📱Phone

Samsung Galaxy S21 Ultra

Samsung

Device Specifications

📐 Display Information

Viewport Size:412x915
Device Resolution:1440x3200
Screen Size:6.8"
Pixel Ratio:3.5x
Density PPI:515
CSS PPI:147

ℹ️ What is Viewport?

Viewport size (412x915) is the CSS pixel dimensions used in responsive web design and media queries. This is what developers see in browser developer tools.

Device resolution (1440x3200) is the actual number of physical pixels on the screen.

Pixel ratio (3.5x) means 3.5physical pixels = 1 CSS pixel. Higher ratios provide sharper displays.

📱 Media Query Breakpoints

@media (max-width: 412px)Portrait width breakpoint
@media (max-width: 915px)Portrait height breakpoint
@media (min-width: 413px)Above this device width

🔍 PPI Explanation

Density PPI:515

Physical pixels per inch (higher = sharper)

CSS PPI:147

Effective PPI for web development

Useful Links

🔍 Search Samsung Galaxy S21 Ultra on Google📱 View on GSMArena📋 Back to Devices List

📊 Viewport Comparison

DeviceViewportResolutionScreen SizePixel Ratio
Samsung Galaxy S21 Ultra412x9151440x32006.8"3.5x
iPhone X375x8121125x24365.8"3x

💡 Notes for Developers

Responsive Design: Use media queries based on viewport width (412px) for this device.
Pixel Density: This device has a 3.5x pixel ratio, meaning images should be provided in @2x or @3x resolutions.
Touch Targets: Minimum touch target size should be 44x44px for this screen density.
Typography: Base font size of 16px will appear at 147 PPI on this device.

🔗 View Other Devices

All Devices ListiPhone X DetailsSamsung Galaxy S23 Ultra