Handheld BF readers

[harbinator]

I know these things are inaccurate but Ive been using the same one for the past year when going for checkups. I heard amount of water is how it determines bf%, so which way is it, if I were to drink lots of water, more than normal, would it read bf as higher or lower than normal?

 

[SgtSlaughter]

I will not claim to be an expert but I believe it will read higher if one drinks copious amounts of water and sodium due to cellular expansion as a result of higher H20 levels.