The conclusion Two cameras — one on the caller, one on the doorstep — is a cleaner answer to this shelf's central question than any aspect ratio, and eight gigabytes on board means the history costs nothing for as long as you own it. It is also the only doorbell here that tells you what transformer it needs, and the only one that publishes a night-vision range. A hundred and fifty dollars, 2K rather than 4K, no IP rating, and eight gigabytes is a buffer rather than an archive.
What the maker puts in writing
“Two cameras work together… The front-facing camera focuses on people, while the downward-facing camera fills in the gaps with a view of the floor in front of your door.”
8GB eMMC local storage, no subscription fees. “Saves you over $120 per year!”
2K Full HD · dual-light system, clear nighttime viewing distance up to 16ft (5m)
Battery mode, or wired mode powered by the battery and topped up by the wired source · quick-release spare battery
Connects to an existing mechanical chime, or eufy HomeBase 2/3, Minibase Chime, Alexa, Google
“Note: Wired mode requires the battery to be installed and a power source should be connected with 16 to 24V and >10V.”
No IP rating. No aspect ratio. No field of view figure.
Two cameras, not one tall one
Which is a different answer to the shelf’s first question.
This shelf’s introduction: a conventional widescreen sensor frames a face and cuts
off the doorstep.
The usual fix is a tall, near-square ratio that squeezes both into one frame — at
the cost of resolution at the top and distortion at the bottom.
Two cameras give a proper front view of a caller and a proper downward view of the
ground, each optimized for its own job.
The trade: you are watching two feeds rather than one image, and the downward
camera has no published angle or distance.
Eight gigabytes, and no monthly fee
Which is the other reason this doorbell exists.
Eight gigabytes of 2K event clips is a rolling buffer — yesterday’s callers, last
night’s motion, overwriting the oldest as it fills.
It is not the sixty-day history a cloud plan gives you.
The saving is real and eufy states it: over a hundred and twenty dollars a year,
which over three years exceeds the price of the doorbell.
Clip from six weeks ago: wrong doorbell. Who called this week, for nothing: right
one.
Sixteen to twenty-four volts
The only transformer voltage on this shelf.
This shelf’s buying tip says to check it before choosing a wired model.
American doorbell transformers are commonly 16 V. Older installations run 10, and
some run 24. A doorbell wanting 16 to 24 will not work reliably on a 10 V
transformer — which is exactly why eufy adds the “>10V” note.
The two wired-only doorbells on this shelf publish no voltage at all.
And sixteen feet at night
The only night-vision distance here.
Five meters of clear view in the dark, from a dual-light system.
Everything else on this shelf says color night vision, or true color in low
light, and gives no range.
Availability
On sale at around $150 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on October 8, 2026. The live price is at the top of the page.
What reassures, and what does not
Strengths
Two cameras, one of them pointed at the doorstep
8 GB of local storage with no subscription, ever
The only transformer voltage on this shelf: 16–24 V
A 16 ft night-vision range, the only distance published here
A chime included, and an existing mechanical chime supported
A quick-release spare battery, so no downtime while charging
Compromises
A hundred and fifty dollars, tied most expensive on this shelf
No IP rating published
2K rather than the 4K two Ring models claim
No aspect ratio or field of view figure
Wired mode still needs the battery fitted
8 GB is a buffer, not an archive
Specifications
Cameras
TWO: a front-facing camera focused on people and a downward-facing camera covering the floor in front of the door — stated. This shelf's introduction says the specification that separates two doorbells is the shape of the image, because a widescreen sensor cuts off the doorstep; this answers that with a second camera rather than a taller one, and it is the only such design on this shelf
Storage
8 GB of built-in eMMC local storage with no subscription fees, stated to save over $120 per year. It is the only local storage on this shelf — every other doorbell here puts video history behind a monthly plan, and this shelf's introduction compares local storage and what a subscription actually adds as two of its five axes
Wiring
Wired mode requires the battery installed and a power source of 16 to 24 V, with the note ">10V" — stated. It is the ONLY transformer voltage published on this shelf, and this shelf's buying tip says to check that voltage before choosing a wired model. Neither of the two wired-only doorbells here gives one
Chime
Connects to an existing mechanical chime, or pairs with eufy HomeBase 2 (S280), HomeBase 3 (S380), the eufy Minibase Chime (T8023/T8024), Alexa devices or Google Assistant devices — stated, and a chime is included in this kit. It is the fullest chime compatibility statement on this shelf
Power
Battery mode for easy installation, with a quick-release spare battery for swaps rather than downtime; wired mode still runs from the battery, topped up by the wired supply. That hybrid is the right design and one other maker on this shelf does the same
Night vision
A dual-light system with a stated clear nighttime viewing distance of up to 16 ft (5 m), described as the industry's first and as producing less blur than previous night vision. It is the only night-vision DISTANCE on this shelf: the others say color night vision or low light and give no range
Resolution
2K full HD, stated. Two doorbells on this shelf claim 4K and three claim 2K
Aspect ratio
Not published as a ratio or an angle — the two cameras are the answer instead, and the downward one is described by what it covers rather than by degrees
Ratings
No IP rating published, where one maker on this shelf publishes IP65
Amazon reference
B0F5914CT1
EAN
0194644238889
The questions we are asked
Are two cameras better than one tall sensor?
