As far as port, sensor, and button
placement is concerned: on the back, we have our main camera sensor and a LED flash, there's no heart - rate sensor on the A series; on the front, we have our proximity and ambient light sensors, a front - facing camera, earpiece, display, back and recent app capacitive keys, and a home button with an integrated touch - based fingerprint sensor (A5 and A7 only); on the bottom, there's a microphone, 3.5
mm headphone jack, MicroUSB port, and the speaker grille; on the top, we have nothing other than the secondary microphone, and, just like the new GS7, there's no IR blaster on board; and the volume buttons are located on the left side of the aluminium frame, while the power button is located on the right side — all three buttons are very tactile with excellent reachability and positioning.
A 3.5
mm audio
jack apparently won't be part of the package, less ASUS decided for a more unconventional
placement of the
headphone port, i.e. had it installed on the top of the handset.
Just like on the Galaxy S8, there is a 3.5
mm headphone jack, and a USB type - C connector, the
placement of which will bug the hell out of everyone with even the slightest form of OCD.