Saitama's speed in the manga is incredibly fast. It's hard to put a specific number on it, but he can cover great distances in no time and react with lightning speed to any threat.
Saitama's strength in the manga is basically off the charts. He has no known limits and can take down any foe with ease. His power seems almost invincible.
Saitama's strength in the manga is off the charts. He has no known limits and can overcome any challenge with ease. His power is so overwhelming that it often makes battles anticlimactic.