PC gamers and high frame rates
Every size runs 165 Hz VRR with 4K 165 Hz on all four HDMI ports, NVIDIA G-SYNC Compatible support, HGiG and the AI Gaming Optimizer.
Samsung 48" S90H OLED 4K Ultra HD HDR Smart TV (2026)
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48 in
Screen size
The screen size, measured diagonally in inches.
OLED
Display
The panel technology. OLED and QLED deliver richer contrast and colour than standard LED.
3840 x 2160 (4K UHD)
Resolution
The screen's pixel detail. 4K (Ultra HD) is the current standard for sharp, crisp images.
165 Hz VRR (100 Hz native)
Refresh rate
How many times the screen updates each second. Higher rates look smoother for sport and gaming.
At a glance
165 Hz at every size
the same 165 Hz VRR panel from 42 inches to 83 inches, with 4K 165 Hz on four HDMI ports
NQ4 AI Gen3 processor
runs 4K AI Upscaling Pro, AI Motion Enhancer Pro and Auto HDR Remastering Pro
Glare Free screen
the stronger anti-reflection grade Samsung fits, which keeps daylight and lamps off the picture
Self-illuminating OLED pixels
each pixel lights itself and switches fully off, with Ultra Viewing Angle for off-centre seats
Gaming suite
covers ALLM, VRR, Game Bar, HGiG, NVIDIA G-SYNC Compatible, AI Gaming Optimizer and Super Ultra Wide Game View
Laser Slim design
a four-sided bezel-less front in Graphite Black, with Wi-Fi 6E, Bluetooth 5.3 and eARC
At a glance
165 Hz at every size
the same 165 Hz VRR panel from 42 inches to 83 inches, with 4K 165 Hz on four HDMI ports
NQ4 AI Gen3 processor
runs 4K AI Upscaling Pro, AI Motion Enhancer Pro and Auto HDR Remastering Pro
Glare Free screen
the stronger anti-reflection grade Samsung fits, which keeps daylight and lamps off the picture
Self-illuminating OLED pixels
each pixel lights itself and switches fully off, with Ultra Viewing Angle for off-centre seats
Gaming suite
covers ALLM, VRR, Game Bar, HGiG, NVIDIA G-SYNC Compatible, AI Gaming Optimizer and Super Ultra Wide Game View
Laser Slim design
a four-sided bezel-less front in Graphite Black, with Wi-Fi 6E, Bluetooth 5.3 and eARC
48 in
Screen size
The screen size, measured diagonally in inches.
OLED
Display
The panel technology. OLED and QLED deliver richer contrast and colour than standard LED.
3840 x 2160 (4K UHD)
Resolution
The screen's pixel detail. 4K (Ultra HD) is the current standard for sharp, crisp images.
165 Hz VRR (100 Hz native)
Refresh rate
How many times the screen updates each second. Higher rates look smoother for sport and gaming.
Samsung · S90H OLED · 2026
48" S90H OLED 4K Ultra HD HDR Smart TV
An OLED range that runs 165 Hz VRR at every size from 42 to 83 inches, with a Glare Free screen and the NQ4 AI Gen3 processor.
48"Screen size
4K Ultra HDResolution
GEnergy rating
The headline here is refresh rate, and it holds all the way down the range: 165 Hz VRR on a 100 Hz native panel, at every size from 42 inches to 83 inches, with all four HDMI ports accepting 4K 165 Hz. Most OLED lines reserve their fastest panel for the larger screens. This one does not.
Behind the panel sits the NQ4 AI Gen3 processor, a generation ahead of the S85H, running 4K AI Upscaling Pro, AI Motion Enhancer Pro and Auto HDR Remastering Pro. Samsung rates the screen finish as Glare Free, its stronger anti-reflection grade, which matters in a room with windows behind the sofa. Ultra Viewing Angle handles the seats at the ends.
A 165 Hz OLED at 42 inches is unusual, and it is the clearest reason to choose the S90H over the range below it.
About this size: The 48 inch carries the OLED HDR engine rather than the OLED HDR+ used from 55 inches upwards, so do not repeat the HDR+ claim on this size. Everything else matches the larger sizes, including 40 W 2.1ch audio, FreeSync Premium Pro and the full 165 Hz panel.
Ideal For
Bright rooms that defeat other OLEDs
Glare Free is Samsung's stronger screen treatment, reserved for the higher OLED models, and it is what you want in a room with daylight or lamps behind the seating.
