eufy Security eufy Video Smart Lock or eufy Security Video Doorbell E340 Extra? Which eufy Security Model to Buy
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Comparing the eufy security eufy video smart lock vs video doorbell e340 extra helps you choose the right device for your entryway. Both products offer 2K video resolution and local storage without monthly fees. They also support Matter connectivity for smart home integration. The main difference lies in their function. The E40 is an all-in-one lock with facial recognition. The E340 is a dedicated doorbell with dual cameras and an extra battery.
Key differences
| Aspect | eufy Video Smart Lock E40 Facial Recognition | eufy E340 with Extra Battery and HomeBase S380 |
|---|---|---|
| Primary Function | Video Smart Lock with facial recognition | Video Doorbell with dual cameras |
| Camera Setup | Single 2K HD camera, 135° FOV | Dual cameras (front and downward facing) |
| Power Source | 15,000mAh battery, 800mAh backup | Battery powered, includes extra 6,500mAh pack |
| Access Method | Facial recognition, keyless entry | Not listed |
| Night Vision | Not listed | Dual-light system, up to 16 feet |
Which one should you choose?
Choose eufy Video Smart Lock E40 Facial Recognition if
- You need a keyless entry solution with facial recognition
- You want a single device that locks and records video
- You prefer local storage with built-in 32GB capacity
Choose eufy E340 with Extra Battery and HomeBase S380 if
- You want comprehensive coverage with dual cameras
- You need extra battery power for uninterrupted operation
- You require clear night vision up to 16 feet
Verdict: Choose the E40 if you prioritize secure, keyless entry combined with video monitoring. Select the E340 if you want dedicated doorbell functionality with enhanced camera coverage and extended battery life. Both models provide reliable 2K video and local storage without subscription fees.
Lock E40 vs Doorbell E340 Extra
Power Source
The eufy Video Smart Lock E40 uses a large 15,000mAh rechargeable lithium battery with an 800mAh backup. This setup supports up to six months of operation. The eufy Video Doorbell E340 Extra bundle includes an extra 6,500mAh quick-release battery pack. This dual-battery approach ensures uninterrupted use throughout the year. The E340 relies on battery power, while the E40 integrates a substantial internal cell with a backup. Both designs prioritize long-term reliability without constant charging, though the E40 specifies a six-month lifespan while the E340 emphasizes continuous operation through swapping.
Access Method
The eufy Video Smart Lock E40 features facial recognition unlocking. This provides a faster, keyless entry experience that works across a wide range of users. All facial data is stored locally for privacy. The eufy Video Doorbell E340 Extra does not offer locking or unlocking capabilities. It is designed solely for monitoring and communication. If you need to control entry without a physical key, the E40 is the only option here. The E340 serves as a visual and audio monitor only, requiring you to open the door manually.
Camera Coverage
The eufy Video Smart Lock E40 has a 2K HD camera with a 135-degree field of view. It provides head-to-toe coverage for monitoring visitors and deliveries. The eufy Video Doorbell E340 Extra uses dual cameras. The front-facing camera focuses on people, while the downward-facing camera captures the floor in front of your door. This dual setup offers comprehensive coverage from head to toe. The E40 provides a single wide-angle view. The E340 provides two distinct angles to ensure no detail is missed, particularly near the ground.
Night Vision
The eufy Video Doorbell E340 Extra features an industry-first dual-light system for color night vision. It includes an advanced light-capturing algorithm to reduce blur. You get a clear nighttime viewing distance of up to 16 feet. The eufy Video Smart Lock E40 mentions clear details day and night but does not specify a dual-light system or exact night vision range. The E340 explicitly highlights its superior night vision technology and clarity. If low-light performance is critical, the E340 offers documented advantages in color night vision capabilities.
