Main trade-off
Aqara Smart Lock U50
No fingerprint reader.
Head-to-head
U50 fits Apple Home Key routines and Aqara-based homes. C220 fits fingerprint entry and direct Wi-Fi control without an additional hub.
Before you choose
Your everyday gesture is the real split between these locks.
What this is based on
U50 supplies Home Key without fingerprint sensing. C220 supplies fingerprint sensing without Home Key, so neither is a universal upgrade over the other.
Main trade-off
No fingerprint reader.
Main trade-off
No Apple Home Key.


Compare U50 and C220 for Home Key, fingerprint entry, remote control and battery handling, with clear limits on their smart-home support.
U50 fits Apple Home Key routines and Aqara-based homes. C220 fits fingerprint entry and direct Wi-Fi control without an additional hub.
Winner by situation
U50 has no reader.
C220 does not support it.
Both cover those entry routes.
That requirement excludes U50's Aqara remote-control path.
What matters in practice
Your everyday gesture is the real split between these locks.
U50 supplies Home Key without fingerprint sensing. C220 supplies fingerprint sensing without Home Key, so neither is a universal upgrade over the other.
C220 needs eight AA cells versus four for U50.
8 divided by 4 equals 2. This is a replacement-material count, not a prediction of annual battery expense.
U50's extra remote-access hardware matters most in a home without Aqara equipment.
Aqara remote access requires its Zigbee hub. C220's integrated Wi-Fi removes that separate component.

Aqara, DL-D05D
A keypad deadbolt with Apple Home Key, physical backup keys and Zigbee hub expansion for remote access and smart-home routines.

eufy Security, T8506
The documented door range is 1.375 to 2.17 inches thick. Entry options include fingerprint, keypad, phone.
Meaningful differences
| What changes | Aqara Smart Lock U50 | eufy Security Smart Lock C220 | Why it matters |
|---|---|---|---|
| Biometric entry | No fingerprint reader | Fingerprint reader | C220 can admit a registered user without a device or code. |
| Apple Home Key | Supported | Not supported | Only U50 supports the Apple Wallet tap routine. |
| Remote connection | Compatible Aqara Zigbee hub required | Built-in Wi-Fi | The C220 does not need a separate bridge for remote control. |
| Battery loading | Four AA batteries | Eight AA batteries | C220 doubles the battery count per complete change. Runtime claims use different test conditions. |
| Exterior rating | IPX5 | IP53 | U50 documents a higher water-test level. C220 also has a dust-protection rating. |
What you give up
Recommendation switch
Choose eufy Security Smart Lock C220. C220 provides the reader U50 lacks.
Choose Aqara Smart Lock U50. The hub hurdle is already addressed and U50 keeps the preferred entry gesture.
Choose neither. Consider a model that explicitly supports both.
What matters in practice
A Watch tap and a fingerprint are both quick entry methods, but they require different preparation. U50 depends on carrying the supported Apple device. C220 depends on registering and presenting a usable finger.
C220 can join the existing Wi-Fi network directly. U50 becomes a fuller remote lock when paired with the correct Aqara hub, so compare the complete installation.
Both retain keypad and mechanical entry. Leave a workable fallback for a drained battery, lost phone or finger that cannot be read. The published battery maximums are estimates under different usage patterns.
What the facts say
Useful conclusions from the current smart locks comparison, followed by the checked facts used to reach them.
None of the 25 models checked covers every part of “Tap my phone or watch to enter”, “Unlock with a fingerprint”, “Control it away from home without a hub”, and “Use it with Apple Home”, so the recommendation favors the closest practical compromise.
0 matching models from 25 checkedMatch countThe count uses the current product-to-need assignments for “Tap my phone or watch to enter”, “Unlock with a fingerprint”, “Control it away from home without a hub”, and “Use it with Apple Home”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Aqara Smart Lock U50 |
|
| |
| eufy Security Smart Lock C220 |
|
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

You want an iPhone or Apple Watch to act as the key.
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You prefer a fingerprint to carrying a phone or typing a code.
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