Standing at 7’1” you wouldn’t think someone of that size had a vertical jump of 48 inches.
It isn’t just his jumping prowess that was great he was an exceptional all-around athlete running the 100 yard dash in 10.9 seconds, doing a triple jump of over 50 feet, throwing a shot put over 56 feet and winning the high jump 3 consecutive years in the Big Eight conference in the NCAAs.
Michael Jordan's vertical leap was 46 inches, but he wasn't 7'1". Wilt's vertical leap was 2 inches higher than any other player in the history of the NBA.
His record average of 50 points a game in '61-'62 is one of the awe-inspiring efforts in sports. Think of any NBA player in history scoring forty points in a night knowing that they need to score sixty points the next night to maintain their scoring average.
Wilt's career began at a time when he could totally dominate a slower and smaller league. It made for incredibly gaudy stats that will probably never be broken, but I think it ultimately made Wilt a poorer player. If there was one area where I think Chamberlain lags, it was bringing his competitive fire every night. He wasn't like Bill Russel, Michael Jordan or Larry Bird. (Kevin McHale tells my favorite Larry Bird story.)
I think if Wilt had entered the league 10 years later his stats may not have been as awesome, but the level of competition would have made him a better player.