For the parcel on the step, probably yes. This shelf's introduction explains the problem: a widescreen sensor frames a face and cuts off the doorstep, and the usual fix is a tall, near-square ratio that squeezes both into one frame at the cost of resolution at the top and distortion at the bottom. Two cameras give a proper front view of a caller and a proper downward view of the ground, each optimized for its job. The trade is that you are watching two feeds rather than one image, and the downward camera has no published angle or distance.
What does 8 GB actually hold?
Days rather than months of event clips, which is the honest framing. eight gigabytes of 2K event recordings is a rolling buffer — enough to look back at yesterday's callers and last night's motion, overwriting the oldest as it fills. What it is not is the 60-day history a cloud plan provides. The saving is real and eufy states it: over $120 a year, which over three years is more than the doorbell costs. If you need to retrieve a clip from six weeks ago, this is the wrong doorbell; if you need to see who called this week and pay nothing, it is the right one.
Why does the 16–24 V figure matter?
Because this shelf's buying tip says to check your transformer voltage before choosing a wired model, and this is the only doorbell on this shelf that tells you what it needs. American doorbell transformers are commonly 16 V but older installations run 10 V and some run 24; a doorbell wanting 16 to 24 will not work reliably on a 10 V transformer, and eufy adds the ">10V" note precisely there. Measure the transformer before buying any wired doorbell — and note that the two wired-only models on this shelf publish no voltage at all.
Against the rest of the video doorbells
Between security devices of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
Model
Price
Resolution
Aspect ratio
eufy Security E8214 Video Doorbell E340 kit with chime, dual cameras, 8 GB local storage
$150
2K full HD, stated. Two doorbells on this shelf claim 4K and three claim 2K
Not published as a ratio or an angle — the two cameras are the answer instead, and the downward one is described by what it covers rather than by degrees
Retinal 4K, stated — tied highest on this shelf, with two doorbells here at 4K and three at 2K. What 4K buys on a doorbell is the zoom: more pixels to crop into rather than a sharper view of a face two feet away
NOT PUBLISHED. "Wide-angle video" is the whole statement — no ratio, no field of view in degrees, and no head-to-toe claim. This shelf's tag reads: a tall aspect ratio shows the parcel on the step, not just the face. Three doorbells here answer that with a figure or a mechanism; this is not one of them
Retinal 4K, stated as the ultimate clarity, with up to 10x Enhanced Zoom. Tied with one other model here as the highest resolution and zoom on this shelf
Not published. "Wide-angle video" is the whole statement — no ratio and no field of view in degrees, on a shelf whose tag is about exactly that
If price decides: Reolink Video Doorbell (Battery), at $120.
What this one costs among video doorbells
Details checked on October 8, 2026.
The buyer this one serves, among security devices
A doorstep with parcels on it and a household that will never pay a monthly fee
What buyers actually choose
Amazon reports what buyers took in the month before this page was last checked: at least 2,000.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Sources
Specifications: the manufacturer sheet for home security products and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
2.5K 5MP · 166° wide · night vision · two-way audio with voice change · chime included
A 5 MP doorbell on a 166° lens with a chime in the box and a voice changer on the two-way audio. BOIFUN states human detection and Alexa compatibility through its own skill.
Best for: A house where the doorbell must be audible indoors without buying a separate chime.
2K 4MP · 150°×150°×180° 1:1 view · HDR · local person, vehicle, pet and parcel detection · dual-band
The second-generation battery doorbell: the same square head-to-toe frame with HDR added, and detection that Reolink states runs locally on the device rather than in a cloud service.
Best for: A bright doorway where a caller is backlit, and an owner who wants nothing leaving the house.
2K 4MP · 1:1 head-to-toe aspect · dual-band Wi-Fi · card to 256 GB · two charging methods
Reolink uses a square 1:1 sensor rather than a widescreen one, so the frame is as tall as it is wide and shows a caller head to toe with the step included. Local storage to 256 GB, with no subscription required.
Best for: A doorstep where the parcel matters as much as the caller.