Types segmentation categorizes devices based on engineering architecture rather than clinical indication, encompassing balloon systems, endoscopic sleeve gastroplasty platforms, gastric plication devices, aspiration systems, and gastric electrical stimulation units. Balloon systems, the most mature category, consist of fluid‑filled or air‑filled polymers that occupy gastric volume; they dominate the market due to low procedural complexity and established safety data. ESG platforms integrate suturing or stapling mechanisms that remodel the stomach without resection, delivering higher efficacy but requiring advanced endoscopic skill sets. Gastric plication devices mechanically fold gastric tissue to reduce capacity, offering a reversible alternative with moderate adoption. Aspiration systems, exemplified by percutaneous endoscopic gastrostomy‑based devices, enable post‑prandial fluid removal, representing a niche yet growing segment driven by patient demand for controllable weight loss. Gastric electrical stimulation units modulate vagal signaling to suppress appetite, currently a small fraction of the market but with significant research investment. The distribution of revenue across these device types reflects manufacturing cost structures, procedural time, and reimbursement intensity, forming the backbone of the overall market taxonomy.