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eufy E340

By eufy · Video Doorbells · Cleaning & Smart Home · More from eufy

  • 2K (2048x1536) main camera, 1600x1200 bottom camera
  • Color night vision up to 16ft (5m)
  • Battery or hardwired power (8-24V, >10VA)
  • IP65 weather-resistant
  • Built-in 8GB local storage, no subscription required

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Summary

A dual-camera, battery-or-hardwired video doorbell for homes that get a lot of deliveries and want local storage without a subscription. The one thing to check first: owners report far shorter battery life than the advertised figure, including hardwired units that still drain.

Strengths

  • A second, downward-facing camera records the package drop zone, not just faces.
  • Smart alerts, face recognition and package features run with no paid plan.
  • 8 GB of local storage is built into the device.
  • Independent testers rate the image quality among the strongest they tested.
  • The battery pack is removable, so a spare can be swapped in.
  • Runs on battery or on existing doorbell wiring.

Weaknesses

  • Owners report battery life from roughly 3 weeks to about 90 days, against a 6-month claim.
  • Some hardwired units still drain, including one that lost connection within three hours.
  • Package detection misses small boxes and padded envelopes.
  • 2.4 GHz Wi-Fi only, with no HomeKit, Matter or IFTTT.
  • The US base package appears to ship without an indoor chime.

Verified specifications

Model / part numbereufy Video Doorbell E340 (Battery Powered); eufy’s support sheet lists part number T8214.
Main camera2K, 2048 x 1536, front-facing and meant for visitors.
Second camera1600 x 1200, on the bottom edge, facing down at the doorstep.
HDRon the main camera.
Night vision16 ft (5 m) range, colour night vision plus infrared LEDs.
Storage8 GB eMMC on the device; no subscription needed.
Detectionhuman body, face, package and human recognition, with Delivery Guard and uncollected-package alerts.
Pre-buffer4 s.
Powerremovable rechargeable battery pack, or existing doorbell wiring.
Wiringeufy’s US page states 8-24 V and above 10 VA; its support spec sheet states existing wiring 16-24 V, 10 VA, or a 19 V-0.6 A DC adapter.
Wi-Fi2.4 GHz only; 5 GHz not supported.
Two-way audiofull duplex.
Indoor chime8 ringtones, pairs with up to 4 chimes, and works with the original mechanical chime.
IntegrationsAmazon Alexa and Google Assistant; no Apple HomeKit, no Matter, no IFTTT.
Mounting48 in (1.2 m) recommended height; a 15° wedge is supplied, and hard walls need a 15/64 in (5.95 mm) drill bit.
Battery chargeabout 5 hours for a full charge; the pack ships pre-installed and charged.
Warranty12 months on the hardware, with a two-year software upgrade service.
Dimensions5.4 × 2.0 × 1.1 in (138 × 50 × 27.5 mm) per eufy’s spec sheet; PCMag measured 6.0 × 1.9 × 1.2 in.
Full research notes and sources

Which model this is

This page covers the eufy Video Doorbell E340 (Battery Powered), part number T8214. Retailers list it as T8214111, and Best Buy uses T821411C. Do not confuse it with the older E330, which needed a HomeBase 2 hub, or with the Floodlight Camera E340 (T8425), a different AC-powered floodlight that shares the E340 name.

The ASIN for this unit is B0FGMYJWF7.

Latency and alerts

Owners on eufy’s own community report the same thing: notifications that arrive only as the visitor rings, and streams that load after the person has gone. eufy’s troubleshooting notes attribute part of this to battery units taking a few seconds to wake from deep sleep. PCMag, by contrast, saw alerts arrive instantly in its test, so the delay is not universal.

Battery life and hardwiring

eufy advertises up to 6 months per charge. Owners report much less: about 90 days in balanced mode, 28 days after dropping sensitivity to minimum and switching off illumination, and as little as 3 weeks in another household. A separate group of owners run the doorbell hardwired and still see the battery drain, including one that started at 50 %, kept the wired indicator, and lost connection within three hours. eufy’s own FAQ says the battery has to stay installed even in wired mode, which matches those reports. Nobody has published a defect rate, so treat the hardwired drain as a known risk rather than a certainty.

Package detection and storage

The downward-facing second camera is the reason to pick this over a single-camera doorbell. It records 1600 x 1200, and independent testers rated the view of the doorstep highly. Package detection has a size floor: eufy’s app warns it works best with packages 10 in or more per side, and one test missed a small box and a padded envelope. Storage is 8 GB on the device with no subscription. A microSD card in the chime and a HomeBase 3 for up to 16 TB are two different upgrade paths that are easy to mix up.

Is it worth it?

Recurring cost is effectively zero if you keep storage local. The extras are a spare Rechargeable Battery Pack at $29.99 and an Add-On Chime at $39.99 (eufy, 2026), plus a microSD card for the chime or a HomeBase 3 if you want more storage. eufy lists the base doorbell at $149.99, Best Buy lists the black model at $149.99, and Dell lists it at $169.99.

Almost all of that value rests on the package camera. If you do not get deliveries, you are paying for a look at your own doorstep.

Warranty is 12 months on the hardware with a two-year software upgrade service, though eufy’s table lists accessories as not covered. The US base package appears to ship without an indoor chime, so budget for one if you want audible indoor ringing.

Sources

Manufacturer:

Independent reviews:

Owner reports:

Stores:

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