Desk setups and smaller rooms
A 42 inch OLED that keeps the full 165 Hz panel suits a desk or a small room, and it takes a 200 x 200 VESA mount rather than a larger pattern.
Key Features
165 Hz at every size
the same 165 Hz VRR panel from 42 inches to 83 inches, with 4K 165 Hz on four HDMI ports
NQ4 AI Gen3 processor
runs 4K AI Upscaling Pro, AI Motion Enhancer Pro and Auto HDR Remastering Pro
Glare Free screen
the stronger anti-reflection grade Samsung fits, which keeps daylight and lamps off the picture
Self-illuminating OLED pixels
each pixel lights itself and switches fully off, with Ultra Viewing Angle for off-centre seats
Gaming suite
covers ALLM, VRR, Game Bar, HGiG, NVIDIA G-SYNC Compatible, AI Gaming Optimizer and Super Ultra Wide Game View
Laser Slim design
a four-sided bezel-less front in Graphite Black, with Wi-Fi 6E, Bluetooth 5.3 and eARC
165 Hz, and no size penalty
Refresh rate is usually where a range gets thinned out at the bottom. Here it does not: the 42 inch runs the same 165 Hz VRR panel as the 83 inch, on a 100 Hz native refresh, and all four HDMI inputs accept 4K 165 Hz rather than reserving the fast port for one input. Paired with ALLM, VRR, Game Bar, HGiG and NVIDIA G-SYNC Compatible support, it makes the small sizes genuinely useful as gaming screens rather than second sets.
Glare Free and the Gen3 processor
OLED has always been strongest in a dark room. Glare Free is Samsung's stronger anti-reflection grade, one step above the Anti Reflection finish on the range below, and it is aimed squarely at that weakness. The NQ4 AI Gen3 processor does the rest: 4K AI Upscaling Pro, AI Motion Enhancer Pro for fast sport and Auto HDR Remastering Pro, with Real Depth Enhancer and Color Booster Pro on colour and contrast. Filmmaker Mode remains for anyone who wants none of it.
Sound, smart platform and sizes
Audio specification changes with the size, so check the note against the model you are buying, but Dolby Atmos, Object Tracking Sound Lite, Q-Symphony and AI Sound Controller Pro are common to the range. Tizen runs apps and live television with Vision AI Companion, Now Brief and seven years of OS upgrades. Connections are four HDMI with eARC, two USB-A, optical out, Ethernet, Wi-Fi 6E and Bluetooth 5.3, all on the set itself.
Specifications
- Resolution3840 x 2160 (4K UHD)
- Product typeOLED
- Panel / contrast technologyOLED, self-illuminating pixels
- Anti reflectionGlare Free
- Refresh rate165 Hz VRR (100 Hz native)
- ProcessorNQ4 AI Gen3 Processor
- Upscaling4K AI Upscaling Pro
- HDR formatsHDR10+ (Adaptive / Gaming / Advanced)
- Motion technologyMotion Xcelerator 165 Hz, AI Motion Enhancer Pro
- Viewing angleUltra Viewing Angle
- Contrast enhancer / colourReal Depth Enhancer, Color Booster Pro, Auto HDR Remastering Pro
- Smart platformTizen Smart TV (7 Years OS Upgrade)
- Voice assistantsBixby; Alexa (GB, DE, FR, IT, ES, AT, IE)
- TunerDVB-T2CS2, analogue tuner, CI+ (1.4)
- HDMI4 x HDMI, 4K 165 Hz on HDMI 1/2/3/4, eARC
- USB2 x USB-A
- WirelessWi-Fi 6E, Bluetooth 5.3
- Other connections1 x Ethernet (LAN), 1 x digital optical audio out, RF in, 1 x CI slot
- Audio featuresDolby Atmos, Object Tracking Sound Lite, Q-Symphony, Adaptive Sound Pro, Active Voice Amplifier Pro, AI Sound Controller Pro
- Gaming featuresAuto Game Mode (ALLM), VRR, Game Bar, HGiG, NVIDIA G-SYNC Compatible, AI Gaming Optimizer, Super Ultra Wide Game View
- DesignLaser Slim, 4 bezel-less, Graphite Black
- Screen Size48 in
- Energy RatingG
- Annual Energy Use (SDR)86 kWh/1000h
- Dimensions with Stand1069.3 x 685.9 x 265.2
- Dimensions without Stand1069.3 x 619.9 x 39.6
- Weight with Stand11.9 kg
- VESA300 x 200
- Audio Output40 W
- Audio Channels2.1ch
The Verdict
Why it stands out
- 165 Hz VRR on all six sizes
- Glare Free screen for bright rooms
- NQ4 AI Gen3 processor with 4K AI Upscaling Pro
- Four HDMI ports at 4K 165 Hz
- Self-illuminating pixels with Ultra Viewing Angle
Worth knowing
- The 42 inch is the odd one out: 20 W two-channel sound with no subwoofer channel, FreeSync Premium instead of Premium Pro, and a 200 x 200 VESA pattern.
