Samsung OLED S90H vs Samsung UHD NU7400

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OLED S90H compared with UHD NU7400

	SamsungOLED S90H	SamsungUHD NU7400
Overview
Released
Released	May 2026	March 2018
Display
Panel
Panel	OLED (42, 48, 55, 65, 83″), QD-OLED (77″)	LED LCD
Panel detail
Panel detail	WOLED (LG Display); the 77-inch is QD-OLED	Flat LED-backlit LCD. Samsung's investor report lists UHD 60 Hz; no panel subtype is assigned without exact-size maker evidence.
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
Refresh rate
Refresh rate	165 Hz (better)	60 Hz
HDR formats
HDR formats	HDR10, HDR10+, HLG	HDR10, HDR10+, HLG
HDR extras
HDR extras	HDR10+ Adaptive, HDR10+ Gaming and HDR10+ Advanced	–
Screen finish
Screen finish	Glare Free	–
Picture processing
Picture processing	4K AI Upscaling Pro, AI Motion Enhancer Pro, Real Depth Enhancer, Auto HDR Remastering Pro, Color Booster Pro, HDR Brightness Optimizer, AI Optimized / AI Customization	Dynamic Crystal Colour, UHD Dimming, Contrast Enhancer and Auto Motion Plus. PQI 1700 is a processing label; 60 Hz is separately documented in the maker investor report.
Picture modes
Picture modes	Filmmaker Mode, EyeComfort Mode; Smart Calibration (Basic)	–
Motion handling
Motion handling	Motion Xcelerator 165 Hz	–
Viewing angle
Viewing angle	Ultra Viewing Angle	–
Sizes
Sizes
Sizes	42, 48, 55, 65, 77, 83″	43, 50, 55, 65″
Largest size
Largest size	83″ (better)	65″
Gaming
HDMI ports
HDMI ports	4 (all HDMI 2.1 at 4K 120 Hz+) (better)	3 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rate
Variable refresh rate	HDMI VRR, FreeSync Premium, G-Sync Compatible	None
Auto low latency mode
Auto low latency mode	Yes	–
HDMI detail
HDMI detail	4K 165 Hz on HDMI 1/2/3/4; eARC; Anynet+ (HDMI-CEC)	Three HDMI inputs with ARC and HDMI-CEC, plus component and shared composite inputs.
Game features
Game features	FreeSync Premium Pro on 48–83″ (FreeSync Premium on 42″); Game Motion Plus, Dynamic Black EQ, Super Ultra Wide Game View, Game Bar, Mini Map Zoom, Surround Sound, HGiG, AI Auto Game Mode, AI Gaming Optimizer	Samsung specifies Auto Game Mode; the checked UK table does not identify the HDMI ALLM signalling mechanism, so that optional field is left unassigned.
Cloud gaming
Cloud gaming	Samsung Gaming Hub	–
Smart TV and sound
Smart TV platform
Smart TV platform	Tizen	Tizen
Processor
Processor	NQ4 AI Gen3 Processor	UHD Engine; quad-core smart processor
Speakers
Speakers	–	20 W, 2.0 channels
Dolby Atmos
Dolby Atmos	Yes	–
eARC
eARC	Yes	No
Wi-Fi
Wi-Fi	Wi-Fi 6E	Built-in Wi-Fi
Bluetooth
Bluetooth	5.3	–
Speaker detail
Speaker detail	42″ 20 W, 2ch; 48–83″ 40 W, 2.1ch; Object Tracking Sound Lite	Two-channel speakers with 20 W total output.
Audio features
Audio features	Q-Symphony, Active Voice Amplifier Pro, Adaptive Sound Pro, AI Sound Controller Pro, 360 Audio, Audio Pre-selection Descriptor	Dolby Digital Plus, Multiroom Link and Bluetooth audio; no DTS support is assigned from the checked maker table.
Voice assistants
Voice assistants	Bixby and Alexa built in, with far-field voice; works with Alexa and Google Assistant speakers	–
Casting
Casting	Apple AirPlay, Google Cast, screen and sound mirroring from Samsung phones	Mobile-to-TV mirroring, DLNA, TV-to-mobile mirroring, Wi-Fi Direct and SmartThings app support.
Software updates
Software updates	Security updates until at least 31 December 2031	Tizen 4.0 in Samsung's developer model-group table. Original app availability is not guaranteed today.
TV tuners
TV tuners	DVB-T2/C/S2 and analogue; CI+ 1.4 slot; HbbTV 2.0.4	DVB-T2/C/S2 digital and analogue tuners, with CI+ 1.4.
USB
USB	2 × USB-A	Two USB ports with media playback, recording and time shift.
Ethernet
Ethernet	1 × LAN	Ethernet LAN port.
Optical audio out
Optical audio out	1 × optical	One optical digital audio output.
Design and power
Size
Size	Without stand, 42″ 934.4 × 542.6 × 39.5 mm; 48″ 1069.3 × 619.9 × 39.6 mm; 55″ 1225.4 × 708.6 × 39.9 mm; 65″ 1444.3 × 831.7 × 39.9 mm; 77″ 1718.5 × 987.6 × 44.9 mm; 83″ 1851.0 × 1062.8 × 44.9 mm	Width × height × depth without stands: 43-inch 970.2 × 563.2 × 58.8 mm; 50-inch 1124.8 × 650.2 × 59.7 mm; 55-inch 1238.6 × 714.2 × 59.3 mm; 65-inch 1457.5 × 837.3 × 59.7 mm. Configuration weights exclude stands.
Stand
Stand	42″ Simple Blade; 48–83″ Simple Plus Blade (Laser Slim design)	V-shaped central stand. With-stand weights are 12.1, 16.5, 19.7 and 28.0 kg for 43, 50, 55 and 65 inches respectively.
In the box
In the box	–	TM1850A Smart Remote and TM1240A standard remote for UK/Ireland, batteries, power cable, manual and analogue breakout cable.
VESA pattern
VESA pattern	42″ 200 × 200 mm; 48–65″ 300 × 200 mm; 77″ and 83″ 400 × 300 mm	–
Power use
Power use	Typical/max, 42″ 52/195 W; 48″ 62/230 W; 55″ 76/380 W; 65″ 85/510 W; 77″ 112/660 W; 83″ 128/740 W; 0.5 W standby	–
Energy class
Energy class	42″ G; 48″ G; 55″ F; 65″ E; 77″ E; 83″ F	–
Colours
Colours	Graphite Black	–