Can you define 'way poorer'? Did you do a speed test on each phone at the same time?

i've tried two samsung galaxy phones (s2 and s4) together side by side using our wifi router at home at the same location and i discovered that the wifi receiver of s4 has weaker reception ability than the s2. hope samsung company take note of that or is it just my s4 i bought but i tried it with other s4 and to add my confirmation to my observation, the conclusion is: the s4 wifi signal receiver is way poorer than s2.