Question: how big are first class seats?
Answer: International first-class seats usually have 147–239 cm (58–94 inches) of seat pitch and 48–89 cm (19–35 inches) of width while domestic flights may have 86–173 cm (34–68 inches) of pitch and 46–56 cm (18–22 inches) in width. In fact this means there is less discomfort for taller people.