samsung s4 wifi receiver

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.

via Cell Phone Forums (French) http://cellphoneforums.net/fr/samsung-galaxy/t365377-samsung-s4-wifi-receiver.html