The catch
Aqara Smart Lock U50
Lacks a fingerprint reader.
Side by side
Apple Home Key routines and Aqara-based homes suit U50. For fingerprint entry and direct Wi-Fi control with no additional hub, C220 is the fit.
Before you buy
The main difference between these locks is the gesture you use every day.
Where this comes from
Neither lock is a universal upgrade over the other. U50 has Home Key but no fingerprint sensing, and C220 has fingerprint sensing but no Home Key.
The catch
Lacks a fingerprint reader.
The catch
Lacks Apple Home Key.


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U50 and C220 are compared on Home Key, fingerprint entry, remote control and battery handling, and the limits of their smart-home support are spelled out.
Apple Home Key routines and Aqara-based homes suit U50. For fingerprint entry and direct Wi-Fi control with no additional hub, C220 is the fit.
Which one fits
The U50 lacks a reader.
It isn’t supported by C220.
Each covers those entry routes.
U50’s Aqara remote-control path is ruled out by that requirement.
In practice
The main difference between these locks is the gesture you use every day.
Neither lock is a universal upgrade over the other. U50 has Home Key but no fingerprint sensing, and C220 has fingerprint sensing but no Home Key.
U50 takes four AA cells, while C220 needs eight.
8 divided by 4 is 2. It counts replacement material and does not predict annual battery expense.
In a home with no Aqara equipment, the extra remote-access hardware for U50 matters most.
Remote access through Aqara requires its Zigbee hub. With C220’s integrated Wi-Fi, that separate component isn’t needed.

Aqara, DL-D05D
This keypad deadbolt supports Apple Home Key and comes with physical backup keys. Adding a Zigbee hub extends it to remote access and smart-home routines.

eufy Security, T8506
You can enter by fingerprint, keypad or phone, and the documented door range is 1.375 to 2.17 inches thick.
Spec by spec
| Spec | Aqara Smart Lock U50 | eufy Security Smart Lock C220 | In practice |
|---|---|---|---|
| Biometric entry | No fingerprint reader | Fingerprint reader | A registered user can get in on C220 with no device or code. |
| Apple Home Key | Supported | Not supported | The Apple Wallet tap routine is supported by U50 alone. |
| Remote connection | Compatible Aqara Zigbee hub required | Built-in Wi-Fi | For remote control, the C220 needs no separate bridge. |
| Battery loading | Four AA batteries | Eight AA batteries | C220 doubles the number of batteries in each complete change. The runtime claims were made under different test conditions. |
| Exterior rating | IPX5 | IP53 | A higher water-test level is documented for U50. C220 also carries a dust-protection rating. |
Trade-offs
Change of plan
Go with eufy Security Smart Lock C220. U50 lacks the reader that C220 provides.
Go with Aqara Smart Lock U50. With the hub hurdle already cleared, U50 keeps the entry gesture you prefer.
Neither model fits. A model that explicitly supports both is worth considering.
Decision guide
U50 is the lock for Apple Home Key routines and Aqara-based homes. C220 is the lock for fingerprint entry and direct Wi-Fi control, with no additional hub.
Tapping a Watch and using a fingerprint are both quick, yet each needs different preparation. With U50 you have to be carrying the supported Apple device. For C220, a finger has to be registered and presented in a usable state.
C220 can connect straight to the Wi-Fi network you already have. U50 becomes a fuller remote lock when it is paired with the correct Aqara hub, so compare the complete installation.
Keypad and mechanical entry stay available on both. Make sure you have a workable fallback for a drained battery, a lost phone or a finger that cannot be read. The published battery maximums are estimates made under different usage patterns.
By the numbers
What we found across the smart locks we compare, plus the checked facts behind each finding.
None of the 25 models checked meets all of “Get in by tapping my phone or watch”, “Use a fingerprint to unlock”, “Run it remotely without needing a hub”, and “Pair it with Apple Home”, so the pick goes to the closest practical compromise.
0 models fit, out of 25 checkedHow we countedThe count uses each product's current fit ratings for “Get in by tapping my phone or watch”, “Use a fingerprint to unlock”, “Run it remotely without needing a hub”, and “Pair it with Apple Home”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Aqara Smart Lock U50 |
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| |
| eufy Security Smart Lock C220 |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Your iPhone or Apple Watch should serve as the key.
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You would rather use a fingerprint than carry a phone or type a code.
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