Preferred Body Composition Test Method — Clarabelle s306
The Bod Pod is a new tool that relies on air displacement to determine body fat, says Bryant. There's no submersion; you don't get wet. But you have to get into the Bod Pod chamber, be very still, control your breath; all factors that can affect the results. Your hydration level before the test can also affect results.
Price: $40 to $65 per test.
It's much easier and more convenient than underwater weighing and it is about as accurate and reliable as DEXA, and is much cheaper plus it is becoming more widely available. Though it may still need some refinement.