eufy Security Video Doorbell E340 with HomeBase 3: features and specs

The eufy Security Video Doorbell E340 is a doorbell with two cameras, sold in a kit with the HomeBase S380 (HomeBase 3) hub. It films the visitor and the doorstep, and stores recordings on local storage rather than only in the cloud. This page explains what its main features mean.

Two cameras for a fuller view

Most video doorbells have a single forward-facing camera. The E340 adds a second, downward-facing one. According to eufy, the front camera focuses on people, while the lower camera fills in the gap with a view of the floor in front of the door, which is where parcels are usually left. Two views mean you can see both a visitor's face and a package at the same time.

2K video

The doorbell records in 2K resolution, which is sharper than 1080p Full HD. In general, extra resolution helps when you zoom in on a face, a delivery label or a number plate, though results also depend on lighting and your connection.

Colour night vision

eufy describes the E340 as the first to use a dual-light system with a light-capturing and processing algorithm, giving less blur than its earlier night vision. The brand quotes a clear nighttime viewing distance of up to 16 feet (5 metres). Doorstep views are usually short-range, so that distance is typically enough for the area around a door.

Local storage and the HomeBase hub

The kit includes the HomeBase 3, a hub that stores footage locally. eufy says it provides 16GB of built-in storage, expandable up to 16TB, and that recordings can be saved locally without a subscription. Two notes from the listing: push notifications with thumbnail previews need the preview images to be temporarily stored in the cloud, and the operating system takes up part of the built-in capacity. Local storage also means the hub should sit somewhere safe and powered.

BionicMind AI

The brand's BionicMind system provides facial recognition that filters alerts, and self-learning AI that eufy says improves accuracy to 99.9%. It also builds categorised security reports. Accuracy claims like this come from the brand and will vary with lighting, angle and distance. Facial recognition features may be subject to privacy rules where you live, so check local requirements.

Who it suits

It suits households that want a clear view of both visitors and deliveries, prefer to keep recordings on a device they own, and are happy to run a hub alongside the doorbell. Apartment owners and renters should check building rules before fitting anything to a door or frame.

What to check before you buy

• Power and wiring: the listing doesn't say how the doorbell is powered, so confirm this and whether your existing doorbell wiring suits it.
• Hub placement: the HomeBase needs mains power and a network connection.
• Mounting and angle: check that your doorway allows the downward camera to see the floor.
• Storage: decide whether the built-in 16GB is enough or you want to expand it.
• Privacy: consider your neighbours and local rules on recording and facial recognition.
• Chime: check how the doorbell will announce visitors inside.

The short version

• A dual-camera video doorbell sold with the HomeBase S380 (HomeBase 3).
• 2K video and colour night vision up to about 16 feet.
• 16GB of local storage in the hub, expandable to 16TB, with no subscription needed for local recording.
• BionicMind facial recognition and categorised reports.
• Thumbnail notification previews use temporary cloud storage.

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