A:Answer Hello! The main differences between the Arc 6 and Arc 5 shavers lie in their design, performance, and features. The Arc 6 comes with 6 blades, instead of 5. The Arc 5 provides up to 70,000 cross-cutting actions per minute, while the Arc 6 has a more powerful motor, providing up to 84,000 cross-cutting actions per minute. The Arc 6 also includes newer technologies and additional features such as improved wet/dry performance, a more flexible shaving head, and enhanced durability. -M