1. Different usage locations: water-based pens are generally used for writing in various occasions, while neutral pens are mostly used for exams and document purposes. 2. Different pen tips: water-based pens mostly have round tips, while neutral pens are mainly divided into three types: bullet tip, full needle tip, and half needle tip. 3. Ink difference: water-based pens use pure water-based ink, while neutral pens use pigment based ink.

Water based pens are mainly characterized by round bead shaped pen tips and non refilling ink refills. Due to their convenience, cleanliness, and fluent writing, after more than ten years of development, they have become popular in large and small government agencies, companies, enterprises, and colleges and universities.

The main solvent for water-based pens is water. Common water-based pens include ballpoint pens, signature pens, plastic pens, brushes, and highlighters. Water based pens are odorless than oil-based pens, and the tip is not easily dried. Their handwriting is light resistant but not water-resistant, and it will render when exposed to water. If accidentally dropped, it is easy to break the water.