Asus zenfone 3 Max ZC553KL not better sound reception as usual. it launched in market in november 2016 then I bought this phone on that time it`s market prive about 16500 rs. its technology GSM / HSPA / LTE it is a user friendly smart phone on that time. it`s body dimensions 151.4 x 76.2 x 8.3 mm and front glass, aluminium body weight much about 175g . it is a popular smart phone on my eyes for some days. display type IPS LCD, size of display 5.5 inches it display resolution so much better about 1080 x 1920 pixcels multitouch up to 10 fingers and GPU adreno 505 . its RAM will be 2/3/4 GB and ROM 32 GB fixed, so its ram is various. its OS Android v 6.0.1(Marsmallow), upgradable to 7.1.1(Nougat) chipset Qualcomm MSM8937 Snapdragon 430 that is better from another asus smart phone is same price range. CPU Octa-coree 1.4 GHz Cortex-A53 and gpu adeno 505 as usual asus phone. camera combination primary 16 MP and secondary 8 MP f/2.2 that is good . in a reasonable price on that time a good smart phone .