eufy Security eufy Video Smart Lock vs eufy Security eufy Dual Camera Video Doorbell: Spec Comparison
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This guide compares the eufy security video smart lock e40 vs video doorbell e340. Both devices use 2K resolution for clear footage and offer local storage without monthly fees. The main difference lies in their function. The E40 is a smart lock with facial recognition and a built-in battery. The E340 is a dual-camera doorbell with color night vision and wired or battery power options. You choose based on whether you need entry control or broader monitoring.
Key differences
| Aspect | eufy Video Smart Lock E40 Facial Recognition | eufy Dual Camera Video Doorbell with HomeBase |
|---|---|---|
| Power Source | 15,000mAh rechargeable battery with 800mAh backup | Wired or battery powered |
| Storage Capacity | 32GB built-in local storage | 16GB built-in, expandable up to 16TB |
| Camera System | Single 2K camera with 135° field of view | Dual cameras for head-to-toe view and floor coverage |
| Night Vision | Standard night vision | Color night vision with dual-light system |
| Smart Home Connectivity | Matter, Apple Home, Google Home, Alexa, SmartThings | Not listed |
| Access Method | Facial recognition unlocking | Not listed |
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 standalone battery-powered device with no wiring.
- You require Matter compatibility for broader smart home integration.
Choose eufy Dual Camera Video Doorbell with HomeBase if
- You want to see the entire person and the ground in front of your door.
- You prefer color night vision for clearer evening footage.
- You want expandable local storage up to 16TB.
Verdict: Choose the E40 if you prioritize secure, keyless entry and a single, self-contained battery device. Pick the E340 if you need comprehensive visual coverage of your doorstep with advanced night vision and flexible power options. Both provide 2K clarity and local storage.
Spec Comparison: Lock Versus Doorbell
Access method
The eufy Video Smart Lock E40 integrates a smart lock mechanism with facial recognition. This allows you to unlock your door using your face, providing a keyless entry experience that works for various users. The eufy Dual Camera Video Doorbell E340 does not include locking hardware. It focuses solely on visual monitoring and alerting you to visitors. If your primary goal is to secure your entry point by locking and unlocking it remotely or automatically, the E40 is the functional choice. The E340 serves as a surveillance tool rather than a physical barrier controller.
Power source
The E40 relies on a substantial 15,000mAh rechargeable lithium battery for primary power. It also includes an 800mAh built-in backup battery that activates automatically when the main power is low. This dual-battery system ensures uninterrupted operation for up to six months. The E340 offers more flexibility with a wired or battery power option. You can choose to hardwire it for constant power or use batteries for easier placement. While the E40 provides a specific high-capacity battery solution, the E340 allows you to select the power method that best fits your existing doorbell wiring setup.
Storage type
Both devices prioritize local storage to avoid monthly subscription fees, but the capacity differs significantly. The E40 comes with 32GB of built-in local storage for your video footage. The E340 includes 16GB of built-in storage, which is expandable up to 16TB using a microSD card or compatible hub. This expansion capability allows the E340 to hold vastly more video history over time. If you need extensive long-term recording without cloud costs, the E340 offers superior scalability. The E40 provides a fixed amount of space that may fill up faster depending on your usage.
Smart home compatibility
The E40 supports Matter connectivity, allowing it to integrate with Apple Home, Google Home, Alexa, and SmartThings. This ensures smooth, secure connections with major smart home ecosystems. However, camera streams are not supported via Matter due to current limitations. The E340 is designed to work with the eufy Ecosystem and HomeBase 3 for advanced AI features. While both support eufy’s native app, the E40 offers broader third-party smart home integration through Matter. If you use multiple smart home platforms beyond the eufy app, the E40 provides more versatile connectivity options.
Motion detection
The E40 features a 60 GHz radar sensor designed to detect human motion with high precision. This technology filters out pets, small objects, and wind interference to reduce false alerts. The E340 utilizes BionicMind AI, which includes self-learning capabilities to improve accuracy to 99.9% and auto-categorize security reports. While both devices aim to minimize unnecessary notifications, the E40 uses dedicated radar hardware for physical detection. The E340 relies on AI processing for smart categorization. If you want hardware-based filtering to extend battery life, the E40’s radar is a distinct advantage.
Choose the right eufy device for your needs
You want keyless entry and local facial data storage
The E40 integrates a smart lock with 2K HD camera and 135-degree field of view. It uses facial recognition for unlock access while storing all data locally on 32GB built-in storage. You get a 15,000mAh battery with 800mAh backup for up to six months of operation. It supports Matter for smart home integration without monthly fees.
You need head-to-toe video coverage of your doorstep
The E340 features dual cameras for a complete head-to-toe view of visitors and packages. It offers 2K Full HD clarity and color night vision for clear footage up to 16 feet away. You can expand local storage up to 16TB. The device supports both wired and battery power options for flexible installation near your front door.
You prefer flexible power options and expandable storage
This doorbell allows you to choose between wired or battery power sources. It provides 2K Full HD video resolution and color night vision for better low-light performance. You can store recordings locally with expandable capacity up to 16TB. The dual camera system ensures you see the ground level and faces clearly without missing details at your entrance.
