It fits the hole the old peephole already made
A digital viewer is the least invasive device on this site: it goes through the hole an existing peephole already occupies, needs no cable and no drilling, and is therefore often the only option for a renter. It shows the landing on a small screen instead of through a lens, which matters for anyone who cannot comfortably reach a peephole at standard height. The specification to check first is door thickness range — the barrel has to span your door and clamp on both sides. We compare thickness range, screen size, motion capture to card, battery life and viewing angle.
3.2-inch screen · 105° view · live view only · doors 38 to 110 mm (1.5 to 4.3 in)
Yale's straightforward digital viewer: a 3.2-inch screen inside, a 105° lens outside, and a live view at the press of a button. No recording, no app, no network.
Best for: Anyone who cannot comfortably use a conventional peephole, and does not want a connected device on the door.
≈ $68
3.2-inch screen · 105° view · live view only · white finish
The same Yale viewer in white. Identical 3.2-inch screen, identical 105° lens, identical absence of recording or connectivity — the finish is the only difference.
Best for: A white or light-colored door, where the silver version would stand out.
≈ $185
3.5-inch LCD · 2 Mega CMOS · 120° · door hole 14–28 mm (0.55 to 1.10 in), door thickness 35–100 mm (1.38 to 3.94 in), a wide range · indoor unit 120 × 62 × 20 mm (4.72 × 2.44 × 0.79 in) · camera ≈30 mm (1.18 in) · 4 AAA, not included · battery changed without removing the unit · the only listing here that argues against itself
The widest door range on the shelf, and the only listing on this site that tells you what its own product cannot do.
Best for: A thin apartment door — 35 mm (1.38 in) up — where the honesty about low light is worth more than a night vision claim
≈ $56
Fits 12–14 mm (0.47 to 0.55 in) peephole, 54–75 mm (2.13 to 2.95 in) door · knock detection · no drilling · Ring app
A peephole camera for tenants: it replaces an existing peephole in a door of 54 to 75 mm (2.13 to 2.95 in) with no drilling and no cabling, and adds motion alerts and knock detection to the Ring app.
Best for: A rented apartment where drilling the door frame is not permitted and a doorbell cannot be fitted.
3.5-inch LCD · 1 Mega CMOS · 120° actual viewing angle · door hole 14–28 mm (0.55 to 1.10 in), door thickness 40–100 mm (1.57 to 3.94 in), both published · indoor unit 120 × 62 × 20 mm (4.72 × 2.44 × 0.79 in) · outdoor camera 32 mm (1.26 in) · 4 AAA, not included · low-battery alert · press to wake, no standby drain
One of only two viewers here that publish both the door thickness range and the peephole bore — the two measurements this shelf says to check first.
Best for: A tenant replacing an existing peephole who needs to know it will fit before ordering
≈ $58
3.5-inch LCD at 480 × 320 — the only screen resolution published on this shelf · 720p camera claimed · 120° · zinc alloy outdoor unit · NO door thickness, NO peephole bore, NO battery, NO storage · five of its ten bullets are empty
The only listing here that publishes its screen resolution, on a page whose last five bullets contain nothing at all.
Best for: Nobody, until the seller supplies a door thickness range and a bore diameter in writing
≈ $58
4.3-inch screen · 146° view · 2 MP · no motion sensor · no night vision
A 4.3-inch screen and a 146° lens, and EZVIZ is unusually direct about what it does not have: no motion detector and no night vision. It shows who is at the door when somebody rings or when you look.
Best for: A household wanting a large, simple screen — including for people who will not use an app.
3-inch TFT LCD · 1 MP IR camera with two 850 nm infrared lamps, the only night vision here · 120° · 75 photos to built-in memory, no card · 1200 mAh lithium battery, up to 180 days standby · zinc alloy · NO door thickness range and NO peephole bore published
The only viewer here that sees in the dark, stores pictures and recharges — and the only one that will not tell you whether it fits your door.
Best for: An unlit communal landing, on a door whose thickness and bore you can confirm with the seller first
≈ $73
3K 5MP · 4.3-inch screen · 149° view · Wi-Fi 6 dual band · 4,800 mAh · card to 512 GB
The most capable viewer here: 5 MP behind a 149° lens, a 4.3-inch screen, dual-band Wi-Fi 6, a 4,800 mAh battery and recording to a card of up to 512 GB, with a privacy mode for shared corridors.
