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2026 comparison
Updated Jan 16, 2026
|Sources: Amazon, ManufacturerLG OLED evo C4 Series (2024) vs Samsung OLED S90D Series (2024)
Choosing between LG OLED evo C4 Series (2024) and Samsung OLED S90D Series (2024) can be tricky. Both are excellent, but they serve different priorities. This guide highlights what matters for US shoppers.
Ratings: 4.5★ vs 4★
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LG OLED evo C4 Series (2024)
★4.5
(1,530)•Amazon
Screen Size:42" / 48" / 55" / 65" / 77" / 83"
Resolution:4K (3840 x 2160)
Screen Type:WOLED (OLED evo)
Refresh Rate:144 Hz native (PC); 120 Hz (Consoles)
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Samsung OLED S90D Series (2024)
★4
(953)•Amazon
Screen Size:42" / 48" / 55" / 65" / 77" / 83"
Resolution:4K (3,840 x 2,160)
Screen Type:QD-OLED (55"/65"/77"); WOLED (42"/48"/83") – US Market standard distribution
Refresh Rate:144 Hz native (PC); 120 Hz (Consoles)
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Comparison: LG OLED evo C4 Series (2024) vs Samsung OLED S90D Series (2024)
LG OLED evo C4 Series (2024)
★4.5(1,530)Amazon
Samsung OLED S90D Series (2024)
★4(953)Amazon
| Criterion | LG OLED evo C4 Series (2024) | Samsung OLED S90D Series (2024) |
|---|---|---|
| Rating | ★4.5(1,530)Amazon | ★4(953)Amazon |
Screen Size | 42" / 48" / 55" / 65" / 77" / 83" | 42" / 48" / 55" / 65" / 77" / 83" |
Resolution | 4K (3840 x 2160) | 4K (3,840 x 2,160) |
Screen Type | WOLED (OLED evo) | QD-OLED (55"/65"/77"); WOLED (42"/48"/83") – US Market standard distribution |
Refresh Rate | 144 Hz native (PC); 120 Hz (Consoles) | 144 Hz native (PC); 120 Hz (Consoles) |
Processor | α9 AI Processor 4K Gen7 | NQ4 AI Gen2 Processor |
Upscaling | α9 AI Super Upscaling 4K | 4K AI Upscaling (20 neural networks) |
HDR Formats | Dolby Vision, HDR10, HLG (No HDR10+) | OLED HDR+, HDR10+, HLG (No Dolby Vision) |
Peak Brightness | ≈950-1,000 nits (55"+ HDR 2% window); ≈800 nits (42"/48" models) | ≈1,200 nits (QD-OLED HDR 2% window); ≈700-800 nits (WOLED models) – varies by panel type |
Local Dimming | No (Self-illuminating pixels) | No (Self-illuminating pixels) |
Contrast | Infinite (Perfect Black) | Infinite (Perfect Black) |
Color Gamut | ≈99% DCI-P3 | ≈99% DCI-P3 (QD-OLED models); ≈96-98% DCI-P3 (WOLED models) |
HDMI Ports | 4x HDMI 2.1 (All ports support 4K@144Hz) | 4x HDMI 2.1 (All ports support 4K@144Hz) |
HDMI 2 1 | Yes (4 ports) | Yes (4 ports) |
VRR | Yes (G-SYNC Compatible, FreeSync Premium, HDMI Forum VRR) | Yes (FreeSync Premium, G-SYNC Compatible, VRR) |
Allm | Yes (Auto Low Latency Mode) | Yes (Auto Game Mode) |
Input Lag | ≈10 ms @ 60Hz; ≈5 ms @ 120Hz; ≈0.1 ms response time | ≈10 ms @ 60Hz; ≈5 ms @ 120Hz; ≈3 ms @ 144Hz |
Audio Channels | 2.2 Channel (55"-83"); 2.0 Channel (42"-48") | 2.1 Channel |
Audio Power | 40 W (55"-83"); 20 W (42"-48") | 40 W |
Audio Features | Dolby Atmos; DTS:X (Bypass only); AI Sound Pro (Virtual 9.1.2 Up-mix); WiSA Ready (2.1ch) | Dolby Atmos; Object Tracking Sound Lite (OTS Lite); Q-Symphony; Active Voice Amplifier Pro |
Smart Platform | webOS 24 | Samsung Tizen OS (2024) |
App Store | LG Content Store | Samsung Smart Hub (Tizen); Samsung Gaming Hub |
