Which is better, Omega Blue Disc Flying or Golden Needle Disc Flying?

Omega Blu-ray Disc flies well. The functions of Blue Disc Flying and Golden Needle Flying are excellent. Blu-ray disc Flying has pilot function and GMT function, with second time zone pointer and 24-hour dial, which is suitable for business people who travel frequently. The flying saucer with golden needle has the functions of timing and calendar, which is suitable for people who need to check the timing and calendar frequently.