Segmentation by type classifies wearable ambulatory monitoring devices into five distinct form‑factors, each influencing design, adoption barriers, and cost structure. Patch‑based sensors, adhered to the skin for up to several weeks, dominate the clinical niche due to their low profile and minimal user burden, contributing roughly 30 % of type‑related revenue. Wrist‑worn devices—smartbands and watches—capture a broad spectrum of vitals and command about 28 % of the market, benefitting from mass‑market distribution channels. Chest‑strap platforms, primarily for ECG and respiration, hold a 22 % share, favored in sports medicine and high‑precision cardiac monitoring. Ear‑wearable solutions, such as smart earbuds with pulse‑oximetry, occupy 12 % of the type mix, leveraging existing consumer audio ecosystems. Smart‑textile or clothing‑integrated monitors, embedding sensors into fabrics, represent the smallest yet fastest‑growing segment at 8 %, driven by advances in flexible electronics. The relative size of each type reflects trade‑offs among data fidelity, user comfort, and manufacturing complexity.