DEXA body composition scans use x-ray technology, which can be harmful in excess, so you can only do the DEXA test once per quarter. DEXA scans are also not safe for pregnancy. SECA body composition scans use bioimpedance, a non-invasive, accurate, and 100% safe alternative that’s been used in the medical field for many years. SECA body composition scans are safe for pregnant women and youths and can be completed as often as you like. DEXA scans are typically 4x the cost of SECA scans. SECA scans are more affordable Another key difference when considering DEXA vs SECA scans is that DEXA scans cannot measure intracellular and extracellular body water. This metric is useful in telling you where you hold inflammation or if you might be overworking certain parts of your body during workouts. It can also tell you how hydrated you are and if you are retaining water.  For more information on SECA body composition scans, visit the SECA website.