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In Chrome DevTools, turn on the device toolbar, choose Mobile, then select a POCO X6 preset if your Chrome version offers one. If it does not, use Responsive and enter the dimensions and device pixel ratio (DPR) you want to emulate. Xiaomi lists the POCO X6’s portrait display resolution as 1220 × 2712 physical pixels, but that is not a verified CSS viewport size; for an exact match, check the viewport and DPR on an actual POCO X6.
Set up Chrome DevTools for a POCO X6-sized page
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Open the website in desktop Chrome.
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Open DevTools using More tools > Developer tools from Chrome’s menu, or the keyboard shortcut for your operating system.
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In DevTools, click Toggle device toolbar. Choose Mobile as the device type so Chrome emulates mobile rendering and touch behavior.
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Open the device dimensions menu. If POCO X6 is listed, select it. If it is not, choose Responsive and enter custom width, height, and DPR values. Chrome documents both custom mobile viewport dimensions and a separately configurable DPR in Device Mode.
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To emulate landscape, click Rotate. Check that the page has finished rendering in the orientation and viewport you intend to capture.
Choose dimensions without confusing screen pixels and CSS pixels
Xiaomi specifies the POCO X6 display as 2712 × 1220 pixels, with a 6.67-inch diagonal and a 20:9 aspect ratio. In portrait orientation, that is 1220 pixels wide by 2712 pixels high. These are the phone’s physical display specifications, not a confirmed Chrome CSS viewport. Xiaomi’s specification page does not give the POCO X6’s browser viewport or DPR. See Xiaomi’s POCO X6 specifications.
Chrome treats viewport size and DPR as separate emulation settings. DPR describes the relationship between physical display pixels and logical CSS pixels. Do not divide 1220 × 2712 by an assumed DPR and label the result the verified POCO X6 viewport.
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For an approximate visual preview
Use the POCO X6 preset if present. Otherwise, use a custom responsive viewport with a portrait 20:9 shape and choose a DPR appropriate to your preview. Treat this as an approximation unless you have confirmed those values against the phone.
For a closer device match
On an actual POCO X6, inspect the browser’s viewport dimensions and run window.devicePixelRatio in the browser console. Enter the observed width, height, and DPR in DevTools. If the website’s behavior depends on touch, browser chrome, fonts, or other hardware-specific factors, verify it on the handset as well.
Capture the visible viewport or the entire page
With the device toolbar enabled and the page in the intended state, open DevTools’ More options menu.
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Choose Capture screenshot to save what is currently visible inside the emulated phone viewport.
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Choose Capture a full size screenshot to include the document beyond the visible viewport. This captures the full page, not merely a phone-screen-sized image.
For a page that lazy-loads images or other content as you scroll, check that the content you need has loaded before capturing. A full-page image is useful for reviewing the complete document; use a viewport capture when you need to inspect what fits on the phone screen at one time.
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What DevTools emulation can and cannot verify
Device Mode simulates a mobile experience from your desktop; it does not run the page on POCO X6 hardware. Chrome recommends testing on an actual device when hardware behavior matters. Emulation is useful for responsive layout checks and repeatable screenshots, but it is not proof that every detail will match the handset.
Troubleshooting
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POCO X6 is not in the device list: choose Responsive and enter custom values. The named preset is optional, not required for emulation.
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The page looks too large or too small: check the CSS viewport dimensions and DPR separately. Do not treat Xiaomi’s physical resolution as a browser viewport.
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The saved image is only part of the page: use More options > Capture a full size screenshot rather than Capture screenshot.
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The screenshot does not match the real phone: validate the viewport and
window.devicePixelRatioon the POCO X6, and test on the handset when hardware-specific fidelity matters. -
The landscape image is still portrait: use DevTools’ Rotate control before taking the screenshot.
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Or skip the browser setup
For a screenshot API call instead of a local DevTools capture, ScreenshotNeo accepts a URL and returns an image or PDF. Use the ScreenshotNeo API documentation to configure output and capture options. The basic cURL request is:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com -o shot.webp
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ScreenshotNeo removes cookie banners, newsletter popups, and chat widgets before capture; bot checks, blank pages, and failed loads are not billed. Its MCP server lets AI agents take screenshots, and the free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000.
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