The wall tile with better quality is porcelain. Porcelain tiles are renowned for their superior durability, resistance to stains, and ability to withstand harsh conditions. According to the Tile Council of North America (TCNA), porcelain tiles have a water absorption rate of less than 0.5%, making them highly resistant to water damage and suitable for both indoor and outdoor applications. In contrast, ceramic tiles typically have a water absorption rate of between 3% and 7%, which makes them more susceptible to cracking and chipping when exposed to moisture. Additionally, porcelain tiles are fired at higher temperatures, resulting in a denser and more durable tile that is less prone to wear and tear. This is evidenced by the fact that porcelain tiles often come with a longer warranty period compared to ceramic tiles.