How we build data sheets
Projector specs are hard to compare because brands measure different things in different ways. Our sheets follow ISO/IEC 21118 for structure and keep track of where every value came from and what it actually means.
The rules
- 01
Every number has a source
Each value links to the document it came from, numbered as a footnote on the sheet. Primary manufacturer documents come first; retailer listings are a last resort and are labelled as such.
- 02
Units are never converted across standards
ISO lumens, ANSI lumens, CVIA lumens and "LED lumens" are different measurements. We never compute one from another. Conversions happen only within a dimension: mm to inches, kg to lb, fL to nits.
- 03
Unknown is not "no"
If a manufacturer doesn't say whether a projector supports something, we show it as not stated, never as a "no". Sheets list the important specs a manufacturer left out.
- 04
Mode and conditions travel with the value
Brightness in Eco mode, noise at 1 m, input lag at 4K60: when the source says how a number was obtained, we keep it next to the number.
- 05
Every model has a product code
Each variant carries at least one code: a GTIN (UPC/EAN/JAN), the manufacturer part number or a SKU. Search any of them at /p/{code} to land on the right sheet.
- 06
Our URLs are ours
Model pages are named after the brand and model, never a retailer ID, so links stay stable when a store changes its listing.
Where a value came from
Every value has one of four bases.
- Rated
- What the manufacturer states for the shipping product, cited to their own spec page, PDF or manual. Most values are this. Shown without a tag.
- Preliminary
- An announced or pre-release figure: launch events, trade shows, crowdfunding pages. Tagged in amber, and re-checked when the projector ships.
- Measured
- Measured by an independent reviewer, with a link to the review. Kept next to the rated figure, never in place of it.
- Derived
- Computed by us from other values, such as zoom ratio from the throw range. Always labelled as computed.
Brightness
We record brightness under the standard the manufacturer used and say which one it is. An ISO 21118 figure is a production average that shipped units must reach at least 80% of. A figure with no stated standard is shown as a claim, not as lumens you can compare. Why lumens are so confusing
Projectors that aren't out yet
Announced and pre-order models get a sheet as soon as the manufacturer publishes specs, with every figure marked preliminary and the expected release date with how precise it is. When the projector ships we confirm or replace every preliminary value. Upcoming projectors
Reviews and videos
Each model page links to independent reviews and embeds review videos under the spec sheet. Measured figures from those reviews are shown alongside the manufacturer's and credited to the reviewer.
Corrections
Every change to a sheet is logged with a reason. When a manufacturer restates a figure, which happens most often with brightness, we record the old and new values. If you spot an error, search for the model and tell us; searches with no result are logged, and we use them to decide which projectors to add next.
How we make money
Some store links are affiliate links, and we may earn a commission when you buy through them. Which stores we link has no effect on the data, the order of results or which projectors we cover.
Open data
Every published sheet is available as JSON or CSV at /api/v1/models/{brand}/{model}.json, with sources included. The index lists them all.