Main trade-off
Aqara Smart Lock U100
Remote control and broader automations need a compatible Aqara hub.
Head-to-head
Aqara DL-D01D vs Aqara EL-D02E: U200 keeps the outside cylinder, U100 replaces the deadbolt
The short answer
Choose U100 for a complete replacement with one exterior unit. Choose U200 when keeping the outside cylinder is the hard constraint.
Before you choose
The reasoning and the trade-offs
The needs that actually separate these two
Aqara Smart Lock U100 has the stronger fit for “Replace my deadbolt” and “Fit a door thicker than 1 3/4 inches”. Aqara Smart Lock U200, Silver has the stronger fit for “Keep the lock outside unchanged” and “Use it with Google Home”.
What this is based on
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
Main trade-off
Aqara Smart Lock U200, Silver
Remote Matter control needs a compatible Matter controller and Thread border router.
Aqara Smart Lock U100
- Choose it for
- Replace my deadbolt
- Fit a door thicker than 1 3/4 inches
- Main trade-off
- Remote control and broader automations need a compatible Aqara hub.
Aqara Smart Lock U200, Silver
- Choose it for
- Keep the lock outside unchanged
- Make a reversible renter upgrade
- Main trade-off
- Remote Matter control needs a compatible Matter controller and Thread border router.
About this comparison
Aqara DL-D01D and Aqara EL-D02E compared by door installation, entry methods, home platform.
The practical choice turns on door installation and home platform, then on the constraints in your own setup.
Winner by situation
Start with what you need it to do
Replace my deadbolt
For door installation, Aqara Smart Lock U100 records “full deadbolt replacement. 1.375 to 2.17 in door” and Aqara Smart Lock U200, Silver records “Interior retrofit with a separate exterior keypad. Keeps the outside lock and fits over the interior thumbturn”. Measure the available space and mounting points because this can be a hard fit constraint.
- Aqara Smart Lock U100
- Better fit
- Aqara Smart Lock U200, Silver
- Depends
Keep the lock outside unchanged
Retrofit the interior side of an existing single-cylinder deadbolt.
- Aqara Smart Lock U100
- Depends
- Aqara Smart Lock U200, Silver
- Better fit
Fit a door thicker than 1 3/4 inches
Documented fit above the most common residential door thickness, sometimes with a kit.
- Aqara Smart Lock U100
- Better fit
- Aqara Smart Lock U200, Silver
- Depends
Use it with Google Home
For home platform, Aqara Smart Lock U100 records “alexa, apple, google, matter” and Aqara Smart Lock U200, Silver records “apple, google, alexa, matter”. This changes setup and daily operation more than the product's core physical job.
- Aqara Smart Lock U100
- Good
- Aqara Smart Lock U200, Silver
- Better fit
Use it with Alexa
Control or automate the lock with Alexa.
- Aqara Smart Lock U100
- Good
- Aqara Smart Lock U200, Silver
- Better fit
Build around Matter
Use native Matter or documented Matter support through the maker ecosystem.
- Aqara Smart Lock U100
- Good
- Aqara Smart Lock U200, Silver
- Better fit
What matters in practice
The differences that matter
The needs that actually separate these two
Aqara Smart Lock U100 has the stronger fit for “Replace my deadbolt” and “Fit a door thicker than 1 3/4 inches”. Aqara Smart Lock U200, Silver has the stronger fit for “Keep the lock outside unchanged” and “Use it with Google Home”.
How we reached this conclusion
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
How much choice there is for “Keep the lock outside unchanged”
3 of 25 checked smart locks match this need. Aqara Smart Lock U200, Silver is in that group. Aqara Smart Lock U100 is not.
How we reached this conclusion
The count filters the current category dataset for a strong or useful fit on this one buyer need.
Finding models for “Unlock with a fingerprint” and “Keep the lock outside unchanged”
2 of 25 checked smart locks cover both “Unlock with a fingerprint” and “Keep the lock outside unchanged”. Aqara Smart Lock U200, Silver is in that group. Aqara Smart Lock U100 is not.
How we reached this conclusion
The count is reproduced by filtering the current category dataset for products with a strong or useful fit for both needs.
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
Aqara, EL-D02E
Smart Lock U200, Silver
Entry options include fingerprint, home-key, keypad, phone. The documented platform list includes apple, google, alexa, matter.
- Best matched use
- keep the lock outside unchanged and unlock with a fingerprint
Checked facts
- 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.
Meaningful differences
What changes the fit
| What changes | Aqara Smart Lock U100 | Aqara Smart Lock U200, Silver | Why it matters |
|---|---|---|---|
| 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 | Measure the available space and mounting points because this can be a hard fit constraint. |
| Entry methods | fingerprint, home-key, keypad, phone | fingerprint, home-key, keypad, phone | Both records show the same result for “Entry methods”, so this row does not separate them. |
| Home platform | alexa, apple, google, matter | apple, google, alexa, matter | This changes setup and daily operation more than the product's core physical job. |
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 Aqara Smart Lock U200, Silver
- Fit depends on the existing cylinder or thumbturn geometry, so buyers should run Aqara's compatibility check before ordering.
What matters in practice
How to make the call
The useful difference
U200 is the retrofit option.
What the numbers change
Both support fingerprint and Apple Home Key.
The trade-off
U200 remote Matter use needs a Thread border router.
What this comparison cannot tell you
- Multipoint and mortise doors need separate fit checks.
- Platform features can change with firmware.
- No consumer lock removes the need for a sound door and strike.
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 “Replace my deadbolt”, “Unlock with a fingerprint”, and “Keep the lock outside unchanged”, 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 “Replace my deadbolt”, “Unlock with a fingerprint”, and “Keep the lock outside unchanged”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Aqara Smart Lock U100 |
|
| |
| Aqara Smart Lock U200, Silver |
|
|
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
Replace my deadbolt
See price & reviews on AmazonAqara Smart Lock U200, Silver
Keep the lock outside unchanged
See price & reviews on AmazonLinks open in a new tab.