The catch
Aqara Smart Lock U100
You need a compatible Aqara hub for remote control and wider automations.
Side by side
Aqara DL-D01D vs Aqara EL-D02E: U100 replaces the deadbolt, while U200 keeps the outside cylinder
Quick verdict
For a complete replacement with one exterior unit, go with U100. When keeping the outside cylinder is non-negotiable, go with U200.
Before you buy
Why, and what it costs you
Where these two really part ways
Aqara Smart Lock U100 is the better match for “Swap out my deadbolt” and “Install on a door beyond 1 3/4 inches thick”. Aqara Smart Lock U200, Silver is the better match for “Leave the outside of the lock as is” and “Pair it with Google Home”.
Where this comes from
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
The catch
Aqara Smart Lock U200, Silver
Controlling it remotely through Matter takes a compatible Matter controller and a Thread border router.
Aqara Smart Lock U100
- Why pick it
- Swap out my deadbolt
- Install on a door beyond 1 3/4 inches thick
- The catch
- You need a compatible Aqara hub for remote control and wider automations.
Aqara Smart Lock U200, Silver
- Why pick it
- Leave the outside of the lock as is
- Upgrade a rental in a way you can undo
- The catch
- Controlling it remotely through Matter takes a compatible Matter controller and a Thread border router.
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What this page compares
A look at how Aqara DL-D01D and Aqara EL-D02E differ in door installation, entry methods and home platform.
This one comes down to door installation and home platform first, then to the limits of your own setup.
Which one fits
Pick the situations that sound like you
Swap out my deadbolt
Aqara Smart Lock U100 lists “full deadbolt replacement. 1.375 to 2.17 in door” for door installation, while Aqara Smart Lock U200, Silver lists “Interior retrofit with a separate exterior keypad. Keeps the outside lock and fits over the interior thumbturn”. Measure your space and mounting points first. This can be a hard limit on fit.
- Aqara Smart Lock U100
- Better fit
- Aqara Smart Lock U200, Silver
- Depends
Leave the outside of the lock as is
Add smart hardware to the interior side of your existing single-cylinder deadbolt.
- Aqara Smart Lock U100
- Depends
- Aqara Smart Lock U200, Silver
- Better fit
Install on a door beyond 1 3/4 inches thick
Documented to fit doors thicker than the most common residential thickness, in some cases with a kit.
- Aqara Smart Lock U100
- Better fit
- Aqara Smart Lock U200, Silver
- Depends
Pair it with Google Home
Aqara Smart Lock U100 lists “alexa, apple, google, matter” for home platform, while Aqara Smart Lock U200, Silver lists “apple, google, alexa, matter”. This shapes setup and day-to-day use more than the core physical job.
- Aqara Smart Lock U100
- Good
- Aqara Smart Lock U200, Silver
- Better fit
Pair it with Alexa
Operate the lock through Alexa, or automate it.
- Aqara Smart Lock U100
- Good
- Aqara Smart Lock U200, Silver
- Better fit
Base the setup on Matter
Rely on native Matter, or on Matter support the maker documents through its ecosystem.
- Aqara Smart Lock U100
- Good
- Aqara Smart Lock U200, Silver
- Better fit
In practice
Differences you will notice
Where these two really part ways
Aqara Smart Lock U100 is the better match for “Swap out my deadbolt” and “Install on a door beyond 1 3/4 inches thick”. Aqara Smart Lock U200, Silver is the better match for “Leave the outside of the lock as is” and “Pair it with Google Home”.
How we worked this out
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
How many models fit “Leave the outside of the lock as is”
3 of the 25 smart locks checked fit this need. Aqara Smart Lock U200, Silver makes the cut. Aqara Smart Lock U100 does not.
How we worked this out
The count filters every model in the current category for a strong or useful fit on this single need.
Models that handle “Use a fingerprint to unlock” and “Leave the outside of the lock as is”
2 of the 25 smart locks checked handle both “Use a fingerprint to unlock” and “Leave the outside of the lock as is”. Aqara Smart Lock U200, Silver makes the cut. Aqara Smart Lock U100 does not.
How we worked this out
You can reproduce the count by filtering the current category for models with a strong or useful fit on both needs.
Option A
Aqara, DL-D01D
Smart Lock U100
Entry options listed are fingerprint, home-key, keypad and phone, and the documented door range is 1.375 to 2.17 inches thick.
- Best for
- unlock with a fingerprint on a replacement for my deadbolt
Facts we checked
- 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.
- The documented installation is a full deadbolt replacement.
Option B
Aqara, EL-D02E
Smart Lock U200, Silver
It lists apple, google, alexa, matter among its documented platforms, with fingerprint, home-key, keypad and phone as entry options.
- Best for
- unlock with a fingerprint while leaving the outside of the lock as it is
Facts we checked
- Entry options include fingerprint, home-key, keypad, phone.
- The documented platform list includes apple, google, alexa, matter.
- Installation is documented as interior retrofit with a separate exterior keypad.
Spec by spec
Where they really differ
| Spec | Aqara Smart Lock U100 | Aqara Smart Lock U200, Silver | In practice |
|---|---|---|---|
| Door installation | full deadbolt replacement. 1.375 to 2.17 in door | Interior retrofit with a separate exterior keypad. Keeps the outside lock and fits over the interior thumbturn | Fit can be a hard limit, so measure your space and mounting points before anything else. |
| Entry methods | fingerprint, home-key, keypad, phone | fingerprint, home-key, keypad, phone | Both models show the same result for “Entry methods”, so this row won't decide between them. |
| Home platform | alexa, apple, google, matter | apple, google, alexa, matter | Setup and everyday use depend on it more than the core physical job does. |
Trade-offs
What each pick costs you
With Aqara Smart Lock U100
- There are plenty of ways to get in, though setup takes more effort than with a stand-alone Wi-Fi lock.
With Aqara Smart Lock U200, Silver
- Whether it fits depends on the shape of your current cylinder or thumbturn, so run Aqara's compatibility check before you order.
Decision guide
How to decide
A complete replacement with one exterior unit points to U100. If the outside cylinder must stay, U200 is the answer.
Where they really differ
The retrofit choice here is U200.
How the specs change things
Fingerprint and Apple Home Key are supported on both.
What you give up
The U200 needs a Thread border router for remote Matter use.
What this page can’t tell you
- Mortise and multipoint doors have to be checked for fit separately.
- Firmware updates can change what a platform supports.
- A sound door and strike are still needed, whatever consumer lock you pick.
By the numbers
What the data shows
What we found across the smart locks we compare, plus the checked facts behind each finding.
How many fit
None of the 25 models checked meets all of “Swap out my deadbolt”, “Use a fingerprint to unlock”, and “Leave the outside of the lock as is”, so the pick goes to the closest practical compromise.
0 models fit, out of 25 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “Swap out my deadbolt”, “Use a fingerprint to unlock”, and “Leave the outside of the lock as is”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Aqara Smart Lock U100 |
|
| |
| Aqara Smart Lock U200, Silver |
|
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Aqara Smart Lock U100
Swap out my deadbolt
See price & reviews on AmazonAqara Smart Lock U200, Silver
Leave the outside of the lock as is
See price & reviews on AmazonEach link opens in a new tab.
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