Yes, LG G7 Plus does have the wireless charging support. It takes about 3 hours to fully charge the LG G7 battery.
Yes, LG G7 does have the portrait mode.
Yes, LG has added voice recognition in LG G7 Plus. This is actually a combination of a new chipset, a few mics and Google's AI. The G7 Plus can recognize your voice from up to 5 meters distance even in a noisy of surrounding and can launch Google Assitant in an instant.
LG G7 has a display resolution of 1440 x 3,120 resulting into 564 PPI.
There are so many little things done right in the G7, but it's up to you to discover them as our review is about to end. If you can live with the small setbacks the still camera has, then you most definitely have to try the G7 for a size.