Samsung OLED S90D Series (2024) vs TCL Class S4 4K LED Smart TV (S4 / S450G)
The Samsung OLED S90D Series (2024) is the premium option here, offering a stunning display and high performance. With a peak brightness of approximately 1200 nits, it shines for HDR content and gaming, making it a worthy upgrade for enthusiasts. On the flip side, if you're on a budget, the TCL Class S4 4K LED Smart TV (S4 / S450G) delivers decent performance with a 60Hz refresh rate. However, its low peak brightness of around 250 nits means HDR content lacks that wow factor, especially in bright rooms. Key specs: Refresh: 144 Hz vs 60 Hz and HDMI: 4 ports vs 3 ports.
Why compare these? The Samsung OLED S90D Series (2024) (high-end) and TCL Class S4 4K LED Smart TV (S4 / S450G) (budget-friendly) represent different approaches to tvs. While they may appeal to different budgets, many buyers consider both options. This 2026 comparison helps you decide if the differences justify the price gap.
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How We Compare These Products
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Sources Checked
Official specifications, Retailer ratings, Manufacturer documentation, Buyer feedback.
Decision Factors
We weigh panel technology, contrast, brightness, HDR support, gaming features, size value, and smart platform.
Editorial Standard
Hands-on notes are labeled when available; otherwise analysis is based on documented specs and buyer evidence.
Key Differences at a Glance
| Aspect | Samsung OLED | TCL Class |
|---|---|---|
| User Rating | 4★ (1,047 reviews) | ✓4.5★ (1,771 reviews) |
| Top Strength | Perfect black levels and infinite contrast (all sizes) | Excellent native contrast ratio produces deep blacks (VA panel) |
| Main Drawback | No Dolby Vision support (Samsung remains exclusive to HDR10+) | Low peak brightness (~250 nits) means HDR content lacks 'pop' |
| Market Position | ✓Premium | Budget |
Samsung OLED S90D Series (2024)
42" / 48" / 55" / 65" / 77" / 83"
4K (3,840 x 2,160)
QD-OLED (55"/65"/77"); WOLED (42"/48"/83") – US Market standard distribution
144 Hz native (PC); 120 Hz (Consoles)
TCL Class S4 4K LED Smart TV (S4 / S450G)
43" / 50" / 55" / 58" / 65" / 75" / 85"
4K (2160p / 3840 x 2160)
LED LCD (Direct-lit LED backlight; typically VA panel)
60 Hz native (Motion Rate 120)
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Expand
Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: Samsung OLED S90D Series (2024) vs TCL Class S4 4K LED Smart TV (S4 / S450G)
Samsung OLED S90D Series (2024)
TCL Class S4 4K LED Smart TV (S4 / S450G)
| Criterion | Samsung OLED S90D Series (2024) | TCL Class S4 4K LED Smart TV (S4 / S450G) |
|---|---|---|
| Rating | ★4(1,047)Amazon | ★4.5(1,771)Amazon |
Screen Size | 42" / 48" / 55" / 65" / 77" / 83" | 43" / 50" / 55" / 58" / 65" / 75" / 85" |
Resolution | 4K (3,840 x 2,160) | 4K (2160p / 3840 x 2160) |
Screen Type | QD-OLED (55"/65"/77"); WOLED (42"/48"/83") – US Market standard distribution | LED LCD (Direct-lit LED backlight; typically VA panel) |
Refresh Rate | 144 Hz native (PC); 120 Hz (Consoles) | 60 Hz native (Motion Rate 120) |
Processor | NQ4 AI Gen2 Processor | Quad Core Processor 4K |
Upscaling | 4K AI Upscaling (20 neural networks) | 4K Upscaling |
HDR Formats | OLED HDR+, HDR10+, HLG (No Dolby Vision) | Dolby Vision, HDR10, HLG (No HDR10+) |
Peak Brightness | ≈1,200 nits (QD-OLED HDR 2% window); ≈700-800 nits (WOLED models) – varies by panel type | ≈250 nits (SDR/HDR Real Scene) – Limited brightness |
Local Dimming | No (Self-illuminating pixels) | No |
Contrast | Infinite (Perfect Black) | High native contrast (≈5000:1 to 8000:1 depending on size/unit) |
Color Gamut | ≈99% DCI-P3 (QD-OLED models); ≈96-98% DCI-P3 (WOLED models) | Standard (≈75% DCI-P3); No Wide Color Gamut |
HDMI Ports | 4x HDMI 2.1 (All ports support 4K@144Hz) | 3x HDMI |
HDMI 2 1 | Yes (4 ports) | No (HDMI 2.0 bandwidth on all ports); eARC supported on HDMI 1 |
VRR | Yes (FreeSync Premium, G-SYNC Compatible, VRR) | No |
Allm | Yes (Auto Game Mode) | Yes (Auto Low Latency Mode) |
Input Lag | ≈10 ms @ 60Hz; ≈5 ms @ 120Hz; ≈3 ms @ 144Hz | ≈11 ms @ 4K 60Hz (Game Mode) |
Audio Channels | 2.1 Channel | 2.0 Channel |
Audio Power | 40 W | 20 W (10W + 10W); 30 W (15W + 15W) on 85-inch model |
Audio Features | Dolby Atmos; Object Tracking Sound Lite (OTS Lite); Q-Symphony; Active Voice Amplifier Pro | Dolby Atmos pass-through; DTS Virtual:X; Dolby Digital Plus |
Smart Platform | Samsung Tizen OS (2024) | Google TV (Android TV) |
App Store | Samsung Smart Hub (Tizen); Samsung Gaming Hub | Google Play Store |
Voice Assistants | Alexa Built-in; Bixby; Works with Google Assistant | Google Assistant (Built-in); Works with Amazon Alexa |
Casting | Apple AirPlay 2; Multi View; Tap View | Chromecast Built-in; Apple AirPlay |
