eufy Security Video Doorbell E340 Review 2026: Still Worth It?

Your front door sees more traffic than any other part of your home. Delivery drivers drop boxes. Neighbors knock. Strangers walk up. A regular peephole shows you almost nothing, and a cheap doorbell camera shows you a face while missing the package sitting on your mat.

The eufy Security Video Doorbell E340 tries to fix that gap with two cameras instead of one. It watches the visitor and the doorstep at the same time. It stores footage on the device itself, so you pay nothing every month.

I lived with this doorbell through rain, snow, dark winter mornings, and a very long parade of Amazon vans. This review covers what impressed me, what annoyed me, and what eufy quietly leaves out of the marketing.

Key Takeaways

• Two cameras beat one. The 2K top camera captures faces at 2048×1536, while the 1080p bottom camera looks straight down at your doormat. You see the person and the package in one recording, which no single lens doorbell can match.
• No subscription, ever. The E340 packs 8GB of onboard eMMC storage. Footage saves locally on the doorbell. You can watch, download, and share clips without a cloud plan. This alone saves roughly $40 to $100 per year compared to Ring or Nest.
• Battery life lands between 60 and 120 days in normal use, not the six months eufy advertises. Busy sidewalks and cold weather cut that number fast. The battery pops out and recharges in about five hours.
• Installation takes 20 minutes with zero wiring if you use battery mode. Hardwiring works too, but only with a 16V to 24V transformer rated at 10VA or higher.
• It is not perfect. There is no Apple HomeKit support, no 5GHz WiFi, no ignored zones, and no support for original digital chimes. Some owners report firmware updates breaking notifications.
• Best value pick of 2026 for homeowners who want strong hardware and hate recurring fees.

eufy Security Video Doorbell E340 Overview

Last update on 2026-08-23 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!

The E340 sits in the middle of the eufy doorbell family. It launched as the successor to the popular Video Doorbell Dual, and it keeps the twin lens idea while trimming the setup requirements.

Here is the core spec sheet in plain language. The main camera shoots 2K at 2048×1536 with HDR, giving you a tall 4:3 style view that captures a visitor from head to shoe. The second camera shoots 1080p at 1600×1200 and points down at your porch floor.

Both cameras handle night duty. The top lens delivers color night vision thanks to a built in spotlight, and infrared reaches about 16 feet in total darkness.

Power is flexible. You can run the E340 on its removable rechargeable battery or wire it into existing doorbell wiring at 16V to 24V, 10VA. A 19V 0.6A DC adapter also works.

The body measures 5.4 inches tall, 2 inches wide, and 1.1 inches deep. It carries an IP65 weatherproof rating and survives temperatures from minus 4°F to 122°F.

Smart features include human body detection, face detection, facial recognition, package detection, activity zones, and a 4 second pre buffer that records what happened just before motion triggered.

You also get full duplex two way audio, meaning you and the visitor can talk over each other naturally instead of taking turns like a walkie talkie.

Unboxing Experience And First Impressions

eufy keeps its packaging simple, and I like that. The box arrives in the brand’s white and blue color scheme with a large product photo on the front.

Slide the sleeve off and the doorbell sits in a molded tray at the top. It feels heavier than expected, around 8 ounces, which immediately signals that this is not hollow plastic junk.

Underneath the tray you find a neat cardboard compartment with everything else. The kit includes a wall mounting bracket, a 15 degree wedge, a security screw, a screwdriver, a USB C charging cable, wire extensions, mounting screws, wall anchors, a drill template sticker, and the quick start guide.

If you buy the chime bundle, a small white plug in chime sits in its own compartment. That chime is genuinely useful, since it saves you from relying on your phone alone.

My first impression of the doorbell itself was positive. The front is glossy black plastic with a matte grey border. The button ring glows white and feels firm when pressed.

Peel the protective film off both camera lenses. Do not skip this step, because a hazy first video will make you think the camera is defective.

The battery hides behind a small release on the back. Pop it out, charge it to full before mounting, and you save yourself a ladder trip later.

Total unboxing to charged and ready took me about 15 minutes, mostly waiting on the app account setup.

Design And Build Quality

The E340 looks like a serious security device rather than a decoration. It is tall and narrow, and that shape exists for a reason: the second camera needs vertical room.

