Samsung S90F OLED 4K Smart TV Review: The Mid-Range That Punches Up
The Samsung S90F sits in the middle of Samsung’s 2025 OLED lineup — above the S85F, below the flagship S95F — and that positioning matters. Mid-range in an OLED context still means self-emissive pixels, per-pixel light control, and contrast ratios no LCD backlight can approach. The question is what you give up relative to the top of the line, and whether the trade-off makes sense at the price. After extended use, the answer is mostly yes.
Picture Quality: The Core Case
The S90F’s panel type varies by size, and this is the first thing a buyer needs to understand. The 55-inch, 65-inch, and 77-inch configurations use a QD-OLED panel — quantum dot enhancement over an OLED substrate — while the 42-inch, 48-inch, and 83-inch models use a WOLED panel. QD-OLED produces more saturated color volume and higher peak brightness, which makes the 65-inch the preferred size for most living room deployments.
In practice, the QD-OLED panel delivers exactly what the technology promises: blacks that are genuinely black because unlit pixels emit nothing, and colors that remain vivid without the wash-out that plagues LED sets in bright content. Shadow detail in dark scenes is exceptional. HDR highlights pop against near-black surroundings in a way that creates perceived depth rather than simple brightness.
The NQ4 AI Gen3 processor handles upscaling duty. Standard HD content lands closer to native 4K than it has any right to, and the upscaling holds detail without producing the artificial sharpening artifacts that made early AI upscaling unconvincing.
Glare Handling
Samsung’s anti-glare coating on the S90F is a genuine differentiator. OLED panels historically surrendered bright-room performance to LED competitors because the glass surface reflected ambient light directly onto a panel that couldn’t crank brightness high enough to compensate. The S90F addresses this. Rooms with significant window exposure that would have rendered a previous-generation OLED unwatchable during the day present no meaningful problem here. The coating diffuses rather than reflects, and the panel’s brightness ceiling is high enough to maintain image quality in moderately lit environments.
Gaming and Motion
Input lag in game mode is low enough that the S90F functions as a serious gaming monitor at scale. HDMI 2.1 ports support 4K at 120Hz, and the motion handling in high-refresh content — both games and sports — avoids the artificial smoothing that makes motion-interpolation modes look like soap opera video. The panel’s response time characteristic of OLED technology means motion blur is intrinsically lower than any LCD alternative.
Smart Platform: Tizen and Samsung Vision AI
The Tizen OS platform is responsive. App installation is straightforward, streaming services load quickly, and the interface navigates without lag. The Samsung Vision AI features — automatic picture optimization, object-based processing — function as advertised, though buyers who prefer manual calibration will find the filmmaker mode a more reliable baseline.
One consistent piece of user feedback worth noting: the solar remote is minimal to the point of inconvenience. Input switching requires menu navigation rather than a dedicated button, which adds steps to a routine action. A third-party universal remote solves this at low cost, but it’s a minor friction point that Samsung hasn’t addressed.
Connectivity
The S90F carries four HDMI ports, two USB inputs, a digital audio output, an RF input, a 3.5mm analog audio jack, and an Ethernet port. Wi-Fi 6 and Bluetooth 5.3 handle wireless connectivity. The one notable omission is ATSC 3.0 — the next-generation broadcast tuner standard — which is absent across Samsung’s 2025 lineup entirely.
Pricing and Sizing
Available from 42 inches to 83 inches. The 65-inch QD-OLED configuration at around $1,400–$1,700 depending on current sale pricing represents the value center of the lineup. The 77-inch is the ceiling for most rooms before the price premium starts to work against the proposition.
The Verdict
The Samsung S90F is not the most technically capable OLED television Samsung makes in 2025, but it is the one that most buyers should actually purchase. The QD-OLED panel in the mid-range sizes delivers picture quality that competes directly with sets costing significantly more. The anti-glare performance removes the traditional objection to OLED in real-world rooms. The smart platform is fast and complete. What it gives up relative to the S95F — marginally lower peak brightness, slightly reduced color volume ceiling — is irrelevant in most viewing conditions.
If the room has windows, if the content mix includes both film and sports, and if gaming is part of the use case, the S90F covers all three without compromise. That breadth of competence at a mid-range OLED price is what makes it a default recommendation.
Available at major electronics retailers. Check current pricing for your preferred size before purchase, as sale events regularly reduce the asking price from MSRP.