I have try the Bowflex Select Tech and have own these weight for two month now , and the select tech do not even compare be so many way . the Select Tech be WAY bulkier and feel very awkward to hold . it be much longer and when you choose the weight setting , it randomly pull out certain weight off the dumbell which make the dumbell feel weird . the powerblock on the other hand feel very stable and non awkward . when you pull the weight out on whatever setting you want it on , it conviently pull out and leave all the weight that be below the weight you pick on the ground . it be a amazing product and be absolutely worth the price . also if you want to have they in 2.5 weight incremenet , just buy 2.5 pound wrist weight for each arm !