Build quality feels solid. The plastic shell resists flex when squeezed, and the seams are tight with no rattles.

The IP65 rating handled everything my weather threw at it. Heavy rain, sideways sleet, and summer heat caused zero fogging or water intrusion during my testing period.

There are two color options, black and a black with white trim variant depending on the bundle. The glossy front does collect fingerprints and dust, so plan on a quick wipe every few weeks.

The included wedge is more important than it looks. Most front doors sit at an angle to the walkway, and the 15 degree wedge lets you aim the cameras where people actually stand.

One design choice deserves criticism. The doorbell is bulky compared to a Ring Battery Doorbell Plus or a Nest Doorbell. On a narrow door frame or a thin brick column, it can look oversized.

The security screw at the bottom is a small but smart touch. A thief cannot simply yank the unit off the wall without the included tool.

The speaker sits behind a grille on the lower front. Volume is loud enough to be heard from the sidewalk, though it distorts slightly at maximum setting.

Overall, this feels like a product built to sit outside for five years, not five months.

Top 3 Alternative for eufy Security Video Doorbell E340

Last update on 2026-08-22 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!

eufy Security Video Doorbell S330

Last update on 2026-08-22 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!

Ring Battery Doorbell Plus

Last update on 2026-08-22 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!

Blink Video Doorbell

Installation Process And Setup

This is where the E340 wins over most competitors. You do not need to touch a single wire if you do not want to.

Battery installation is straightforward. Stick the paper template on your wall, drill two holes, insert anchors, screw the bracket down, and click the doorbell into place.

I mounted mine on brick, which added about 10 minutes of hammer drill work. On wood siding or a wooden door frame, the whole job takes under 15 minutes.

Mounting height matters more than people realize. Place the doorbell at 48 inches from the ground so the lower camera actually sees your doormat instead of your knees.

App pairing is quick. Download the eufy Security app, create an account, scan the QR code on the doorbell, then let the device scan a QR code your phone displays.

Here is the first real limitation. The E340 connects only to 2.4GHz WiFi networks. If your router combines both bands under one name, you may need to split them temporarily during setup.

Hardwiring is possible and does extend runtime, but the requirements are strict. You need a transformer supplying 16V to 24V at 10VA minimum, and older homes often have 10VA or weaker units.

Original mechanical chimes work fine. Original digital chimes do not. eufy is clear about this in the manual, though buyers frequently miss it and end up frustrated.

Firmware updates run automatically after setup. Let the first one finish completely before you start adjusting settings.

Video Quality During Day And Night

The 2K main camera produces genuinely sharp daytime footage. Faces stay identifiable at roughly 12 to 15 feet, and license plates on cars in a short driveway are often readable.

HDR does real work here. When a visitor stands with bright sky behind them, the E340 balances the exposure instead of turning them into a black silhouette.

The field of view is tall rather than wide. You see people from head to toe, which is more useful than an ultra wide lens that fisheyes everything.

Color reproduction leans slightly cool. Red delivery uniforms look accurate, and skin tones are natural under most lighting.

Night performance splits into two modes. With the spotlight on, you get full color night video that clearly shows clothing colors and vehicle details.

With the spotlight off, infrared kicks in and gives clean black and white footage out to about 16 feet. Beyond that range, detail collapses into grain.

The spotlight has a downside. It is bright, and if your doorbell faces a bedroom window or a neighbor’s porch, it will annoy someone. You can dim it or schedule it off in the app.

Motion recordings play back smoothly at 15 frames per second. This is not 30fps video, so fast movement shows slight stutter, but it stays perfectly usable for identification.

Video compression is efficient. A 30 second clip uses very little of your 8GB, which is how eufy fits weeks of footage on the device.

The Second Camera And Package Detection

This is the reason to buy the E340 over anything else in its price range. The bottom camera looks straight down at your porch floor.

When a driver drops a box, the doorbell records it. When someone picks that box up later, the doorbell records that too.

The app shows both feeds at once in a split view. You can also swap between them or view them stacked, depending on your preference.

Package detection uses AI to identify boxes and envelopes. It then sends a dedicated “Package Delivered” notification separate from regular motion alerts.

There is a second alert type called “Package Taken” that fires when a detected package disappears from view. This is the feature that catches porch pirates.