Motion Detection
The eufy Video Smart Lock E40 uses a 60 GHz radar for high-precision motion detection. This radar accurately detects human motion while filtering out pets, small objects, and wind. This reduces false alerts and extends battery life. The eufy Video Doorbell E340 Extra does not list specific motion detection technology in the provided data. It relies on standard doorbell triggering. The E40’s radar technology offers a more advanced approach to distinguishing between relevant and irrelevant motion. This helps you receive only the alerts that matter for security.
Storage Type
The eufy Video Smart Lock E40 includes built-in 32GB local storage. You can keep footage stored locally with no monthly subscription required. The eufy Video Doorbell E340 Extra supports local storage without subscription fees. It can pair with HomeBase S380 or other compatible hubs for storage. The E40 has dedicated internal storage. The E340 requires a compatible hub for local storage. Both options avoid monthly fees. However, the E40 provides immediate, built-in storage capacity. The E340 relies on external storage solutions for its local recording features.
Smart Home Compatibility
Both devices support Matter connectivity for smart home integration. The eufy Video Smart Lock E40 works with Apple Home, Google Home, Alexa, and SmartThings. Camera streams are not supported via Matter on the E40. The eufy Video Doorbell E340 Extra connects with Alexa devices and Google Voice Assistant devices. It also pairs with eufy HomeBase S380 and compatible chimes. Both offer broad compatibility. The E40 explicitly lists SmartThings support. The E340 emphasizes chime integration. Both ensure you can view feeds and receive alerts through major smart home ecosystems.
Which eufy Model Fits Your Entryway
Users wanting facial recognition keyless entry
The eufy Video Smart Lock E40 uses facial recognition for effortless unlocking. It stores all facial data locally for privacy. This all-in-one device combines a 2K HD camera, doorbell, and smart lock. The 135-degree head-to-toe view covers visitors fully. You get fast, natural keyless entry for your whole family without needing keys.
Buyers needing dual-camera floor coverage
The eufy Video Doorbell E340 Extra features dual cameras for comprehensive security. The front camera focuses on people, while the downward camera captures the floor. This setup ensures you see packages and visitors clearly. The bundle includes an extra 6,500mAh battery for uninterrupted operation throughout the year.
Those prioritizing color night vision clarity
The eufy Video Doorbell E340 Extra offers industry-first dual-light color night vision. It provides a clear view up to 16 feet with less blur. The 2K clarity reveals details of anyone visiting your home. This bundle ensures you see clearly day or night without missing important doorstep activity.
The products compared
eufy Video Smart Lock E40 Facial Recognition
Best for: Integrated video locking and local storage needs
- Video Resolution
- 2K
- Power Source
- 15,000mAh battery, 800mAh backup
- Field of View
- 135°
- Storage Type
- 32GB local storage
- Connectivity
- Matter
- Color
- Black
View on Amazon: eufy Video Smart Lock E40 Facial Recognition Affiliate link
The eufy Security Video Smart Lock E40 combines a 2K HD camera, doorbell, and smart lock into one unit. It uses facial recognition for keyless entry and stores data locally on 32GB of built-in storage. A 15,000mAh battery provides up to 6 months of use, supported by an 800mAh backup. The 135° field of view covers visitors from head to toe. It supports Matter for integration with major smart home platforms.
Pros
- 2K HD camera with 135° head-to-toe field of view
- Facial recognition unlocking with local data storage
- 15,000mAh battery with 800mAh backup power supply
- 32GB local storage with no monthly fees
- Matter support for Apple Home, Google Home, and Alexa
Cons
- Camera streams are not supported via Matter
- Not compatible with round or non-standard faceplates
- No mention of remote access without the eufy app
Good fit if
- You want a single device for locking and monitoring
- You prefer local storage without subscription fees
- You use Matter-compatible smart home ecosystems
Skip if
- You have a round or non-standard deadbolt
- You need camera streaming through Matter protocols
- You require remote access without the eufy app
Verdict: The eufy Security Video Smart Lock E40 suits homeowners who want integrated locking and 2K video monitoring with local privacy. It fits those who value facial recognition and Matter connectivity over standalone doorbell features.
