Em relação a tela? Em todos os pontos, comparação direta:
The Samsung S90D
OLED is mostly better than the LG C4
OLED. The Samsung gets brighter in HDR, so bright highlights stand out more on it, and it maintains its HDR brightness better while in Game Mode. The Samsung TV also has a wider color gamut, better color volume, and better HDR gradient...
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The Samsung S90D
OLED is mostly better than the LG C4
OLED. The Samsung gets brighter in HDR, so bright highlights stand out more on it, and it maintains its HDR brightness better while in Game Mode. The Samsung TV also has a wider color gamut, better color volume, and better HDR gradient handling, so colors in HDR are more vibrant, lifelike, brighter, and have less banding. The Samsung has a wider viewing angle, and the image doesn't have a green tint that worsens as you move off-center, so it's the better choice for watching TV in a group setting. However, the LG supports Dolby Vision and DTS audio formats, so it's the better option for those looking to get the most out of their physical media.
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Inclusive até em S90 vs G4 (lembrando que a G4 é outro segmento, custa o dobro) o veredito sugere um empate nos produtos, mas isolando imagem a S90 fica acima em HD e a G4 melhor em SD:
The LG G4
OLED and the Samsung S90D
OLED are both amazing TVs, but there are some differences worth noting. The Samsung has a wider color gamut, so it can display more vibrant and lifelike colors, and it has better color volume, so it can display brighter colors. The S90D also has no noticeable...
www.rtings.com
The LG G4
OLED and the Samsung S90D
OLED are both amazing TVs, but there are some differences worth noting. The Samsung has a wider color gamut, so it can display more vibrant and lifelike colors, and it has better color volume, so it can display brighter colors. The S90D also has no noticeable banding in colors, while the LG does have some banding in certain colors. On the other hand, the LG has better low-quality content smoothing, so it's the better choice if you regularly watch DVDs or low-quality streams. The LG also supports both Dolby Vision and DTS audio formats, which is great if you're looking to get the most out of your 4k Blu-ray collection. On top of that, the LG has better SDR brightness, so it overcomes more glare in a bright room.
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Todas as aferições técnicas comparadas aí podem ser vistas nos reviews dos produtos.