Eufy Video Doorbell E340 Review: Dual-Cam, No Subscription

The Eufy Video Doorbell E340 is the answer to the question "is there a serious doorbell I can buy without paying a monthly fee?". Dual cameras (head height plus a downward-facing lens for package detection), local storage on the HomeBase 3, on-device AI for person and package recognition, and RTSP support for NAS integration — it's the most complete no-subscription package on the UK market in 2026. The catch is the HomeBase 3 dependency, which adds about £140 to the total cost if you're not already in the Eufy ecosystem.

The category has converged on a familiar template: 1080p or 2K camera at head height, optional cloud subscription for video history, app-based notifications, smart-home integration through Alexa or Google. The Eufy E340 breaks the template in three ways.

1. Dual cameras solve the porch-pirate problem

A single doorbell camera mounted at head height does fine for visitor identification but misses the actual interaction Amazon makes most worth recording — a courier leaving a parcel on the doormat. The E340's second downward-facing camera captures the package-drop zone directly. The cameras stream as separate views in the app and the AI on the HomeBase 3 can trigger distinct alerts for "person at door" vs "package detected" rather than firing a generic motion notification.

2. Genuinely no-subscription

Eufy's pitch has been the same for years and it's still genuinely true with the E340: every feature works without an active subscription. Local storage, AI detection, app notifications, multi-user access, video history, even cross-device viewing — none of it is locked behind a recurring fee. This is the single largest practical difference from Ring (Protect Basic at £4.99/mo per device for video history) or Nest (Aware at £6/mo per home for event history). Over a three-year ownership period, the subscription saving alone covers a HomeBase 3.

3. RTSP unlocks the prosumer path

The HomeBase 3 exposes an RTSP stream per connected camera, which means power users can integrate the E340 into Synology Surveillance Station, UniFi Protect (with an adapter), Frigate, BlueIris, or any other NVR that handles RTSP. For households that already run a NAS or a Home Assistant setup, this is the difference between a closed appliance and a component of an existing smart-home stack. For the cluster context, see UniFi Protect vs Ring vs Reolink, which covers RTSP-style integration in depth.

The E340 wires to a standard UK doorbell transformer rated at 8-24V AC. Most UK homes built or rewired since 2000 will have a compatible transformer; older properties may have an unfused 4-8V mechanical-chime transformer that won't drive the E340 reliably. The wireless / battery option exists with a separately-sold battery base but introduces a meaningful trade-off — battery mode disables continuous recording and limits some AI features to event-trigger mode.

For households where existing wiring isn't sufficient, the realistic options are: (a) electrician fits a compliant transformer, (b) battery base + accept reduced features, or (c) reconsider whether a wired doorbell is the right choice at all. The Reolink and Ring alternatives reviewed elsewhere on the site have their own UK-wiring considerations, all summarised in best video doorbells with no subscription.

The dual-camera setup changes the notification experience in a useful way: rather than getting a single "motion detected" alert that may be a delivery, a visitor, or a passing cat, the on-device AI tags events into discrete buckets. A "package detected" event jumps the queue when scanning recent activity; "familiar face recognised" suppresses the alert for household members. The categorisation isn't perfect — the package detector occasionally misses small letters and once-in-a-while misclassifies a bag of recycling — but the false-positive rate is materially lower than a single-sensor setup.

Battery doorbells in the rest of the category struggle with the trade-off between aggressive motion detection (good coverage, frequent false-positive alerts) and conservative detection (fewer alerts, occasional missed events). The E340's local AI processing on the HomeBase 3 reduces the trade-off — it can run continuous detection without the latency and battery cost a battery-only doorbell faces.

Out of the box, the E340 integrates cleanly with Alexa (video stream to Echo Show, doorbell-press announcements) and Google Home (Nest Hub stream support). Apple HomeKit Secure Video is the notable gap — Eufy has not added it for the E340 and the Matter integration that would bridge HomeKit support is on the roadmap rather than shipping. For users committed to Apple's ecosystem, this is a real consideration.

The RTSP stream is the bigger story for serious smart-home users. Pull the E340 into Home Assistant via the standard RTSP integration and you get full local control: motion automation, custom notification routing, multi-room camera dashboards, and historical archive on whatever NAS or storage you've chosen. This positions the E340 as a genuine component of a smart-home stack rather than a closed appliance, which is unusual at this price point.

The natural comparisons in 2026:

• Ring Doorbell Pro 2 — better headline brand recognition, similar 2K quality, but the £4.99/mo Protect Basic to unlock video history makes the three-year cost-of-ownership noticeably higher.
• Reolink Video Doorbell PoE — closer in spirit to the E340 (local storage, RTSP, no subscription) but single-camera and missing the dual-zone AI categorisation. Strong for households with existing PoE infrastructure.
• UniFi Protect G4 Doorbell Pro — for households already running a UniFi Dream Machine, this is arguably the best non-subscription doorbell on the market, but the UDM dependency takes the all-in cost above £400.
• Nest Doorbell (wired) — strong AI, polished app, but ties into the Google ecosystem and the £6/mo Aware subscription matters over time.

Aligns well for:

• Households that explicitly don't want a doorbell subscription and value local storage
• Existing Eufy users who already own a HomeBase 3 (the £140 dependency disappears)
• Smart-home enthusiasts who want RTSP integration into Home Assistant, Synology, or a UniFi-adjacent stack
• Households with consistent porch deliveries where the dual-camera coverage adds tangible value

Less suitable for:

• Apple-first households where HomeKit Secure Video matters
• Renters or installations where 8-24V AC transformer access isn't available
• Users who want a single-purchase, pure-cloud-app product without any hub or NAS exposure