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2026 comparison
Updated Jan 16, 2026
|Sources: Amazon, Manufacturer

VIZIO Quantum Pro QLED 4K TV (2023) vs TCL Class S4 4K LED Smart TV (S4 / S450G)

VIZIO Quantum Pro QLED 4K TV (2023) vs TCL Class S4 4K LED Smart TV (S4 / S450G): which is the right fit? We cover performance, value, and use cases to make the call easier.

Ratings: 4.2★ vs 4.5★

As an Amazon Associate I earn from qualifying purchases.

VIZIO Quantum Pro QLED 4K TV (2023)
Screen Size:65" / 75"
Resolution:4K (3840 x 2160)
Screen Type:QLED LCD (IPS-type / ADS Panel)
Refresh Rate:120 Hz native (Supports up to 240Hz @ 1080p for PC)
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TCL Class S4 4K LED Smart TV (S4 / S450G)
Screen Size:43" / 50" / 55" / 58" / 65" / 75" / 85"
Resolution:4K (2160p / 3840 x 2160)
Screen Type:LED LCD (Direct-lit LED backlight; typically VA panel)
Refresh Rate:60 Hz native (Motion Rate 120)
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Comparison: VIZIO Quantum Pro QLED 4K TV (2023) vs TCL Class S4 4K LED Smart TV (S4 / S450G)

VIZIO Quantum Pro QLED 4K TV (2023)

VIZIO Quantum Pro QLED 4K TV (2023)

4.2(1,534)Amazon
TCL Class S4 4K LED Smart TV (S4 / S450G)

TCL Class S4 4K LED Smart TV (S4 / S450G)

4.5(1,708)Amazon
VIZIO Quantum Pro QLED 4K TV (2023)

VIZIO Quantum Pro QLED 4K TV (2023)

Rating:4.2(1,534)Amazon
Screen Size:65" / 75"
Resolution:4K (3840 x 2160)
Screen Type:QLED LCD (IPS-type / ADS Panel)
Refresh Rate:120 Hz native (Supports up to 240Hz @ 1080p for PC)
Processor:IQ Ultra+ Processor
Upscaling:Spatial Scaling Engine
HDR Formats:Dolby Vision, HDR10+, HDR10, HLG
Peak Brightness:≈1,000 nits (Marketed); ≈750-800 nits (HDR Real Scene tested)
Local Dimming:Yes (Active Full Array; 40 zones on 65"; 80 zones on 75")
Contrast:≈1,600:1 (Native) – Low native contrast due to IPS panel
Color Gamut:≈97% DCI-P3 (Quantum Color)
HDMI Ports:4x HDMI
HDMI 2 1:Partial (Only HDMI 3 supports 4K@120Hz; HDMI 1 is eARC but 4K@60Hz)
VRR:Yes (AMD FreeSync Premium Pro, HDMI Forum VRR; 48-120Hz)
Allm:Yes (Auto Low Latency Mode)
Input Lag:≈14 ms @ 60Hz; ≈6 ms @ 120Hz
Audio Channels:2.0 Channel
Audio Power:20 W (10W x 2)
Audio Features:DTS:X; DTS Virtual:X; Dolby Atmos (Passthrough); Bluetooth Headphone capable
Smart Platform:VIZIO Home (formerly SmartCast)
App Store:VIZIO Home (Cloud-based apps, no local store)
Voice Assistants:VIZIO Voice (Built-in to remote); Works with Alexa/Google/Apple Home
Casting:Apple AirPlay 2; Chromecast Built-in
Connectivity:Wi-Fi 6E (Tri-band 802.11ax); Bluetooth 5.2; Ethernet (LAN); USB 2.0
Tuner:ATSC 1.0 (Digital) / Clear QAM (No ATSC 3.0)
Vesa:400 x 300 mm (65"/75")
Dimensions With Stand:65": 56.9 x 35.5 x 12.7 in; 75": 65.7 x 40.5 x 13.4 in
Weight:65": 41.0 lbs; 75": 59.8 lbs (with stand)

✓ Pros:

  • Integrated Wi-Fi 6E (Tri-band) provides faster streaming speed than most competitors
  • IPS-type panel delivers wide viewing angles suitable for large group seating
  • High peak brightness (~800 nits real scene) combats glare effectively in bright rooms
  • Gaming port (HDMI 3) is separate from eARC port (HDMI 1), preserving functionality

✗ Cons:

  • Low native contrast causes blacks to appear gray in dark rooms (IPS characteristic)
  • Only one HDMI port supports 4K@120Hz (limiting for multi-console owners)
  • Local dimming zone count is low (40/80 zones), leading to noticeable blooming
  • VIZIO Home interface is heavy on ads and can feel sluggish compared to Google TV/Roku

As an Amazon Associate I earn from qualifying purchases.