Connectivity | Wi-Fi 5 (802.11ac); Bluetooth 5.2; Ethernet (LAN); Optical Audio | Wi-Fi 5 (802.11ac); Bluetooth 5.0; Ethernet (LAN); Optical Audio Out |
Tuner | ATSC 3.0 (NextGen TV) / Clear QAM | ATSC 1.0 / Clear QAM |
Vesa | 300 x 200 mm (55"/65"); 400 x 300 mm (77"); 400 x 400 mm (83") | 200x200 mm (43"/50"/55"); 300x300 mm (58"); 400x300 mm (65"); 400x400 mm (75"); 600x400 mm (85") |
Dimensions With Stand | 65": 56.9 x 35.3 x 10.4 in; 77": 67.6 x 41.3 x 11.3 in | 55": 48.3 x 29.8 x 10.1 in; 65": 57.0 x 34.7 x 11.6 in; 75": 65.7 x 39.8 x 13.5 in |
Weight | 65": 49.6 lbs; 77": 88.2 lbs (with stand) | 55": 22.5 lbs; 65": 30.6 lbs; 75": 50.1 lbs (with stand) |
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Samsung OLED S90D Series (2024)
42" / 48" / 55" / 65" / 77" / 83"
4K (3,840 x 2,160)
QD-OLED (55"/65"/77"); WOLED (42"/48"/83") – US Market standard distribution
144 Hz native (PC); 120 Hz (Consoles)
NQ4 AI Gen2 Processor
4K AI Upscaling (20 neural networks)
Pros
- Perfect black levels and infinite contrast (all sizes)
- QD-OLED models (55"-77") deliver class-leading color brightness and volume
Cons
- No Dolby Vision support (Samsung remains exclusive to HDR10+)
- Significant performance difference between QD-OLED and WOLED sizes
TCL Class S4 4K LED Smart TV (S4 / S450G)
43" / 50" / 55" / 58" / 65" / 75" / 85"
4K (2160p / 3840 x 2160)
LED LCD (Direct-lit LED backlight; typically VA panel)
60 Hz native (Motion Rate 120)
Quad Core Processor 4K
4K Upscaling
Pros
- Excellent native contrast ratio produces deep blacks (VA panel)
- Google TV interface is fast, modern, and app-rich
Cons
- Low peak brightness (~250 nits) means HDR content lacks 'pop'
- No local dimming to improve dark scene performance further
Which one is better?
The Samsung OLED S90D Series (2024) is the better buy for most people - its peak brightness of approximately 1200 nits crushes the TCL Class S4 4K LED Smart TV (S4 / S450G)'s 250 nits. That said, grab the TCL if you want to save money while still enjoying a smart TV experience.
Who should buy each?
Choose the Samsung OLED S90D Series (2024) if: you game frequently and need 144Hz refresh rate, you watch a lot of HDR content for vibrant colors, or you want the best picture quality available.
Choose the TCL Class S4 4K LED Smart TV (S4 / S450G) if: you want a budget-friendly option for casual viewing, you need a simple smart TV experience, or you're not into gaming and just want a decent screen. (60 Hz refresh, 3 ports hdmi)
Quality Seekers
Higher user rating (4.5★ vs 4★) indicates better overall satisfaction
→ Choose TCL Class
Safe Choice Buyers
More widely tested with 1,771 reviews vs 1,047
→ Choose TCL Class
Premium Buyers
Higher-tier option with more premium features and build quality
→ Choose Samsung OLED
Value Seekers
Better value proposition for buyers who don't need top-tier features
→ Choose TCL Class
Conclusion
We hope this comparison helps you buy with confidence. Both products are dependable; the right one depends on how you will use it.
Bottom line: The TCL Class S4 4K LED Smart TV (S4 / S450G) leads with a 4.5★ rating versus 4★. That said, Samsung OLED S90D Series (2024) could still be the right pick depending on your specific priorities.
Frequently Asked Questions
+Which is better: Samsung OLED S90D Series (2024) or TCL Class S4 4K LED Smart TV (S4 / S450G)?
Samsung OLED S90D Series (2024) is the better choice if you prioritize perfect black levels and infinite contrast (all sizes). TCL Class S4 4K LED Smart TV (S4 / S450G) wins if you value excellent native contrast ratio produces deep blacks (va panel). Both are rated highly (4★ vs 4.5★), so consider your specific needs and budget.
+What are the main differences between Samsung OLED S90D Series (2024) and TCL Class S4 4K LED Smart TV (S4 / S450G)?
Key differences: Samsung OLED S90D Series (2024) offers perfect black levels and infinite contrast (all sizes), while TCL Class S4 4K LED Smart TV (S4 / S450G) stands out with excellent native contrast ratio produces deep blacks (va panel). Consider that Samsung OLED S90D Series (2024) no dolby vision support (samsung remains exclusive to hdr10+). Meanwhile, TCL Class S4 4K LED Smart TV (S4 / S450G) low peak brightness (~250 nits) means hdr content lacks 'pop'. Check the detailed specs table above for a complete comparison.
+What should I prioritize when choosing between these tvs?
Focus on the features that matter most for your daily use. Samsung OLED S90D Series (2024) stands out for perfect black levels and infinite contrast (all sizes) and qd-oled models (55"-77") deliver class-leading color brightness and volume. TCL Class S4 4K LED Smart TV (S4 / S450G) excels at excellent native contrast ratio produces deep blacks (va panel) and google tv interface is fast, modern, and app-rich. Check the spec table above for the complete side-by-side breakdown.
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