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.
Like those previous models, Huawei's latest creations include a pretty decent
speaker setup, combining a bottom - firing
main speaker with an additional tweeter behind the
earpiece, as part of a pseudo-stereo setup.
The
main idea is that by housing a phone's various sensors and
earpiece speaker into a notch at the top of the display, OEMs are able to further slim down bezels and fit a larger screen on a smaller body.
Most manufacturers have either given up on the idea completely, or use the
earpiece speaker and
main loudspeaker combined to form a kind - of stereo effect that's not particularly effective.