iphone8plus only rings on one side. There are two rows of holes at the bottom of the Apple phone, one side is the speaker, and the other side is the microphone, so when listening to music, only the speaker side sounds.
iPhone 8?Plus has dual 12 million pixels. Apple emphasizes the use of larger and faster photosensitive elements, and supports 4K 60FPS for video shooting. The flash has added "slow sync technology", and the front is exactly the same 7 million pixels.
The dual rear cameras of iPhone 8 Plus focus on machine learning portrait background blur shooting, and support 4K video shooting at 60fps code stream. Support wireless charging. Another feature is that its graphics sensor adds support for AR technology.
Compared with the iPhone 7, the maximum volume of the new iPhone 8 has been increased by 25, and the deeper low-frequency dive can bring better results when playing music, videos or hands-free calls. Judging from the introduction on the official website, it seems that the earpiece speaker is also used as part of the stereo speaker. In fact, such stereo speakers are not exclusive to the iPhone
Reference materials
iPhone 8 Plus-Baidu Encyclopedia