4on

Customer sentiment for 4on is largely positive, driven by the perceived effectiveness and convenience of its UV sterilization products, particularly for toothbrushes. Users appreciate the compact design, ease of use, and the peace of mind that comes with enhanced hygiene, making it a popular choice for home and travel. Many highlight its practical application in maintaining cleanliness for personal items. However, recurring concerns surface regarding product durability and battery longevity, with some users reporting units failing or experiencing charging issues after a few months of use. While the core functionality is praised, these quality control aspects occasionally temper an otherwise favorable reception, suggesting a desire for more robust construction to match the innovative concept.