What is the eufy E340 like to design and set up?
The E340 looks like most modern video doorbells from the front — a tall, narrow unit with a single button — but the giveaway is the second lens sitting below the main camera, angled down at the step rather than out at eye level. eufy sells it as either the battery pack version or a wired unit that draws power from your existing bell wiring while keeping the battery topped up, so it works whether or not you already have a transformer and chime wired in. Setup follows the same pattern as eufy's other doorbells and cameras: pair it in the eufy Security app, mount the included bracket (with an angled wedge in the box for doorways where the doorbell would otherwise point straight at a wall), and pair the included chime unit if you want an indoor alert beyond your phone.
The box also includes a screwdriver, wall plugs and a spirit-level sticker for the bracket, which matters more than it sounds — the downward camera's usefulness depends on the unit being mounted level and at the recommended height, otherwise the doorstep view clips the parcel's edge rather than showing the whole delivery. If your existing doorbell wiring is very old or your porch light shares a circuit with the bell, eufy's own installation notes recommend testing chime compatibility before removing your old unit; see our broader guide to hardwiring a eufy doorbell in the UK for transformer and chime-bypass specifics that apply to the E340 as well as eufy's other wired models.
Is the eufy E340's dual camera actually useful?
Yes — it's the E340's single best feature. The secondary, downward-facing 1080p lens is specifically there to catch what a standard eye-level doorbell camera misses: a parcel left on the doorstep, someone crouching down, or a delivery driver walking away after dropping a box. eufy calls this Delivery Guard, and reviewers testing the doorbell have consistently rated the second view as more useful in practice than marketing photos suggest, since a single eye-level camera on a typical UK porch often can't see the ground directly below the door at all. There is a limit worth knowing before you buy: Expert Reviews' testing found the package-detection AI reliably flags boxes of roughly 10 inches per side or larger, so very small padded envelopes and slim letterbox-sized parcels are less consistently picked out by the automatic "package detected" alert, even though the footage itself still records them.
How fast are the eufy E340's motion alerts?
Slower than most direct rivals. Independent lab testing by Expert Reviews clocked the E340's average alert-to-notification time at 11.5 seconds, compared with 5.1 seconds for the TP-Link Tapo D230S1 and around 2.4 seconds for the Ring Video Doorbell Plus. That gap matters if you're relying on the doorbell to catch a face before someone leaves the step — for parcel logging and general record-keeping it's less of an issue, since the clip is still captured and stored either way, just not pushed to your phone as quickly.
Does the eufy E340 work with Home Assistant?
Partly, and only through a community integration rather than an official one. There's no native Home Assistant integration for eufy Security devices; instead, the HACS-installed eufy_security custom integration (built on the eufy-security-client library) pairs with a separate Eufy Security add-on and a go2rtc add-on to expose entities, motion events and live video inside Home Assistant. Streaming can run locally over RTSP on devices that support it, but P2P-based streaming (which some doorbell models fall back to) is less reliable than a native RTSP feed, and specific model support varies — check the integration's known-working-devices list before buying if HA integration is your main reason for choosing this doorbell over a native Matter or Ring-style option. Compare this against our wider eufy camera guide for how the E340 fits into eufy's broader HomeBase ecosystem.
How does the eufy E340 compare to Ring and TP-Link?
The core trade-off is speed versus cost and storage freedom. Ring's Video Doorbell Plus responds to motion far faster in testing and has deeper Alexa integration, but Ring's best features — cloud recording, person alerts, and access to stored footage — sit behind a Ring Protect subscription, which we cover in detail in our Ring doorbell subscription cost guide. TP-Link's Tapo D230S1 also beats the E340 on alert speed and is cheaper, but lacks the E340's second downward camera. If you already own other eufy cameras, our Ring vs eufy doorbell comparison goes through the full subscription-versus-local-storage argument in more depth, and our best eufy security camera roundup covers where the E340 sits against eufy's standalone cameras. If you're weighing whether to pay for Ring's ecosystem at all, our is the Ring doorbell worth it in the UK guide lays out what you get for the subscription fee that the E340 avoids entirely.
Who should buy the eufy E340?
Anyone who gets frequent deliveries and wants proof of a parcel's exact condition and position on the step, without paying a monthly video-storage fee, is the target buyer. It also suits households that already use a eufy HomeBase and want one app across doorbell and cameras, and renters who need a battery-only doorbell that doesn't require touching existing wiring. It's a weaker pick if you need the fastest possible alert for security reasons, if you're an Apple Home user (there's no HomeKit support at all), or if reliable Home Assistant integration out of the box is a hard requirement rather than something you're willing to set up via HACS. Anyone on a strict 2.4GHz-only home network should also double-check their router's band settings before buying, since the E340 has no 5GHz fallback if your Wi-Fi is congested.
Verdict
The eufy Video Doorbell E340 earns its recommendation on value: a genuinely useful second camera, 90 days of free local storage, and flexible wired-or-battery power, all for less than most subscription-locked rivals cost before you even add a monthly plan. The one real compromise is speed — if you need alerts within a couple of seconds of someone approaching, look at Ring or TP-Link instead. For everyone else prioritising parcel visibility and no recurring fees, the E340 is the doorbell to buy.
