Comparison
eufy FamiLock E34 vs Aqara U200: Which Smart Lock Is Better?
A detailed comparison of the eufy FamiLock E34 and Aqara U200, covering unlocking methods, Matter, Apple Home Key, battery, installation, security, and value.
Product
eufy FamiLock E34
Rated 4.1/5
Product
Aqara Smart Lock U200
Rated 4.4/5
eufy FamiLock E34 vs Aqara U200: Which Smart Lock Is Better?
The eufy FamiLock E34 and Aqara U200 are two premium smart locks with Matter support, but they take very different approaches to keyless entry.
The E34 focuses on palm-vein recognition, while the U200 emphasizes flexibility with fingerprint access, NFC, Apple Home Key, passcodes, and a retrofit-oriented design.
Quick Verdict
Choose the eufy FamiLock E34 if palm-vein unlocking and battery redundancy are your priorities.
Choose the Aqara U200 if you want Apple Home Key, fingerprint access, NFC, retrofit installation, and stronger value.
For most Apple Home households, the U200 is the better fit.
For buyers specifically interested in palm-vein recognition, the E34 is the more distinctive choice.
At a Glance
| Feature | eufy FamiLock E34 | Aqara U200 |
|---|---|---|
| Palm-vein recognition | Yes | No |
| Fingerprint | No | Yes |
| PIN/passcode | Yes | Yes |
| Apple Home Key | No | Yes |
| NFC | No | Yes |
| Physical key | Yes | Yes |
| Matter | Yes | Yes |
| Thread | Yes | Yes |
| Built-in Wi-Fi | Yes | No |
| Retrofit design | No | Yes |
| Door-state detection | No dedicated sensor | Gyroscope-based |
| Main strength | Palm-vein access | Ecosystem flexibility |
Unlocking Methods
The biggest difference between these locks is how they handle entry.
The E34’s defining feature is palm-vein recognition.
The U200 offers a broader collection of authentication methods, including fingerprint recognition, NFC, passcodes, Apple Home Key, app access, and a physical key.
Winner: Aqara U200
The U200 offers more choices.
The E34 wins if you specifically want palm-vein recognition.
Palm-Vein Recognition
Palm-vein recognition is the E34’s headline feature.
eufy claims recognition can occur in approximately 0.6 seconds and supports up to 50 palm-vein users.
This creates a contactless unlocking experience that differs from fingerprint-based locks.
However, those performance figures are manufacturer claims. They should not be treated as independent Spoky Curates test results.
Winner: eufy E34
If palm-vein recognition is your priority, there is no real contest.
Apple Home Key
This is one of the biggest reasons to consider the Aqara U200.
The E34 supports Apple Home through Matter, but it does not support Apple Home Key.
The U200 does support Apple Home Key.
For iPhone and Apple Watch users who want tap-based smart-lock entry, this is a major advantage.
Winner: Aqara U200
Matter
Both locks support Matter over Thread.
The E34 additionally includes built-in Wi-Fi for eufy’s own ecosystem.
Third-party Matter functionality can depend on the Matter controller and Thread infrastructure already present in your smart home.
Winner: Tie
Both are strong Matter choices, although their implementation differs.
Battery
The E34 uses a 10,000mAh rechargeable main battery and a 750mAh integrated backup battery.
eufy claims up to eight months of operation under its stated conditions.
The dual-battery design is one of the E34’s strongest practical features.
Winner: eufy E34
The E34 has the more impressive headline battery configuration.
Installation
The E34 is designed as a smart deadbolt replacement for compatible doors.
The U200 takes a retrofit-oriented approach and can preserve more of an existing lock configuration.
For renters and homeowners who prefer not to replace the complete deadbolt assembly, the U200 can therefore be more attractive.
Compatibility still needs to be checked before purchase.
Winner: Aqara U200
Door-State Detection
The E34 does not include a dedicated door-position sensor.
The U200 uses its internal sensing system to determine door state and support automatic locking.
This is useful because a timed auto-lock and a lock that knows whether the door is actually closed are not the same thing.
Winner: Aqara U200
Price and Value
The price difference is significant.
At the time of our research, eufy lists the E34 at $279.99 in the United States, while Aqara lists the U200 at $169.99.
Prices can change, so shoppers should verify the current price before purchasing.
The E34 therefore needs to justify its premium through palm-vein access, built-in Wi-Fi, and its battery system.
Winner: Aqara U200
Which Smart Lock Should You Buy?
Buy the eufy FamiLock E34 if:
- You specifically want palm-vein recognition.
- You prefer contactless biometric entry.
- Battery redundancy is important.
- You want built-in Wi-Fi.
- You already use eufy’s ecosystem.
Buy the Aqara U200 if:
- You use Apple Home.
- Apple Home Key matters to you.
- You want fingerprint access.
- You want NFC.
- You prefer retrofit installation.
- You want stronger value.
Final Verdict
The Aqara U200 wins this comparison for most buyers.
It offers a broader range of unlocking methods, Apple Home Key, Matter over Thread, retrofit installation, and a significantly lower current US list price.
The eufy FamiLock E34 is the more specialized product.
Its palm-vein recognition is genuinely distinctive, and its large battery plus integrated backup battery make it particularly interesting for families and smart-home enthusiasts.
Overall Winner
Aqara U200
Best for Palm-Vein Unlocking
eufy FamiLock E34
Best for Apple Home
Aqara U200
Best Value
Aqara U200
The E34 is worth choosing when its unique palm-vein experience is the reason you are shopping for a smart lock in the first place.