Yes, foxes generally have better hearing than deer. Foxes have highly developed auditory senses, which they rely on for hunting and detecting predators. They are capable of hearing a wider range of frequencies and can detect sounds at greater distances.
Deer also have good hearing, which helps them detect threats in their environment, but their hearing is not as acute as that of a fox. While both animals are adapted to their respective ecological niches and have evolved to rely on their senses for survival, foxes are particularly known for their sharp hearing abilities.