Voice Assistants | Amazon Alexa Built-in; Works with Google Assistant & Apple Home | Alexa Built-in; Bixby; Works with Google Assistant |
Casting | Apple AirPlay 2; Chromecast Built-in | Apple AirPlay 2; Multi View; Tap View |
Connectivity | Wi-Fi 5 (802.11ac); Bluetooth 5.1; Ethernet (LAN); eARC (HDMI 2) | Wi-Fi 5 (802.11ac); Bluetooth 5.2; Ethernet (LAN); Optical Audio |
Tuner | ATSC 1.0 (Digital) / Clear QAM | ATSC 3.0 (NextGen TV) / Clear QAM |
Vesa | 300 x 200 mm (42"-55"); 300 x 300 mm (65"); 400 x 200 mm (77"); 400 x 400 mm (83") | 300 x 200 mm (55"/65"); 400 x 300 mm (77"); 400 x 400 mm (83") |
Dimensions With Stand | 55": 48.1 x 29.8 x 9.1 in; 65": 56.7 x 34.6 x 9.1 in; 77": 67.4 x 40.7 x 10.5 in | 65": 56.9 x 35.3 x 10.4 in; 77": 67.6 x 41.3 x 11.3 in |
Weight | 55": 35.3 lbs; 65": 40.8 lbs; 77": 59.5 lbs (with stand) | 65": 49.6 lbs; 77": 88.2 lbs (with stand) |
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As an Amazon Associate I earn from qualifying purchases. | Check Price on Amazon→ | Check Price on Amazon→ |
LG OLED evo C4 Series (2024)
Rating:★4.5(1,530)Amazon
Screen Size:42" / 48" / 55" / 65" / 77" / 83"
Resolution:4K (3840 x 2160)
Screen Type:WOLED (OLED evo)
Refresh Rate:144 Hz native (PC); 120 Hz (Consoles)
Processor:α9 AI Processor 4K Gen7
Upscaling:α9 AI Super Upscaling 4K
HDR Formats:Dolby Vision, HDR10, HLG (No HDR10+)
Peak Brightness:≈950-1,000 nits (55"+ HDR 2% window); ≈800 nits (42"/48" models)
Local Dimming:No (Self-illuminating pixels)
Contrast:Infinite (Perfect Black)
Color Gamut:≈99% DCI-P3
HDMI Ports:4x HDMI 2.1 (All ports support 4K@144Hz)
HDMI 2 1:Yes (4 ports)
VRR:Yes (G-SYNC Compatible, FreeSync Premium, HDMI Forum VRR)
Allm:Yes (Auto Low Latency Mode)
Input Lag:≈10 ms @ 60Hz; ≈5 ms @ 120Hz; ≈0.1 ms response time
Audio Channels:2.2 Channel (55"-83"); 2.0 Channel (42"-48")
Audio Power:40 W (55"-83"); 20 W (42"-48")
Audio Features:Dolby Atmos; DTS:X (Bypass only); AI Sound Pro (Virtual 9.1.2 Up-mix); WiSA Ready (2.1ch)
Smart Platform:webOS 24
App Store:LG Content Store
Voice Assistants:Amazon Alexa Built-in; Works with Google Assistant & Apple Home
Casting:Apple AirPlay 2; Chromecast Built-in
Connectivity:Wi-Fi 5 (802.11ac); Bluetooth 5.1; Ethernet (LAN); eARC (HDMI 2)
Tuner:ATSC 1.0 (Digital) / Clear QAM
Vesa:300 x 200 mm (42"-55"); 300 x 300 mm (65"); 400 x 200 mm (77"); 400 x 400 mm (83")
Dimensions With Stand:55": 48.1 x 29.8 x 9.1 in; 65": 56.7 x 34.6 x 9.1 in; 77": 67.4 x 40.7 x 10.5 in
Weight:55": 35.3 lbs; 65": 40.8 lbs; 77": 59.5 lbs (with stand)
✓ Pros:
- • New 144Hz refresh rate support makes it a top-tier monitor for PC gaming
- • Four full-bandwidth HDMI 2.1 ports (rare in competitors which often have only 2)
- • Extensive gaming features: G-Sync, FreeSync, and 0.1ms response time
- • Excellent reflection handling and viewing angles
✗ Cons:
- • Brightness Booster is missing on 42" and 48" models (they are dimmer)
- • No ATSC 3.0 tuner (NextGen TV support is missing)
- • Lack of HDR10+ support (LG exclusive Dolby Vision only)
- • Aggressive full-screen brightness limiting (ABL) in very bright scenes
As an Amazon Associate I earn from qualifying purchases.
