Galaxy S23 Ultra

Galaxy S23 Ultra is a phone powered by Android OS and released by Samsung on Friday, February 17, 2023.

Download Blisk application to test the cross-browser compatibility and responsive design on Galaxy S23 Ultra. This phone is ready to use standalone or simultaneously with lots of other popular devices.

Galaxy S23 Ultra
Viewport Size:
384px × 824px
Screen Size:
1440px × 3088px
Device Pixel Ratio:
DPR 3.75

Table of contents:

Overview and Dimensions

Galaxy S23 Ultra was released by Samsung on Friday, February 17, 2023 and is powered by Android OS. By default, the device is shipped with a web browser — Chrome. Device dimensions are 78.1×163.3×8.9 millimeters (3.07×6.43×0.35 inches)1. The device weighs 234 g.

Galaxy S23 Ultra has a Dynamic AMOLED 2X display with a 6.8-inch screen (114.7 cm2, 19.3:9 aspect ratio), and an approximately 89.9% screen-to-body ratio. The display is a touch screen, meaning that it supports touch events - interactions using a finger or stylus.

1 - Property is displayed as width × height × thickness.

Screen size, Viewport & Pixel Ratio

Galaxy S23 Ultra has a 6.8-inch screen with a screen size (resolution): 1440px × 3088px , 384px × 824px viewport1, and a CSS Pixel Ratio of 3.75.

1 - Property is displayed as width × height.

Screen size (resolution) is the number of physical pixels present on a screen.

Viewport or Viewport size is the number of software pixels (CSS pixels) present on a screen. Usually, viewport size displays as viewport width in pixels to viewport height in pixels.

Device Pixel Ratio (DPR) or CSS Pixel Ratio is the ratio between the physical pixels (screen size or resolution) and CSS pixels (viewport). Depending on device specification, one CSS pixel can equal one or mode physical pixels. Modern devices have screens with high pixel density resulting in the difference between screen size (resolution) and viewport.

Summary:
Screen Size (Resolution) = Viewport size × Device Pixel Ratio.
Viewport size = Screen Size (Resolution) / Device Pixel Ratio.
CSS Pixel Ratio = Screen Size (Resolution) / Viewport size.

Key points for development and testing

Before you start web development or testing, check that the web application supports a responsive viewport by using a viewport meta tag:

You can inspect this tag in the head section of an HTML document on Galaxy S23 Ultra right in the Blisk app. If this viewport tag is missing, the web application will not be responsive and will overflow the screen, hiding the content from users and leading to a bad user experience.

The form factor of the device represents its primary orientation as a portrait. Landscape orientation is popular on Galaxy S23 Ultra as well and should be seriously considered when you develop or test web applications on any mobile.

You also need to consider that the users will manipulate your web application on Galaxy S23 Ultra with a finger and stylus because this device has a touch screen that supports touch events. It is important to remember, that users may interact with multiple fingers (multi-touch) and gestures: single tap, multi-tap, swipe, pinch, stretch, zoom, etc. The users are highly likely to use gestures on small touch screens because of seamless interaction and great user experience.

CSS Media Query

Use the CSS Media Queries below to apply custom CSS properties for Galaxy S23 Ultra and devices with the same screens:

Galaxy S23 Ultra Media Query for min-width:

Galaxy S23 Ultra Media Query for min-height:

Galaxy S23 Ultra Media Query for landscape orientation:

Galaxy S23 Ultra Media Query for portrait orientation:

Galaxy S23 Ultra Media Query with device pixel ratio:

Launch device in Blisk application

Galaxy S23 Ultra is ready to use in the Blisk app, where you can develop web applications and test cross-browser compatibility, use this phone as a standalone device or simultaneously with other devices. Getting started with Blisk...

  1. Download the latest version.
  2. Launch the Developer Mode from the Toolbar (screenshot below).
  3. Click Device Manager (screenshot below).
  4. Select Galaxy S23 Ultra from the list.
  5. Click Launch Devices.

Launch device from Command prompt or Terminal

You can launch Galaxy S23 Ultra in the Blisk app from Command prompt (Windows) or Terminal (macOS or Linux) to develop web applications and test cross-browser compatibility on a standalone device or simultaneously with other devices. Learn more...

  1. Download the latest version.
  2. Launch the Developer Mode from the Toolbar.
  3. Click Menu: Device Set ➜ Share Set.
  4. Select Command and click Next.
  5. Copy the generated command.
  6. Launch Command prompt or Terminal, paste the command, and execute it.

Specification (Summary)

Release DateFriday, February 17, 2023
VendorSamsung
Device Typephone
Operating SystemAndroid
DisplayDynamic AMOLED 2X, 114.7 cm2, 19.3:9, ~89.9% screen-to-body ratio
Screen Size (Resolution) Width1440px
Screen Size (Resolution) Height3088px
Viewport Width384px
Viewport Height824px
CSS Pixel Ratio3.75
Display Size6.8-inch
Pixels Per Inch500 PPI
Dimensions (mm)78.1 mm × 163.3 mm × 8.9 mm
Dimensions (inch)3.07 inch × 6.43 inch × 0.35 inch
Device Weight234 g
Galaxy S23 Ultra

Galaxy S23 Ultra

is ready to use for
web development, testing, marketing, SEO needs

App for Windows, macOS, Linux

With Blisk app, you can:
  • Develop responsive web applications for mobiles, tablets, and desktops
  • Test cross-browser compatibility for mobiles, tablets, and desktops
  • Test touch events, simulate medium or slow Internet connection
  • Debug and measure performance with Developer Tools