- Samsung lists the HDR engine as OLED HDR on the 42 and 48 inch, and the stronger OLED HDR+ only from 55 inches upwards.
- Energy class is not consistent with size: the 83 inch is rated a step below the 65 and 77 inch, so check the label for the size you order.
What’s in the Box
The carton holds the television, its stand and fixings, the remote control, a power cable and the printed guides; there is no separate connection box, so every cable runs to the panel.
Model: QE48S90HAEXXU. Specifications are based on Samsung’s published UK/Ireland product information for this exact model and may be updated by the manufacturer.
Resolution
3840 x 2160 (4K UHD)
Product type
OLED
Panel / contrast technology
OLED, self-illuminating pixels
Anti reflection
Glare Free
Refresh rate
165 Hz VRR (100 Hz native)
Processor
NQ4 AI Gen3 Processor
Upscaling
4K AI Upscaling Pro
HDR formats
HDR10+ (Adaptive / Gaming / Advanced)
Motion technology
Motion Xcelerator 165 Hz, AI Motion Enhancer Pro
Viewing angle
Ultra Viewing Angle
Contrast enhancer / colour
Real Depth Enhancer, Color Booster Pro, Auto HDR Remastering Pro
Smart platform
Tizen Smart TV (7 Years OS Upgrade)
Voice assistants
Bixby; Alexa (GB, DE, FR, IT, ES, AT, IE)
Tuner
DVB-T2CS2, analogue tuner, CI+ (1.4)
HDMI
4 x HDMI, 4K 165 Hz on HDMI 1/2/3/4, eARC
USB
2 x USB-A
Wireless
Wi-Fi 6E, Bluetooth 5.3
Other connections
1 x Ethernet (LAN), 1 x digital optical audio out, RF in, 1 x CI slot
Audio features
Dolby Atmos, Object Tracking Sound Lite, Q-Symphony, Adaptive Sound Pro, Active Voice Amplifier Pro, AI Sound Controller Pro
Gaming features
Auto Game Mode (ALLM), VRR, Game Bar, HGiG, NVIDIA G-SYNC Compatible, AI Gaming Optimizer, Super Ultra Wide Game View
Design
Laser Slim, 4 bezel-less, Graphite Black
Screen Size
48 in
Energy Rating
G
Annual Energy Use (SDR)
86 kWh/1000h
Dimensions with Stand
1069.3 x 685.9 x 265.2
Dimensions without Stand
1069.3 x 619.9 x 39.6
Weight with Stand
11.9 kg
VESA
300 x 200
Audio Output
40 W
Audio Channels
2.1ch
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| Specification | Samsung 48" S90H OLED 4K Ultra HD HDR Smart TV (2026) | Samsung 50" QN70H Neo QLED 4K Ultra HD HDR Smart TV (2026) | Samsung 43" The Frame 4K Ultra HD HDR Smart TV (2026) | LG UR78 86" 4K UHD LED Smart TV - Black |
|---|---|---|---|---|
| Screen size | 43-54 inch | 43-54 inch | 43-54 inch | 85 inch and over |
| Energy rating | G | E | F | F |
At a glance
165 Hz at every size
the same 165 Hz VRR panel from 42 inches to 83 inches, with 4K 165 Hz on four HDMI ports
NQ4 AI Gen3 processor
runs 4K AI Upscaling Pro, AI Motion Enhancer Pro and Auto HDR Remastering Pro
Glare Free screen
the stronger anti-reflection grade Samsung fits, which keeps daylight and lamps off the picture
Self-illuminating OLED pixels
each pixel lights itself and switches fully off, with Ultra Viewing Angle for off-centre seats
Gaming suite
covers ALLM, VRR, Game Bar, HGiG, NVIDIA G-SYNC Compatible, AI Gaming Optimizer and Super Ultra Wide Game View
Laser Slim design
a four-sided bezel-less front in Graphite Black, with Wi-Fi 6E, Bluetooth 5.3 and eARC
From the Knowledge Centre
Guides and advice related to this product
Energy efficiency
Energy class GEU scale A to G
Product information
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