Accuracy is good but not flawless. Large brown boxes trigger detection almost every time. Thin poly mailers and small envelopes get missed more often than I expected.

You can also set the doorbell to speak a voice message when a package sits unattended for too long. It sounds a little robotic, but it works as a deterrent.

The bottom camera has one blind spot worth knowing. It sees the ground directly below the doorbell, not the whole porch. If your delivery driver leaves boxes six feet to the left, you will not see them.

Positioning solves most of this. Mount the doorbell near where packages actually land, and the feature earns its keep every single week.

Battery Life In The Real World

eufy advertises up to six months of battery life. That number assumes very light activity, and most homes will not hit it.

My testing produced results between 60 and 90 days per charge on a moderately busy suburban street. Reddit owners report similar figures, with one user measuring roughly 90 days in balanced surveillance mode.

Several factors drain the battery faster. High detection sensitivity, frequent live view sessions, long recording lengths, and cold weather all cut runtime.

Cold is the biggest enemy. During a stretch of freezing weather, my drain rate roughly doubled compared to mild spring days.

The good news is the design. The battery pack slides out in seconds without removing the doorbell from the wall in most mounting setups.

A full recharge takes about five hours over USB C. Many owners buy a spare battery and swap them, which eliminates downtime entirely.

The app shows battery percentage clearly and sends a low battery warning at 15 percent. That warning gives you plenty of lead time.

If you hardwire the doorbell, the battery stays topped up and you basically never think about it again. This is the setup I recommend if your wiring supports it.

One quirk frustrates hardwired users. Some report the wired power only engages once the battery drops below a certain threshold, so the percentage cycles rather than sitting at 100. eufy confirms this is normal behavior, not a fault.

AI Detection And Notification Accuracy

The E340 runs its detection on device. Nothing needs to reach a server before you get an alert.

Human detection is the standout. In my testing, it correctly identified people well over 90 percent of the time and rarely fired for passing cars.

Face detection adds a layer on top. The doorbell captures a face snapshot and attaches it to your phone notification, so you know who is at the door before opening the app.

Facial recognition lets you tag known faces. Once trained, the app announces “Mom is at the front door” instead of a generic motion alert.

Training takes patience. You need several clear captures of each person before recognition becomes reliable, and hats or sunglasses break it.

Activity zones let you draw the area you want monitored. Draw a box around your walkway and the sidewalk traffic stops bothering you.

Here is a real gap: the E340 does not support ignored zones. You can include areas, but you cannot specifically exclude a spot like a swaying flag or a reflective window.

Notification speed averaged two to four seconds on a strong WiFi signal. On a weak signal, delays stretched to eight seconds or more.

The 4 second pre buffer is excellent. Recordings start before the trigger, so you never lose the first moment of an event.

The honest complaint from owners is inconsistency after certain firmware updates. Some users report missed recordings and silent notifications until they reset the device.

Local Storage And Zero Monthly Fees

The E340 stores everything on 8GB of built in eMMC memory. No cloud plan is required to record, review, or download footage.

That 8GB holds a surprising amount. Because clips are short and compressed, most households store several weeks of events before older footage rotates out.

You can download any clip to your phone and share it by text, email, or with police. The export process takes a few taps.

eufy does offer optional cloud storage if you want offsite backup. You can ignore it completely and lose no core functionality.

Compare that to the competition. Ring, Nest, and Arlo all lock recorded history behind monthly plans, and prices have climbed steadily.

Over three years, a subscription free doorbell can save you $150 to $300. That savings often exceeds the purchase price of the E340 itself.

Security matters here too. eufy uses AES 128 encryption for local storage and offers two factor authentication on your account.

A word of fairness: eufy faced criticism in 2022 over cloud thumbnail handling and encryption claims. The company changed its practices afterward and now publishes clearer documentation.

There are trade offs to local storage. If a thief steals the doorbell, the footage on it goes with them. The security screw helps, but it is not a vault.

There is also no microSD slot on the E340, so you cannot expand beyond 8GB. You can, however, connect it to a eufy HomeBase 3 for expanded storage and cross device features.

eufy App Experience And Daily Use

The eufy Security app is clean and fast. The home screen shows your device tile with a thumbnail, battery level, and quick access to live view.

Live view loads in about two to three seconds on WiFi. On cellular data, expect four to six seconds.

