home. Slow uplink = slower remote commands.
September 27, 2025 @ 2:07 pm
Great review — thanks! I bought the C220 last month after reading something similar and I’m mostly impressed.
Installation was pretty straightforward for my wooden door (took about 25 minutes). Fingerprint reader is fast, and the battery life claim of ~8 months seems believable so far. The one hiccup: the app lost connection once during a storm, but it reconnected after a reboot of the lock.
Would love to know if anyone has tips to reduce false fingerprint reads. Also, that price on Amazon is tempting at $94.99.
September 28, 2025 @ 8:24 am
Agree on re-registering. I saved my thumbprint twice at different angles and it fixed most misses.
September 28, 2025 @ 8:53 pm
Glad you found the review useful, Sarah. For false reads try re-registering the fingerprint from different angles and cleaning the sensor occasionally — oils from fingers can affect accuracy.
September 28, 2025 @ 11:22 pm
I had no issues after wiping the sensor with isopropyl once. Just don’t soak it — IP53 isn’t a guarantee for full water immersion.
September 29, 2025 @ 12:24 am
Also try disabling quick unlock (if available) for testing — sometimes a slightly longer scan helps. 👍
October 7, 2025 @ 11:59 pm
Love the price point. At $94.99, it’s hard to beat the feature set: fingerprint, app, Wi‑Fi, and supposedly 8 months battery. Wonder if battery life varies by usage?
October 8, 2025 @ 6:25 am
Battery life will vary with how often you use remote features and how frequently people unlock with the touchscreen/fingerprint. The 8 months is an estimate under typical use.