Size and form factor

The slim, narrow body fits many door frames and is often cited as a key advantage of the wired design.

Size and form factor are frequent highlights: it is slim, small, and fits narrow door frames better than many competitors, without a bulky battery housing.

The unit is repeatedly described as relatively compact for a doorbell camera, avoiding the oversized look of some competitors.

Frequently praised as compact/slim, making it easier to fit on narrow door trim compared with bulkier competitors.

Size and shape are described as compact, with comparisons noting the 1080p unit can be smaller than some 2K versions. The included wedge helps adapt the form factor to tighter porch angles.

Reviews commonly describe the wired model as compact and lower-profile than many competitors, and smaller than the battery version, with a generally favorable footprint for most door frames.

The device is on the larger/heavier side and may be tight on narrow trim; many still find it manageable with included mounts.

Size is discussed as a practical consideration: the wireless unit is described as larger than the wired model, while another review calls the wireless design compact and easy to place.

Form factor impressions are mixed: some describe it as slim/clean, while others call it a bit larger or bulkier than certain competitors. Fit can be affected by wedge use and door hardware clearance.

Several reviewers call the unit bulkier or heftier than slimmer competitors, which can be a visual downside even if it feels robust.

Size is a frequent theme: many call it wider and bulkier than sleek competitors, largely due to the six AA battery design. Some reviewers still find the shape acceptable or even understated once installed, but tight doorframe spaces can be challenging.

The Duo Cam is often described as larger/bulkier than single-lens models, though still relatively slim for a dual-camera design.

Several sources call the doorbell a bit bulky compared with slimmer rivals, but also note it feels sturdy and secure on its mount.

The second generation is commonly described as a bit thicker/heavier than the original due to three AA batteries, but still reasonably compact for a doorbell.

The doorbell is often described as chunky, largely due to the AA battery compartment, and the required indoor chime needs a nearby outlet and thoughtful placement.

Several reviewers call it bulkier than average, which can be an issue on narrow door frames even though the larger button is easy to press.

Size impressions vary: the standard doorbell is called fairly large but manageable, while the Pro is repeatedly described as noticeably bigger and more likely to overhang smaller mounting blocks. Measurements and fit concerns are mentioned by reviewers doing replacements.

The doorbell is larger than many rivals due to its big battery, which can be a visual downside on the front door.