Which watch is better, Casio or Omega?

This should be chosen according to personal tastes and preferences. Omega focuses on high-end watches and Casio focuses on fashion watches:

Casio watch: one of the three major brands in Japan, it has been famous for its real multifunctional G-SHOCK watch for many years. The brand image of vitality, youth, fashion and multifunction represented by Casio watches has been deeply rooted in people's hearts. Casio has always been committed to staying ahead of its peers in technology, and there will be technological breakthroughs in these years. Combining high, precise and sophisticated advanced technology with new liquid crystal technology, and properly applying it to wristwatches, the development level of wristwatches has been continuously improved-the spirit of "wrist technology" advocated by Casio has also been passed down and spread in China.

Omega: The four classic wristwatch series are Constellation, Omega Seahorse, Motorized Altman and UFO. Hippocampus series was born in 1948, which is very popular among divers and explorers. The mobile Altman series used to be famous for space travel, but it hasn't changed substantially since 1957. Constellation series is one of the most recognizable fashion watches in the world, which has been newly designed and upgraded. The UFO series is classic and elegant, and it is the first to carry the coaxial escapement technology of Omega collar watch jar. There are also museums, luxury jewelry, luxury leather goods and other special series.