Main trade-off
Aqara Smart Lock U100
Remote control and broader automations need a compatible Aqara hub.
Head-to-head
Aqara U100 vs Eufy C220: U100 serves home-key taps, eufy manages remote entry without a bridge
The short answer
U100 is the Apple Home Key choice. C220 is simpler for direct Wi-Fi app access in an Alexa or Google household, with no separate bridge in its control path.
Before you choose
The reasoning and the trade-offs
The battery change uses four extra cells
C220 requires eight AA cells against four in U100.
What this is based on
8 minus 4 equals 4 additional AA cells, and 8 divided by 4 equals 2. This does not prove twice the runtime.
Main trade-off
eufy Security Smart Lock C220
The eight-cell interior housing is not especially discreet.
Aqara Smart Lock U100
- Choose it for
- You want Apple Home Key and Apple Home integration.
- You already own a compatible Aqara hub.
- Main trade-off
- Remote control and broader automations need a compatible Aqara hub.
eufy Security Smart Lock C220
- Choose it for
- You want remote app control without a separate hub.
- You use Alexa or Google and have no Home Key requirement.
- Main trade-off
- The eight-cell interior housing is not especially discreet.
About this comparison
Compare Aqara U100 and eufy C220 for Apple access, batteries, remote control and smart-home support while keeping their shared fingerprint features in view.
Winner by situation
Start with what you need it to do
Use Apple Home Key daily
Only U100 supports it.
- Aqara Smart Lock U100
- Better fit
- eufy Security Smart Lock C220
- Caution
Want no separate remote bridge
C220 connects directly.
- Aqara Smart Lock U100
- Caution
- eufy Security Smart Lock C220
- Better fit
Already own an Aqara hub
U100 fits that network.
- Aqara Smart Lock U100
- Better fit
- eufy Security Smart Lock C220
- Good
Need fingerprint entry
Both include it.
- Aqara Smart Lock U100
- Good
- eufy Security Smart Lock C220
- Good
What matters in practice
The differences that matter
The battery change uses four extra cells
C220 requires eight AA cells against four in U100.
How we reached this conclusion
8 minus 4 equals 4 additional AA cells, and 8 divided by 4 equals 2. This does not prove twice the runtime.
The shared fingerprint reader is not the deciding feature
Both already cover fingerprint, code and key entry.
How we reached this conclusion
Compare the intersection of listed entry methods. Home Key is the additional U100 route.
A hub-free remote setup can outweigh extra integrations
C220 connects directly while U100 adds a hub for Aqara remote access.
How we reached this conclusion
Count zero separate remote bridges for C220 versus one compatible Aqara hub for U100 app remote control.
Choice A
Aqara, DL-D01D
Smart Lock U100
The documented door range is 1.375 to 2.17 inches thick. Entry options include fingerprint, home-key, keypad, phone.
- Best matched use
- replace my deadbolt and unlock with a fingerprint
Checked facts
- The documented door range is 1.375 to 2.17 inches thick.
- Entry options include fingerprint, home-key, keypad, phone.
- The documented platform list includes alexa, apple, google, matter.
- Installation is documented as full deadbolt replacement.
Choice B
eufy Security, T8506
Smart Lock C220
The documented door range is 1.375 to 2.17 inches thick. Entry options include fingerprint, keypad, phone.
- Best matched use
- replace my deadbolt and unlock with a fingerprint
Checked facts
- The documented door range is 1.375 to 2.17 inches thick.
- Entry options include fingerprint, keypad, phone.
- The documented platform list includes alexa, google.
- Installation is documented as full deadbolt replacement.
Meaningful differences
What changes the fit
| What changes | Aqara Smart Lock U100 | eufy Security Smart Lock C220 | Why it matters |
|---|---|---|---|
| Apple Home Key | Supported | Not supported | U100 accepts a tap from a compatible iPhone or Apple Watch. |
| Remote access | Compatible Aqara hub required for Aqara remote control | Direct Wi-Fi | C220 avoids an extra bridge. |
| Battery set | 4 AA | 8 AA | C220 uses twice as many replaceable cells. |
| Matter and HomeKit | Apple Home plus Matter through compatible Aqara hub | Neither supported in current C220 FAQ | The ecosystem ceiling differs despite shared fingerprint and code entry. |
What you give up
Every choice has a cost
If you choose Aqara Smart Lock U100
- The entry menu is broad, but setup is more involved than a stand-alone Wi-Fi lock.
If you choose eufy Security Smart Lock C220
- There is no Apple Home Key support.
Recommendation switch
The decision flips if...
You need Home Key and built-in Wi-Fi but can give up fingerprints
Choose neither. Encode Plus combines those two requirements in a replacement deadbolt.
What matters in practice
How to make the call
For someone wearing an Apple Watch
U100 Home Key is useful when the watch is the preferred credential. C220 cannot gain that capability merely because its app runs on an iPhone. Both can still unlock with a fingerprint, which may be sufficient for households that do not use Apple Home routines.
For an isolated smart front door
C220 makes sense when the lock is the only planned smart-home device and direct app access is enough. U100 hub becomes easier to justify when it also serves Aqara sensors. Include that equipment and an available power outlet in the setup plan.
For maintenance
C220 uses eight AA batteries, so keep a complete replacement set available. U100 uses four. Published battery-life estimates depend on operation and network conditions, so cell count alone should not be treated as a lifetime or cost forecast.
What this comparison cannot tell you
- Manufacturer feature documentation is used here. No burglary, battery-life or recognition-speed test was performed.
- Retrofit compatibility depends on the existing deadbolt and adapter. A matching door thickness alone does not establish fit.
What the facts say
What the comparison shows
Useful conclusions from the current smart locks comparison, followed by the checked facts used to reach them.
Compared set
None of the 25 models checked covers every part of “Use it with Apple Home”, “Tap my phone or watch to enter”, “Control it away from home without a hub”, and “Unlock with a fingerprint”, so the recommendation favors the closest practical compromise.
0 matching models from 25 checkedSee the checked facts and calculation notes
Match countThe count uses the current product-to-need assignments for “Use it with Apple Home”, “Tap my phone or watch to enter”, “Control it away from home without a hub”, and “Unlock with a fingerprint”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Aqara Smart Lock U100 |
|
| |
| eufy Security Smart Lock C220 |
|
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Aqara Smart Lock U100
You want Apple Home Key and Apple Home integration.
See price & reviews on Amazoneufy Security Smart Lock C220
You want remote app control without a separate hub.
See price & reviews on AmazonLinks open in a new tab.