1, with different definitions. Signature pens refer to pens specially used for signing, such as ballpoint pens, gel pens and pens. Ballpoint pen mainly refers to a pen that takes out the writing medium by rotating the ball at the front end of the refill.

2. Different colors. The color of the signature pen is generally black, and the color of the ballpoint pen is blue.

3. Different inks. The ink of signature pen is generally water-based or neutral, while the ink of ballpoint pen is oily.

4. Different uses. Writing with a signature pen has a certain friction, which is convenient for better control of the pen tip and helps to write beautifully; The ballpoint pen slips, making it easy to write Chinese characters quickly.