The Samsung Galaxy S21+ features a 6.7-inch Dynamic AMOLED 2X display, which is a high-quality OLED panel. Here’s a breakdown of the display specifications and features:

1. Display Size: 6.7 inches (measured diagonally).
2. Type: Dynamic AMOLED 2X, which offers improved brightness, color accuracy, and contrast ratios compared to regular AMOLED panels.
3. Resolution: 2400 x 1080 pixels, providing a pixel density of 394 ppi (pixels per inch).
4. Refresh Rate: Supports 120Hz refresh rate, which makes the display smoother when scrolling, gaming, or interacting with apps.
5. Peak Brightness: Can reach up to 1300 nits in peak brightness, ensuring excellent visibility even under bright sunlight.
6. HDR Support: HDR10+ certified, meaning the display can render high dynamic range (HDR) content with better contrast and more vibrant colors.
7. Color Accuracy: High color accuracy with a wide color gamut, offering deep blacks, vibrant colors, and crisp whites.
8. Screen Protection: Protected by Corning Gorilla Glass Victus, providing added durability against scratches and drops.
9. Always-on Display: The S21+ also supports an always-on display, where you can see notifications, time, and other essential information even when the screen is off.

This OLED panel, with its vibrant color output, deep blacks, and smooth 120Hz refresh rate, makes the Galaxy S21+ display one of the standout features of the device.