RMD vs WAT Comparison

ResMed is one of the largest respiratory care device companies globally, primarily developing and supplying flow generators, masks, and accessories for the treatment of sleep apnea. Increasing diagnosis of sleep apnea combined with aging populations and increasing prevalence of obesity is resulting in a structurally growing market. The company earns roughly two-thirds of its revenue in the Americas and the balance across other regions dominated by Europe, Japan, and Australia. Recent developments and acquisitions have focused on digital health as ResMed is aiming to differentiate itself through the provision of clinical data for use by the patient, medical care advisor, and payer in the out-of-hospital setting.

Waters sells liquid chromatography, mass spectrometry, and thermal analysis tools. These analytical instruments provide essential information on various products, such as their molecular structures and physical properties, to help clients enhance the health and well-being of end users. In early 2026, Waters merged with BD's life science and diagnostics business, which increased its concentration in diagnostics (versus none now) and discovery-related life science tools.