Best for: An apartment door where the viewer should also record, and where the corridor is shared with neighbors.
The screen size decides what you make out without putting your eye up to it. That is exactly what an optical peephole imposes and a digital one avoids.
The field of view decides what you see to the sides, where someone can stand out of the axis.
A viewer built for a 2-inch door will not clamp onto a thicker security door. The H-COME states 35 to 100 mm (1.4 to 3.9 in); the EZVIZ CP2 goes to 105 mm (4.1 in), while the Ring stops at 75 mm (2.95 in).
H-COME 3.5-inch digital peephole viewer, 2 Mega CMOS, 4 × AAA
A digital viewer fits into the hole of an existing peephole in most cases. The diameter has to match.
Each model states a range. A thicker or thinner door prevents the two halves clamping correctly.
No, unlike an optical peephole whose darkening is noticeable. It is one of the advantages of digital.
Several months in normal use. Models with motion detection consume markedly more.
Some models take a photo at every ring or detection. That constitutes processing of personal data, with the corresponding obligations.
A badly lit landing gives a poor image. Some models have short-range infrared lighting.
It depends on the thickness and the existing hole. Drilling a security door compromises its certification.
Yes, in the same hole if the diameter matches, often between fourteen and twenty-six millimeters. A hole smaller than the device needs reaming, which goes badly on a security door.
A digital viewer does not signal that you are looking, unlike an optical one whose darkening shows. Check the door thickness range, and never drill a security door — its certification depends on it.
A characteristic has to come from four devices in five to hold a column. Below that, we would be lining up empty cells.
| Model | Price | Field of view | Screen |
|---|---|---|---|
| H-COME 3.5-inch digital peephole viewer, 2 Mega CMOS, 4 × AAA | $56 | 120 degrees — stated | 3.5-inch LCD color screen, driven by an OV industrial color image sensor — stated. No screen resolution figure |
| Dioche 3.5-inch digital door viewer, 120°, 4 × AAA | $58 | 120 degrees, stated as the actual viewing angle — the word actual is unusual and worth noting, since lens angles are routinely quoted diagonally | 3.5-inch high-definition color LCD — stated. No resolution figure for the screen itself |
| Socobeta 3.5-inch digital peephole viewer, 480 × 320 screen | $58 | 120 degrees — stated, the same as every viewer on this shelf | 3.5-inch LCD color display at 480 × 320 — stated. It is the only screen resolution published on this shelf, and a useful figure: 480 × 320 across 3.5 inches is about 165 pixels per inch, which is legible rather than sharp |
| Yale Digital Door Viewer 500 (silver) | $68 | 105° | 3.2-inch, stated by Yale |
| Sonew 3-inch TFT digital door viewer with 1 MP IR camera and 1200 mAh battery | $73 | 120 degrees — stated, the same as every other viewer here | 3-inch TFT LCD — stated, and the smallest screen on this shelf. The three other US-listed viewers are 3.5-inch; the Yale viewers are 3.2-inch |
| Yale Digital Door Viewer 500 (white) | $185 | 105° | 3.2-inch, stated by Yale |
| EZVIZ CP2 | — | 146° | 4.3-inch color, stated by EZVIZ |
| Imou VD1-5M0S | — | 149° | 4.3-inch color |
| Ring Door View Cam | — | — | — |
$56 – $58
2 models
H-COME 3.5-inch digital peephole viewer, 2 Mega CMOS, 4 × AAA, Dioche 3.5-inch digital door viewer, 120°, 4 × AAA
$58 – $68
2 models
Socobeta 3.5-inch digital peephole viewer, 480 × 320 screen, Yale Digital Door Viewer 500 (silver)
$73 – $185
2 models
Sonew 3-inch TFT digital door viewer with 1 MP IR camera and 1200 mAh battery, Yale Digital Door Viewer 500 (white)
Specifications: manufacturer sheets for home security products and the matching Amazon product pages. Prices and availability: Keepa. Every figure in this table names its source.
Most recent revision in this category: October 8, 2026.
Prices quoted in these summaries are dated readings. The live price is shown next to each product.
