Apple Studio Display (21-inch CRT, 1999) vs Apple Studio Display XDR

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Studio Display (21-inch CRT, 1999) compared with Studio Display XDR

	AppleStudio Display (21-inch CRT, 1999)	AppleStudio Display XDR
Overview
Released
Released	January 1999	March 2026
Display
Screen size
Screen size	19.8″	27″
Resolution
Resolution	–	5120 × 2880 (5K)
Sharpness
Sharpness	–	218 pixels per inch
Panel
Panel	CRT (Nominal 21-inch Sony Trinitron aperture-grille CRT with a 19.8-inch viewable image; 0.25–0.27 mm variable aperture grille pitch. Vertically flat screen, without a fixed native pixel matrix.)	Mini-LED (5K Retina XDR (IPS LCD, oxide TFT))
Refresh rate
Refresh rate	–	120 Hz
Brightness (typical)
Brightness (typical)	–	1,000 nits
HDR peak brightness
HDR peak brightness	–	2,000 nits
Colour range
Colour range	–	P3 + Adobe RGB, 81% BT.2020
Dimming zones
Dimming zones	–	2,304
Screen finish
Screen finish	–	Glossy
Shape
Shape	–	Flat
Adaptive sync
Adaptive sync	–	VESA AdaptiveSync
Colour depth
Colour depth	–	1 billion colours
Colour modes
Colour modes	–	Apple XDR Display (P3-2,000 nits), Apple XDR Display (P3 + Adobe RGB-2,000 nits), HDR Video (P3-ST 2084), HDTV Video (BT.709-BT.1886), NTSC Video (BT.601 SMPTE-C), PAL and SECAM Video (BT.601 EBU), Digital Cinema (P3-DCI), Digital Cinema (P3-D65), Design and Print (P3-D50), Design and Print (Adobe RGB-D50), Photography (P3-D65), Photography (Adobe RGB-D65), HDR Photography (P3-D65), Internet and Web (sRGB), Medical Imaging (DICOM-350 nits), Medical Imaging (DICOM-600 nits); custom reference modes
HDR detail
HDR detail	–	2,000 nits peak across 40% of the screen and 1,000 nits full-screen sustained (below 25 °C); HDR reference modes use PQ (SMPTE ST 2084)
Variable refresh range
Variable refresh range	–	47–120 Hz (Adaptive Sync); fixed 47.95, 48, 50, 59.94, 60 and 120 Hz
Viewing angles
Viewing angles	–	89° left, right, up and down
Pixel pitch
Pixel pitch	Variable 0.25–0.27 mm aperture grille pitch	–
Supported signal modes
Supported signal modes	Supports 1600 × 1200, 1280 × 1024 and 1024 × 768 at up to 85 Hz; 1152 × 870 and 832 × 624 at up to 75 Hz. Horizontal scan 31–107 kHz; vertical scan 48–120 Hz. These are selectable CRT signal modes, not a fixed native matrix or one native refresh rate.	–
Screen coating
Screen coating	Antireflective and antistatic screen coating	–
Calibration
Calibration	Internal measurement system adjusts the electron beam to maintain factory calibration; stores ColorSync profiles. Includes an ambient-light tool, variable 4100–9300 K white-point selection and gamma-curve adjustment.	Individually factory calibrated (Apple CMF 2026); Visual Fine-Tune and Fine-Tune Calibration in Pro Display Calibrator
Connections
Video inputs
Video inputs	VGA	Thunderbolt 5
USB-C charging
USB-C charging	None	Up to 140 W (better)
USB ports
USB ports	4 × USB-A	Thunderbolt 5, 2 × USB-C
Ethernet
Ethernet	–	No
Speakers
Speakers	–	Yes
Webcam
Webcam	–	12MP Center Stage with Desk View
USB-C detail
USB-C detail	–	Upstream Thunderbolt 5 (up to 120 Gb/s) with 140 W host charging
Daisy chaining
Daisy chaining	–	Downstream Thunderbolt 5 port daisy-chains more displays; up to four with certain Mac configurations
USB hub detail
USB hub detail	–	1 × Thunderbolt 5 downstream (up to 120 Gb/s), 2 × USB-C (up to 10 Gb/s) for peripherals, storage and networking
Speaker detail
Speaker detail	–	Six speakers with force-cancelling woofers; wide stereo; Spatial Audio with Dolby Atmos
Webcam detail
Webcam detail	–	Three-mic array with directional beamforming; camera features and firmware updates need a Mac
Other connections
Other connections	15-pin mini D-Sub VGA video connector with supplied VGA-to-Macintosh adaptor	–
Design
Stand adjusts
Stand adjusts	–	Height, tilt
VESA mount
VESA mount	–	Yes
Weight with stand
Weight with stand	35 kg	8.5 kg
Height adjustment
Height adjustment	–	105 mm
Tilt
Tilt	–	−5° to +25°
Pivot
Pivot	–	Landscape only on the stand; portrait with the VESA mount adapter
VESA pattern
VESA pattern	–	100 × 100 mm (VESA mount adapter option)
Size with stand
Size with stand	51.1 × 56.6 × 55 cm (width × height × depth), January 1999 Blueberry datasheet; later Graphite enclosure dimensions differ	62.3 × 21.4 × 47.8–58.3 cm (W × D × H)
Size without stand
Size without stand	–	62.3 × 3.3 × 36.2 cm with VESA mount adapter (W × D × H)
Weight without stand
Weight without stand	–	6.3 kg with VESA mount adapter
Controls
Controls	Power, brightness and contrast; compatible Mac software supplies geometry, convergence, degauss, white-point and calibration adjustments	–
Colours
Colours	Translucent Blueberry and white enclosure	–
Power and support
Power use
Power use	Maximum 180 W operating; less than 30 W standby; less than 5 W when the computer is in energy-saving mode	–
Power supply
Power supply	90–264 V AC, single-phase 47–63 Hz; mains frequency is separate from display refresh	100–240 V AC, 50–60 Hz, single phase
Software
Software	Maker announced the new Studio Display family on 5 January 1999; January retail precision is used because a distinct first-sale day is unconfirmed. January M6204LL/A datasheet requires the new Power Macintosh G3 with built-in USB and Mac OS 8.0 or later. Brightness and contrast ratio are unpublished and omitted; no pixel density is assigned to this CRT.	Needs an Apple silicon Mac with macOS Tahoe 26.3.1 or later, or an iPad with iPadOS 26.3.1 or later
Certifications
Certifications	–	ENERGY STAR
Warranty
Warranty	–	1-year limited warranty and 90 days of complimentary technical support from Apple
In the box
In the box	Display, Apple Displays software, VGA-to-Macintosh adaptor, power cord, ambient-light tool and setup guide	Studio Display XDR, Thunderbolt 5 Pro Cable (1 m)