The event timeline organizes clips by type. Filter by person, package, or doorbell press to find what you need quickly.

Settings depth is genuinely good. You can adjust detection sensitivity, recording length, video quality, spotlight behavior, chime volume, and power mode.

Three power modes exist: optimal battery life, balanced surveillance, and optimal surveillance. Balanced is the sweet spot for most homes.

Quick responses let you play prerecorded messages. Telling a driver “Please leave the package at the door” with one tap beats fumbling for the microphone.

Security modes cover Home, Away, Schedule, and Geofencing. Geofencing uses your phone location to switch modes automatically.

The app supports multiple users through family sharing. Each member gets notifications and live view access.

Now the criticism. The app occasionally logs you out and requires a fresh login, which is inconvenient when you want to see the door right now.

Push notifications also depend heavily on your phone battery optimization settings. Android users especially need to whitelist the app or alerts arrive late.

Interface polish trails Ring slightly. eufy’s app is more capable but a little less intuitive for first time smart home owners.

Smart Home Compatibility

The E340 works with Amazon Alexa and Google Assistant, but the support is partial rather than complete.

With Alexa, you can start a live stream by voice on an Echo Show. Doorbell press announcements also work through Echo speakers.

What Alexa cannot do is two way conversation through the doorbell or motion announcements. These omissions matter if you built your home around Echo devices.

Google Assistant support is thinner. Voice commands start a stream on a Nest Hub, but two way talk, motion announcements, and doorbell press announcements are all missing.

Apple HomeKit is not supported at all. iPhone owners deep in the Apple ecosystem should look elsewhere or accept using a separate app.

There is no IFTTT integration and no official Home Assistant support. Community projects exist, but eufy does not endorse them.

The doorbell does pair with other eufy gear. Adding a HomeBase 3 unlocks BionicMind facial recognition across your cameras and expands storage.

Up to four eufy indoor chimes can pair with a single E340 over 433MHz wireless. That covers a large or multi floor house well.

The doorbell also works alongside eufy smart locks for a combined entry system. This is where eufy rewards brand loyalty, since mixed brand setups lose features.

For most buyers, the compatibility gaps are livable. You will simply use the eufy app as your primary control, which honestly works better than the voice integrations anyway.

What The E340 Does Not Do Well

Every honest review needs this section. The E340 has real weaknesses, and pretending otherwise helps nobody.

No 5GHz WiFi. The 2.4GHz only radio limits bandwidth and causes trouble in apartments with crowded wireless channels.

No Apple HomeKit. This is the single biggest deal breaker for iPhone households running HomeKit automations.

No ignored zones. You can include areas but cannot exclude specific trouble spots, which leads to avoidable false alerts.

No continuous 24/7 recording. The doorbell records events only, even when hardwired. If you want always on footage, this is not your device.

Digital chimes are unsupported. Homes with modern digital chime boxes must use the eufy plug in chime instead.

Battery claims are optimistic. Six months is marketing. Plan for two to three months and you will not be disappointed.

Firmware updates carry risk. Multiple owners have reported notification failures and recording gaps after specific updates, resolved only by factory resetting the device.

Hardwired power behaves oddly. Low VA transformers cause charging failures, and the battery percentage fluctuates rather than staying full.

The unit is bulky. On slim door frames it dominates the space visually.

Package detection misses small items. Envelopes and thin mailers slip past the AI more often than boxes.

Customer support responsiveness varies. Some users report quick help through the app chat, others describe long email chains.

None of these are dealbreakers for most buyers. They are simply the honest cost of choosing a subscription free doorbell at this price.

Pros And Cons Of The eufy E340

Here is the balanced scorecard.

Pros

• Dual camera design captures both the visitor and the doorstep, a feature almost no rival offers at this price.
• Zero monthly fees with 8GB of local storage built into the doorbell itself.
• Sharp 2K HDR video with genuine color night vision from the built in spotlight.
• Flexible power through a removable rechargeable battery or existing doorbell wiring.
• Reliable AI human, face, and package detection processed entirely on the device.
• Easy 20 minute installation with no electrical work required in battery mode.
• Solid IP65 weatherproofing that handles rain, snow, and extreme temperatures.
• Full duplex two way audio allows natural conversation instead of push to talk.
• 4 second pre buffer captures the moment before motion triggers.
• Supports up to four wireless indoor chimes for large homes.