The products compared
eufy Video Smart Lock E40 Facial Recognition
Best for: integrated locking and 2K monitoring
- 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, storing all data locally on 32GB of built-in storage. The 135° field of view captures full-body details. It runs on a 15,000mAh battery with an 800mAh backup. This all-in-one device suits users who want integrated security without monthly fees.
Pros
- 2K HD video resolution for clear details
- Facial recognition unlocking for keyless entry
- 32GB local storage with no monthly fee
- 135° head-to-toe field of view
- 15,000mAh battery with 800mAh backup
Cons
- Camera streams are not supported via Matter
- Requires eufy app for full features
- Not compatible with round or non-standard faceplates
Good fit if
- You want a single device for locking and viewing
- You prefer local storage over cloud subscriptions
- You need facial recognition for quick access
Skip if
- You require Matter video streaming support
- You have a non-standard deadbolt faceplate
- You want to avoid using the eufy app
Verdict: The eufy Security Video Smart Lock E40 fits homeowners who want a single, privacy-focused device for locking and monitoring. It is ideal for those who value local storage and facial recognition over Matter video compatibility.
eufy Dual Camera Video Doorbell with HomeBase
Best for: complete head-to-toe doorstep monitoring
- Video Resolution
- 2K Full HD
- Power Source
- Wired/Battery Power
- Storage Type
- Local Expandable Storage up to 16TB
- Night Vision
- Color Night Vision
View on Amazon: eufy Dual Camera Video Doorbell with HomeBase Affiliate link
The eufy E340 uses two cameras to capture a head-to-toe view of your doorstep. It records in 2K Full HD clarity. You get color night vision with a clear view up to 16 feet. The device supports wired or battery power. It stores video locally on up to 16TB of expandable storage. This setup suits you if you want detailed footage without monthly fees.
Pros
- Dual cameras provide a complete head-to-toe view.
- 2K Full HD resolution reveals fine details.
- Color night vision works up to 16 feet.
- Local storage expands up to 16TB with no monthly fee.
Cons
- Requires HomeBase 3 for full functionality.
- Dual camera setup may have blind spots between lenses.
- Facial recognition relies on cloud thumbnail previews.
Good fit if
- You want a complete view of visitors and packages.
- You prefer local storage over cloud subscriptions.
- You need clear night vision for security.
Skip if
- You only have battery power available.
- You already own a HomeBase 3.
- You need a single camera for a tight space.
Verdict: The eufy E340 Dual Camera Video Doorbell is ideal for homeowners who need a detailed, head-to-toe view of their entrance. It fits you best if you want high-resolution footage and local storage without ongoing costs.
Specifications side by side
| Spec | eufy Video Smart Lock E40 Facial Recognition | eufy Dual Camera Video Doorbell with HomeBase |
|---|---|---|
| Video Resolution | 2K | 2K Full HD |
| Power Source | 15,000mAh battery, 800mAh backup | Wired/Battery Power |
| Field of View | 135° | not stated |
| Storage Type | 32GB local storage | Local Expandable Storage up to 16TB |
| Night Vision | not stated | Color Night Vision |
| Connectivity | Matter | not stated |
| 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
Can I use facial recognition on the eufy Video Smart Lock E40?
Yes, the E40 includes facial recognition technology. This feature allows you to unlock your front door without a key or app. It provides a hands-free entry experience. The device stores facial data locally for privacy. This makes it a secure option for homeowners who want quick access.
Does the eufy Dual Camera Video Doorbell E340 have color night vision?
Yes, the E340 features color night vision. This allows you to see clear, colored footage even in low-light conditions. It helps identify visitors or packages at night. The dual-camera setup captures both face and package details. This ensures you do not miss important events after dark.
What is the resolution of the eufy Video Smart Lock E40?
The E40 records video in 2K resolution. This high clarity helps you see faces and details accurately. The camera is integrated into the lock mechanism. You get a 135-degree field of view. This wide angle covers the entire door area effectively.
How does the eufy Dual Camera Video Doorbell E340 store footage?
The E340 uses local storage via the HomeBase. You do not need a monthly subscription to save videos. The HomeBase keeps your footage safe and private. You can access recordings directly from the base unit. This setup avoids ongoing cloud fees.
Is the eufy Video Smart Lock E40 battery or wired?
The E40 is designed for front door installation. Specific power source details are not listed in the current specifications. It functions as an integrated smart lock. You should check the installation manual for power requirements. It combines locking and monitoring in one unit.
Can I see packages with the eufy Dual Camera Video Doorbell?
Yes, the E340 captures head-to-toe views. The dual-camera system records both faces and packages. One camera focuses on the visitor, while the other monitors the ground. This ensures you see who delivered items. It is ideal for tracking porch deliveries.
What colors are available for the eufy Video Smart Lock E40?
The E40 is available in Black. This color matches most standard door frames. It provides a sleek, modern look. The finish is durable for outdoor use. Check the product page for other available finishes if needed.