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Samsung OLED S90D Series (2024)
Rating:★4(953)Amazon
Screen Size:42" / 48" / 55" / 65" / 77" / 83"
Resolution:4K (3,840 x 2,160)
Screen Type:QD-OLED (55"/65"/77"); WOLED (42"/48"/83") – US Market standard distribution
Refresh Rate:144 Hz native (PC); 120 Hz (Consoles)
Processor:NQ4 AI Gen2 Processor
Upscaling:4K AI Upscaling (20 neural networks)
HDR Formats:OLED HDR+, HDR10+, HLG (No Dolby Vision)
Peak Brightness:≈1,200 nits (QD-OLED HDR 2% window); ≈700-800 nits (WOLED models) – varies by panel type
Local Dimming:No (Self-illuminating pixels)
Contrast:Infinite (Perfect Black)
Color Gamut:≈99% DCI-P3 (QD-OLED models); ≈96-98% DCI-P3 (WOLED models)
HDMI Ports:4x HDMI 2.1 (All ports support 4K@144Hz)
HDMI 2 1:Yes (4 ports)
VRR:Yes (FreeSync Premium, G-SYNC Compatible, VRR)
Allm:Yes (Auto Game Mode)
Input Lag:≈10 ms @ 60Hz; ≈5 ms @ 120Hz; ≈3 ms @ 144Hz
Audio Channels:2.1 Channel
Audio Power:40 W
Audio Features:Dolby Atmos; Object Tracking Sound Lite (OTS Lite); Q-Symphony; Active Voice Amplifier Pro
Smart Platform:Samsung Tizen OS (2024)
App Store:Samsung Smart Hub (Tizen); Samsung Gaming Hub
Voice Assistants:Alexa Built-in; Bixby; Works with Google Assistant
Casting:Apple AirPlay 2; Multi View; Tap View
Connectivity:Wi-Fi 5 (802.11ac); Bluetooth 5.2; Ethernet (LAN); Optical Audio
Tuner:ATSC 3.0 (NextGen TV) / Clear QAM
Vesa:300 x 200 mm (55"/65"); 400 x 300 mm (77"); 400 x 400 mm (83")
Dimensions With Stand:65": 56.9 x 35.3 x 10.4 in; 77": 67.6 x 41.3 x 11.3 in
Weight:65": 49.6 lbs; 77": 88.2 lbs (with stand)
✓ Pros:
- • Perfect black levels and infinite contrast (all sizes)
- • QD-OLED models (55"-77") deliver class-leading color brightness and volume
- • Full 4K @ 144Hz support on all four HDMI 2.1 ports for PC gamers
- • Excellent reflection handling (especially on glossy QD-OLED panels)
✗ Cons:
- • No Dolby Vision support (Samsung remains exclusive to HDR10+)
- • Significant performance difference between QD-OLED and WOLED sizes
- • Tizen OS interface can feel cluttered with ads and recommendations
- • Aggressive ABL (Auto Brightness Limiter) can dim large bright scenes
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
Which one is better?
Looking at user satisfaction (LG OLED evo C4 Series (2024): 4.5★ vs Samsung OLED S90D Series (2024): 4.0★), LG OLED evo C4 Series (2024) pulls ahead. The gap is small—choose based on the priorities below.
Who should buy each?
Choose LG OLED evo C4 Series (2024) if:
- You want New 144Hz refresh rate support makes it a top-tier monitor for PC gaming, Four full-bandwidth HDMI 2.1 ports (rare in competitors which often have only 2)
- Rating: 4.5★ (1530 reviews)
Choose Samsung OLED S90D Series (2024) if:
- You prefer Perfect black levels and infinite contrast (all sizes), QD-OLED models (55"-77") deliver class-leading color brightness and volume
- Rating: 4★ (953 reviews)
Conclusion
With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.
Frequently Asked Questions
+Which has better value?
LG OLED evo C4 Series (2024) excels if you value new 144hz refresh rate support makes it a top-tier monitor for pc gaming. Samsung OLED S90D Series (2024) is better if you prioritize perfect black levels and infinite contrast (all sizes). 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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