eufy Security Video Doorbell E340 Dual Cameras, 2K

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Product guide

eufy Security Video Doorbell E340 Dual Cameras, 2K

The eufy Security Video Doorbell E340 combines dual cameras with 2K video, colour night vision and 8 GB of listed storage. Its battery can be used for battery or hardwired operation, while the listing says a battery must remain installed in wired mode.

At a glance

Two cameras are described as covering people at the door and the floor near the entrance, supporting package viewing.
The listing specifies 2K video, colour night vision and a claimed night-viewing distance of up to 16 ft.
Local 8 GB storage is listed, and the product is described as operating without a monthly fee.
Battery operation or wired power is offered. Wired mode still requires the battery to be installed.

Price

£83.99Save 51%

Reference price: ~~£169.99~~

Price checked: 14 Nov 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

eufy Video Doorbell Chime 2, 10 Built-in Chimes | 2.4 GHz and 5 GHz Dual-Band Wi-Fi Connectivity, Easy Setup, Bluetooth Auto-Pairing, Adjustable Volume up to 80 dB

£29.99

eufy Security Rechargeable Battery Pack with USB-C, 6,200 mAh Capacity | Quick-Release Battery, Long-Lasting Backup Power, Easy to Install and Remove, Compatible with eufy Video Doorbell E340&C31

£17.99

Pros and cons

Pros

Dual-camera design is intended to show both visitors and the doorstep area where deliveries may be left.
Local storage and no monthly fee are stated in the listing.
The removable battery and hardwire option allow a choice of installation approach.

Cons

Wi-Fi support is limited to 2.4 GHz, so a 5 GHz-only network is not supported according to the listing.
Wired operation does not eliminate the battery requirement. The battery must stay installed.

Technical specifications

26 specifications

Identity
Brand	eufy Security
Model	Video Doorbell E340 Dual Cameras

Display and video
Video resolution	2K
Night vision	Night Color
Night vision range	16 Feet
Camera channel count listed	1

Camera optics
Sensor technology	CMOS
Focus type	Auto Focus
Zoom type listed	Digital Zoom

Connectivity and controls
Wireless connection listed	Wi-Fi
Wi-Fi band	Wi-Fi,2.4G only
Control method	App
Alert type listed	Motion Only
Compatible device listed	Smartphone

Power and battery
Power configuration	Battery or Hardwire, Removable Battery
Voltage	3.7 Volts
Wattage	6 watts
Batteries required	Yes

Dimensions and installation
Mounting type listed	Wall Mount
Form factor	Dome
Dimensions	15 x 5.2 x 2.8 centimetres
Weight	0.52 Pounds

Materials and protection
Water resistance listed	Waterproof
Material	Metal
Waterproof rating	IP65

Storage
Storage capacity listed	8 GB

What to know before buying

Listing details to confirm

The listing is inconsistent about camera count: the title and feature text describe dual cameras, but the technical details give a channel count of 1. It also uses both “2K” and “2K FHD” wording. Confirm the configuration and resolution description for the selected listing before buying. Wired mode requires an installed battery and a connected 8 to 24V power source rated above 10VA. Chimes and smart-home options are compatibility-dependent. The listing says the original eufy Wi-Fi Chime, certain eufy chimes and Apple HomeKit are unsupported.

What’s in the box

Included

Video doorbell
Rechargeable battery pack
USB-C charging cable
Mounting bracket
15-degree mounting wedge
Screw-hole positioning card
2 extension cables
Detaching pin
Quick-start guide (listed twice)
Warming sticker

Who is it for?

A good fit for

Buyers who want a video doorbell with a downward-facing view intended to show parcels near the entrance.
Households that prefer local storage and want to avoid a stated monthly subscription fee.
Installations where either battery power or a suitable wired supply is practical.

Less suited to

Homes that require 5 GHz-only Wi-Fi.
Buyers who need a wired doorbell that works without an installed battery.
Anyone who needs confirmed simultaneous camera viewing, since the listing gives conflicting camera and channel descriptions.

eufy Security Video Doorbell E340 Dual Cameras, 2K · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 4,387 ratings

5 stars61%61%
4 stars14%14%
3 stars6%6%
2 stars5%5%
1 star14%14%

Customer feedback highlights clear daytime and night-time pictures, straightforward app-guided setup and appreciation of having no subscription fees. These reports align with the listed 2K video, colour night vision and local storage, but are customer perceptions rather than verified performance. Reliability and connectivity feedback is mixed, as is battery life, so buyers who depend on continuous access or longer periods between charges should consider those uncertainties. Aggregate ratings are generally favourable but include a notable low-rating share, and ratings alone do not explain the reasons.

Positive themes

Customers report clear picture quality in both day and night conditions.
Customers appreciate the app-guided setup and lack of subscription fees.

Mixed feedback

Feedback on reliability and connectivity is mixed, with some customers reporting connection problems or the doorbell stopping after a period of use.
Battery-life feedback is mixed, ranging from good experiences to reports of quick drain.

Frequently asked questions

Does the E340 support 5 GHz Wi-Fi?

No. The listing specifies 2.4 GHz Wi-Fi only.

Can it be used in wired mode without a battery?

No. The supplied information says the battery must remain installed in wired mode, with a connected 8 to 24V supply rated above 10VA.

Does it include local storage?

The listing specifies 8 GB of storage and describes it as built-in local storage, with no monthly fee.

What chimes can it connect to?

The listing names an existing mechanical chime, eufy HomeBase S280 or S380, MiniBase Chime T8023 and Alexa. It also states that some older eufy chimes and Apple HomeKit are not compatible.