Cons

• No Apple HomeKit support whatsoever.
• 2.4GHz WiFi only, which struggles in congested wireless environments.
• No ignored zones for excluding problem areas from detection.
• Real world battery life falls well short of the advertised six months.
• Original digital chimes are incompatible, forcing use of the eufy chime.
• No continuous recording option even when hardwired.
• Storage cannot be expanded beyond the built in 8GB without a HomeBase.
• Some firmware updates have broken notifications for owners.
• The body is noticeably bulky on narrow door frames.
• Alexa and Google support is limited to basic streaming and announcements.

Who Should Buy The eufy E340

Last update on 2026-08-22 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!

This doorbell suits specific people extremely well and disappoints others.

Buy it if you receive frequent deliveries. The second camera transforms package monitoring from guesswork into evidence.

Buy it if you refuse to pay subscriptions. The local storage model is the entire point, and it works exactly as promised.

Buy it if you rent or cannot wire. Battery mode means no electrician, no transformer, and no permanent modification.

Buy it if you want strong night footage. The color night vision genuinely outperforms most budget doorbells.

Skip it if you live in Apple’s ecosystem. The missing HomeKit support will frustrate you daily.

Skip it if you need 24/7 recording. Event based capture only is a hard limit here.

Skip it if your WiFi is weak at the front door. The 2.4GHz radio needs a decent signal to perform.

Skip it if you want a tiny discreet doorbell. This is a chunky device by design.

Pricing typically lands around $179 at list, with frequent sales bringing it near $120 to $140. Check current pricing before buying, since eufy discounts aggressively during major sale events.

The kit with the plug in chime costs slightly more and is worth it. Relying on phone notifications alone means missing visitors when your phone sits in another room.

Final Verdict

The eufy Security Video Doorbell E340 remains one of the smartest buys in home security for 2026. The dual camera setup solves a problem single lens doorbells simply cannot address.

Video quality is sharp. Detection is accurate. Installation is painless. And the absence of a monthly bill removes the quiet resentment that subscription hardware creates.

The flaws are real but predictable. Missing HomeKit, 2.4GHz only WiFi, optimistic battery claims, and occasional firmware hiccups all deserve mention.

None of them undermine the core product. You are getting hardware that would cost more elsewhere, paired with a storage model that costs nothing forever.

I rate it 4.3 out of 5. It is the doorbell I recommend to friends who value evidence over ecosystem polish.

If you want the absolute smoothest smart home integration, buy a Ring or a Nest and accept the subscription. If you want the best camera coverage for your money and full ownership of your footage, the E340 is the answer.

Frequently Asked Questions

Does the eufy E340 require a subscription?

No. The E340 stores all footage on 8GB of built in memory. You can view, download, and share clips without paying anything. Cloud storage exists as an optional extra that most owners never need.

How long does the eufy E340 battery actually last?

Expect 60 to 90 days in typical use. Very quiet locations may reach 120 days or more. Busy streets, cold weather, and high sensitivity settings shorten this considerably. A full recharge takes about five hours.

Does the eufy E340 work with Apple HomeKit?

No. The E340 does not support Apple HomeKit in any form. It works with Amazon Alexa and Google Assistant for voice activated live streaming, though those integrations are limited.

Can I hardwire the eufy E340?

Yes. You need existing doorbell wiring supplying 16V to 24V at 10VA or higher. A 19V 0.6A DC adapter also works. Older transformers below 10VA will not charge the device properly.

Does the E340 work with my existing chime?

Mechanical chimes work. Digital chimes do not. If you have a digital chime box, use the eufy wireless plug in chime instead, which supports up to four units per doorbell.

What is the difference between the E340 and the S330?

The S330 uses two 2K cameras and requires a HomeBase for full features in some configurations. The E340 uses a 2K main camera plus a 1080p downward camera and stores footage onboard without a HomeBase.

Does the eufy E340 need 5GHz WiFi?

No, and it cannot use it. The E340 connects only to 2.4GHz networks. Split your bands during setup if your router broadcasts both under one name.

Is the E340 weatherproof enough for winter?

Yes. It carries an IP65 rating and operates from minus 4°F to 122°F. Battery drain increases in freezing conditions, but the hardware itself handles harsh weather without issues.