eufy E340 with Extra Battery and HomeBase S380
Best for: comprehensive dual-angle monitoring and backup power
- Video Resolution
- 2K Full HD
- Power Source
- Battery
- Storage Type
- Local (HomeBase)
- Night Vision
- Color night vision
- Indoor Receiver
- HomeBase S380
View on Amazon: eufy E340 with Extra Battery and HomeBase S380 Affiliate link
The eufy E340 uses dual cameras to capture both visitor faces and the floor area. It records in 2K resolution for clear details. The bundle includes an extra 6,500 mAh battery for backup power. It offers color night vision up to 16 feet. Local storage is available without subscription fees. This model suits you if you want comprehensive coverage and extended battery life.
Pros
- Dual cameras cover faces and the ground.
- 2K resolution reveals visitor details.
- Includes extra 6,500 mAh backup battery.
- Color night vision reaches 16 feet.
Cons
- Not compatible with original eufy Wi-Fi Chime.
- Not compatible with eufy Chime models T8740 or T8742.
- Requires compatible HomeBase or chime for alerts.
Good fit if
- You want to see both visitors and packages on the ground.
- You prefer local storage without monthly fees.
- You need backup power for uninterrupted use.
Skip if
- You only have the original eufy Wi-Fi Chime.
- You have eufy Chime T8740 or T8742.
- You want a single-camera design.
Verdict: eufy E340 Video Doorbell with Extra Battery provides dual-angle coverage and backup power. It fits you if you need detailed 2K video and local data storage.
Specifications side by side
| Spec | eufy Video Smart Lock E40 Facial Recognition | eufy E340 with Extra Battery and HomeBase S380 |
|---|---|---|
| Video Resolution | 2K | 2K Full HD |
| Power Source | 15,000mAh battery, 800mAh backup | Battery |
| Field of View | 135° | not stated |
| Storage Type | 32GB local storage | Local (HomeBase) |
| Night Vision | not stated | Color night vision |
| Connectivity | Matter | not stated |
| Indoor Receiver | not stated | HomeBase S380 |
| Resolution | 2K | 2K |
| Color | Black | not stated |
| Application | Front Door | not stated |
| Dimensions | 2.99 × 1.27 × 8.03 inches | not stated |
| Model | T85M0 | not stated |
Frequently asked questions
Does the eufy Video Smart Lock E40 have a camera?
Yes, it includes a 2K HD camera. This allows you to see visitors directly from the lock itself. The device combines a smart lock, doorbell, and camera into one unit. You get video monitoring without needing a separate doorbell device. The camera supports facial recognition for secure access.
What is the difference between the E40 and E340 Extra?
The E40 is an integrated smart lock with facial recognition. The E340 Extra is a standalone video doorbell with dual-angle monitoring. The E40 focuses on keyless entry and local privacy. The E340 bundle provides a HomeBase S380 and an extra battery for backup power. Choose based on whether you need locking or just viewing.
Does the eufy Video Smart Lock E40 support Matter?
Yes, the E40 supports Matter connectivity. This allows it to integrate with your existing smart home ecosystem. You can control the lock and view video through compatible platforms. The device offers local storage for privacy. It is designed for homeowners who want integrated locking and monitoring.
Is the E340 Extra battery powered?
Yes, the E340 Extra is battery powered. The bundle includes an extra 6,500mAh battery for extended use. It also comes with a HomeBase S380 for local data storage. The device provides dual-angle coverage with 2K resolution. You get detailed video without monthly fees.
Can the E40 unlock without a key?
Yes, the E40 uses facial recognition for keyless entry. It stores all facial data locally for privacy. You can unlock the door effortlessly using your face. The device combines a 2K HD camera and doorbell. It is ideal for users who want integrated locking and video monitoring.
Does the E340 Extra need a subscription?
No, the E340 Extra does not require a subscription. It supports local data storage via the included HomeBase S380. You get 2K video resolution without monthly fees. The bundle includes an extra battery for backup power. This setup fits users who need detailed monitoring and privacy.