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TCL Class S4 4K LED Smart TV (S4 / S450G)

TCL Class S4 4K LED Smart TV (S4 / S450G)

Rating:4.5(1,708)Amazon
Screen Size:43" / 50" / 55" / 58" / 65" / 75" / 85"
Resolution:4K (2160p / 3840 x 2160)
Screen Type:LED LCD (Direct-lit LED backlight; typically VA panel)
Refresh Rate:60 Hz native (Motion Rate 120)
Processor:Quad Core Processor 4K
Upscaling:4K Upscaling
HDR Formats:Dolby Vision, HDR10, HLG (No HDR10+)
Peak Brightness:≈250 nits (SDR/HDR Real Scene) – Limited brightness
Local Dimming:No
Contrast:High native contrast (≈5000:1 to 8000:1 depending on size/unit)
Color Gamut:Standard (≈75% DCI-P3); No Wide Color Gamut
HDMI Ports:3x HDMI
HDMI 2 1:No (HDMI 2.0 bandwidth on all ports); eARC supported on HDMI 1
VRR:No
Allm:Yes (Auto Low Latency Mode)
Input Lag:≈11 ms @ 4K 60Hz (Game Mode)
Audio Channels:2.0 Channel
Audio Power:20 W (10W + 10W); 30 W (15W + 15W) on 85-inch model
Audio Features:Dolby Atmos pass-through; DTS Virtual:X; Dolby Digital Plus
Smart Platform:Google TV (Android TV)
App Store:Google Play Store
Voice Assistants:Google Assistant (Built-in); Works with Amazon Alexa
Casting:Chromecast Built-in; Apple AirPlay
Connectivity:Wi-Fi 5 (802.11ac); Bluetooth 5.0; Ethernet (LAN); Optical Audio Out
Tuner:ATSC 1.0 / Clear QAM
Vesa:200x200 mm (43"/50"/55"); 300x300 mm (58"); 400x300 mm (65"); 400x400 mm (75"); 600x400 mm (85")
Dimensions With Stand: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:55": 22.5 lbs; 65": 30.6 lbs; 75": 50.1 lbs (with stand)

✓ Pros:

  • Excellent native contrast ratio produces deep blacks (VA panel)
  • Google TV interface is fast, modern, and app-rich
  • Supports Dolby Vision and Dolby Atmos (rare at this price point)
  • Very low input lag (~11ms) makes it decent for casual gaming

✗ Cons:

  • Low peak brightness (~250 nits) means HDR content lacks 'pop'
  • No local dimming to improve dark scene performance further
  • Narrow viewing angles (picture washes out from the side)
  • Limited to 60Hz with no VRR or HDMI 2.1 bandwidth for next-gen consoles

As an Amazon Associate I earn from qualifying purchases.

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Which one is better?

Looking at user satisfaction (TCL Class S4 4K LED Smart TV (S4 / S450G): 4.2★ vs VIZIO Quantum Pro QLED 4K TV (2023): 4.5★), TCL Class S4 4K LED Smart TV (S4 / S450G) pulls ahead. The gap is small—choose based on the priorities below.

Who should buy each?

Choose VIZIO Quantum Pro QLED 4K TV (2023) if:
- You want Integrated Wi-Fi 6E (Tri-band) provides faster streaming speed than most competitors, IPS-type panel delivers wide viewing angles suitable for large group seating
- Rating: 4.2★ (1534 reviews)

Choose TCL Class S4 4K LED Smart TV (S4 / S450G) if:
- You prefer Excellent native contrast ratio produces deep blacks (VA panel), Google TV interface is fast, modern, and app-rich
- Rating: 4.5★ (1708 reviews)

Conclusion

There is no wrong answer here. Focus on the features you will use daily and pick the model that aligns with them.

Frequently Asked Questions

+Which has better value?

VIZIO Quantum Pro QLED 4K TV (2023) excels if you value integrated wi-fi 6e (tri-band) provides faster streaming speed than most competitors. TCL Class S4 4K LED Smart TV (S4 / S450G) is better if you prioritize excellent native contrast ratio produces deep blacks (va panel). Pick based on your budget and daily use.

+Is this an independent review?

Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.

+Do newer models exist?

Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.

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