Dell S3221QS Computer Monitor 80 cm (31.5″) 3840 x 2160 pixels 4K Ultra HD LCD

Display diagonal: 80 cm (31.5″)
Display resolution: 3840 x 2160 pixels
HD type: 4K Ultra HD
Native aspect ratio: 16:9
Display technology: LCD
Panel type: VA
Backlight type: LED
Touchscreen: No
Display brightness (typical): 300 cd/m²
Response time: 4 ms
Screen shape: Curved
Supported graphics resolutions: 3840 x 2160
Supported video modes: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 3840p
Aspect ratio: 16:9
Contrast ratio (typical): 3000:1
Maximum refresh rate: 60 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Colour: 1.073 billion colours
Response time (fast): 5 ms
Pixel pitch: 0,18159 x 0,18159 mm
Pixel density: 139 ppi
Display scan frequency (horizontal): 29 – 170 kHz
Display scan frequency (vertical): 40 – 60 Hz
Viewable size, horizontal: 69,7 cm
Viewable size, vertical: 39,2 cm

Performance

AMD Free Sync: Yes

AMD Free Sync refresh rate range: 40 – 60 Hz

Flicker-free technology: Yes

Low Blue Light technology: Yes