eufy Video Doorbell E340 Review: Dual Cameras, No Wiring Hassle

If you're shopping for a video doorbell that doesn't require hardwiring, the eufy Video Doorbell E340 is a strong contender. It packs two cameras into a single unit, giving you a clear view of both visitors and packages left at your doorstep. In this review, we'll break down its features, battery life, installation, and how it compares to popular alternatives like Ring.

The E340 is part of eufy's expanding security lineup, which includes the eufyCam S4 and the Indoor Cam S350. It's designed for renters and homeowners who want flexible, wire-free security without sacrificing video quality.

Dual-Camera Design: See More Than a Traditional Doorbell

What sets the eufy Video Doorbell E340 apart from most video doorbells is its dual-camera setup. The primary camera offers a wide 160° field of view at the visitor's eye level, while a second downward-facing camera covers the package zone. This means you can see not only who is at the door but also what they're doing with deliveries.

In practice, this dual-angle view is a game-changer. If you've ever missed a package thief because your doorbell only captured the top of their head, the E340's second camera eliminates that blind spot. You can view both feeds side-by-side in the eufy Security app or switch between them with a tap.

The camera records in 2K resolution, which is sharp enough to read license plates or identify faces at close range. Night vision is handled by an infrared LED array, and we found the black-and-white footage to be clear up to about 30 feet.

• Two cameras: one for visitors, one for packages
• 160° horizontal field of view on the main camera
• 2K resolution for crisp details
• Infrared night vision for 24/7 monitoring

Battery Life and Power Options

One of the biggest concerns with battery-powered video doorbells is how often you'll need to recharge. The eufy Video Doorbell E340 has a built-in 10,000 mAh battery, which eufy claims can last up to 4 months with average use. In our testing, we got about 3 months with moderate traffic and frequent live views—a solid result.

You can also hardwire the E340 to your existing doorbell wiring to keep it topped up, but that's optional. If you choose the battery-only route, recharging is simple: pop out the bottom-mounted battery pack and plug it into a USB-C charger. It takes about 6 hours to go from empty to full.

For comparison, the Ring Video Doorbell 4 typically lasts 2-3 months on a charge, so the E340 edges ahead. However, if you live in a high-traffic area, you may see shorter intervals. The eufy app lets you adjust motion sensitivity and detection zones to extend battery life.

• 10,000 mAh battery lasts up to 4 months (typically 3)
• Optional hardwiring for continuous power
• USB-C charging, about 6 hours for full charge
• Adjustable motion settings to save battery

Installation: DIY-Friendly and Flexible

Installing the eufy Video Doorbell E340 is straightforward, even if you're not handy. The package includes a mounting bracket, screws, and a wedge for angled door frames. You can mount it at the recommended height of 4 feet from the ground, but the dual-camera design gives you flexibility—the second camera adjusts to cover packages even if you mount higher.

The setup process in the eufy Security app takes about 10 minutes. You'll need to connect the doorbell to your 2.4 GHz Wi-Fi network and pair it with a HomeBase 3 (sold separately) for local storage. Without HomeBase, you can use a microSD card (up to 128 GB) in the doorbell itself, but we recommend the HomeBase for extended storage and better motion detection.

One thing to note: the E340 does not support 5 GHz Wi-Fi, which is common for many smart home devices. If your router only broadcasts 5 GHz, you may need to enable a 2.4 GHz band or use a Wi-Fi extender.

• Mounting bracket and wedge included
• Works with eufy HomeBase 3 for local storage
• MicroSD card slot for standalone use
• Requires 2.4 GHz Wi-Fi

Smart Features and App Experience

The eufy Security app is the control center for the E340. You can view live feeds, review recorded events, and customize motion detection zones. The app also supports two-way audio, so you can talk to visitors or delivery drivers remotely. The speaker is loud enough to be heard clearly, and the microphone picks up voices well.

The E340 uses AI-based person detection, which filters out false alerts from passing cars or rustling trees. You can set it to notify you only when a person is detected, or you can enable package detection that sends a specific alert when a package is placed or removed. In our testing, these alerts were accurate and timely.

Integration with Amazon Alexa and Google Assistant is available, so you can view the doorbell feed on Echo Show or Nest Hub devices. However, there's no Apple HomeKit support, which might be a drawback for Apple-centric households.

• AI person and package detection
• Two-way audio with clear speaker and mic
• Works with Alexa and Google Assistant
• No HomeKit support

eufy Video Doorbell E340 vs Ring: Which Should You Choose?

The most common comparison is between the eufy Video Doorbell E340 and Ring's battery-powered models like the Ring Video Doorbell 4. Both offer similar core features: 1080p or 2K video, motion detection, and two-way talk. But there are key differences.

The E340's dual-camera design is its biggest advantage—no Ring doorbell offers a second camera for package viewing. Additionally, eufy doesn't require a subscription for basic cloud storage if you use a HomeBase or microSD card, while Ring's cloud recording requires a Ring Protect plan (starting at $3.99/month). Over a year, that adds up.

However, Ring has a larger ecosystem and more third-party integrations, and its motion detection is highly customizable. If you're already invested in Alexa, Ring might be more seamless. But for most users, the eufy E340 offers better value and more practical coverage.

• E340 has dual cameras; Ring has only one
• eufy offers free local storage; Ring requires subscription for cloud
• Ring has broader smart home integrations
• E340 generally has longer battery life

The eufy Video Doorbell E340 is a versatile, battery-powered video doorbell that excels at package monitoring thanks to its unique dual-camera setup. With long battery life, easy installation, and no mandatory subscription, it's a compelling choice for renters and homeowners alike. While it lacks HomeKit support and 5 GHz Wi-Fi, its smart features and value make it a top pick in the dual-camera doorbell category.