Choosing between the LG C3 and Samsung S90C OLED TVs in 2025 is like choosing between two champions. Both represent the pinnacle of OLED display technology, but they take different approaches. In this comparison, we’ll break down where each excels so you can make an informed choice.
Panel Technology: WOLED vs QD-OLED
The LG C3 uses LG Display’s traditional White OLED (WOLED) panel enhanced by the evo layer. The Samsung S90C, on the other hand, uses Quantum Dot OLED (QD-OLED) technology, which offers:
Higher peak brightness
Wider color gamut
Slightly better off-angle viewing
LG C3 is better at:
Preventing burn-in with advanced pixel care
Displaying Dolby Vision content
Brightness and HDR Performance
The Samsung S90C edges out the LG C3 in brightness, making it a better fit for bright rooms. However, the LG C3 performs more consistently in darker rooms and supports Dolby Vision IQ, which dynamically adjusts HDR based on ambient lighting.
HDR Support:
LG C3: Dolby Vision, HDR10, HLG
Samsung S90C: HDR10+, HLG
Smart TV Platforms
webOS 23 vs Tizen OS
LG C3 (webOS 23): Simpler navigation, customizable user profiles, better smart home integration with ThinQ, Alexa, Google, and Apple HomeKit.
Samsung S90C (Tizen): Strong support for Samsung SmartThings, Bixby, Alexa, and Google Assistant.
Gaming Capabilities
Both TVs are gaming powerhouses with:
4K 120Hz on HDMI 2.1
VRR, ALLM, and Game Mode
FreeSync Premium
However, LG supports G-SYNC and has a better Game Optimizer dashboard, giving it a slight edge for PC gamers.
Smart Home Compatibility
LG integrates more deeply with broader ecosystems:
Alexa: Native voice command, device groupings, routines
Google Assistant: Hands-free control via remote mic
HomeKit: Seamless use with iOS devices
Samsung is ideal for homes already running SmartThings, especially with Samsung appliances.
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Pricing and Sizes
LG C3 Sizes: 42”, 48”, 55”, 65”, 77”, 83”
Samsung S90C Sizes: 55”, 65”, 77”
LG wins in offering smaller size options for tighter spaces or gaming setups.
Verdict: Which Should You Buy?
Choose LG C3 if you want Dolby Vision, better gaming tools, and deeper smart home integrations.
Choose Samsung S90C if you prefer brighter visuals and QD-OLED color punch.
Samsung TV buyers may also want the Q700C soundbar for full Q-Symphony compatibility.
Final Thoughts & Use Case Summary
While both TVs provide premium OLED experiences, they’re tailored for slightly different audiences:
Movie Buffs: LG C3 with Dolby Vision and cinematic AI enhancements.
Gamers: LG C3 with G-SYNC, Game Optimizer, and ultra-low latency.
Bright Room Users: Samsung S90C with higher HDR brightness and QD-OLED color.
Smart Home Users: LG C3 for wider assistant and ecosystem compatibility.
Want deeper Alexa integration? Explore our Smart OLED TV with Alexa.
Curious how both compare for gamers? Read our Best OLED TV for Gaming.
Bonus Comparison Table
| Feature | LG C3 OLED | Samsung S90C QD-OLED |
|---|---|---|
| Panel Type | WOLED + OLED evo | QD-OLED |
| HDR Support | Dolby Vision, HDR10, HLG | HDR10+, HLG |
| Smart OS | webOS 23 | Tizen |
| Gaming Support | VRR, ALLM, G-SYNC | VRR, ALLM, FreeSync |
| Voice Assistant | Alexa, Google, Siri (HomeKit) | Alexa, Google, Bixby |
| HDMI 2.1 Ports | 4 | 4 |
| Sizes Available | 42–83” | 55–77” |
| Price (approx.) | $1,299–$2,999 | $1,499–$3,199 |
Recommended Read Next: OLED TV with HDMI 2.1 Support