How it works

True size on any screen

Screens differ in pixel density, so a website cannot know how big a millimetre is on yours. Calibration fixes that. You match an outline to a real bank card, which is always 85.60 by 53.98 mm under the ISO/IEC 7810 ID-1 standard, and the site stores the result for that screen. If you change screens, zoom level or devices, calibrate again.

Where the numbers come from

Every height, width, thickness, weight and screen size comes from the manufacturer’s published spec page or press release. Each phone page links to its source. Thickness is listed without the camera bump because that is how manufacturers measure it.

94 of 96 phones were checked against the maker’s own spec page or press release. The other 2 were checked against Google Fi’s spec pages, because the maker’s page could not be read. Phones whose numbers have not been checked are not listed.

How the outlines are drawn

Each outline is generated from the published dimensions, so it is exact in height and width. Corner shapes, screens and camera layouts are simplified drawings, not product photos, and are meant to help you tell the phones apart.

Spotted an error?

Phone makers sometimes revise specs after launch. If a number looks wrong, the source link on that phone’s page is the fastest way to check it.