Description
About Device Information
Introduction
Device Information summarizes what this browser exposes about your device: viewport and screen size, device pixel ratio, touch hints, logical CPU count, approximate memory when available, and optional camera device details after you allow video. It is a web capability readout, not an OEM inventory or serial report.
What this tool does
It reads standard window, screen, and navigator signals, refreshes on resize, and can list videoinput devices plus track settings when camera permission allows. Network details stay brief with a pointer to Connection Information. Hardware and OS framing stay here; engine and feature matrices belong on Browser Information.
When to use it
Use it for support tickets, responsive layout bugs, and QA matrices when you need geometry and hardware hints together. Prefer Screen Resolution for layout-only sizes, Display Information for HDR or gamut hints, and Browser Information for engine identity.
How it works
CSS pixels and devicePixelRatio come from layout APIs. hardwareConcurrency is a logical processor hint, often clamped. deviceMemory, when present, is a coarse GiB bucket (usually Chromium). Camera enumeration uses the same media APIs as Webcam Test, scoped here as hardware context. No mic or clipboard prompt is required for the basic hub.
Step-by-step instructions
- Open Device Information on the device and browser where the issue appears.
- Note viewport, screen size, and DPR at 100% zoom.
- Scan concurrency, touch, memory, and any camera rows you need.
- Copy only the fields for your ticket; open sibling tools for deeper single-topic notes.
Common problems
Zoom above 100%, DevTools emulation, mobile URL bars, and dual-monitor DPI mixes often look “wrong.” Missing memory or battery rows are normal on Safari and Firefox. Marketing 4K labels may not match CSS pixels under OS scaling.
Privacy explanation
Values are shown locally from APIs any page can read. DeviceHub does not upload a hardware fingerprint for ads. Share only what a ticket needs; camera listing appears only after you grant video access.