The Canon G7 X was the company's first advanced compact to use the 1 inch sensor, after the success of the 1.5" sensors in the pricer options. The Canon G7 X Mark II, as the name suggests, is an update to that original 1 inch sensor camera, but looks to be a good one at that.
So what's new to warrant that "Mark II"? Canon has upgraded the image processor. That bumps up the burst speed from 6.5 to 8 fps. The new processor will also boost autofocus performance over the older model. Processors also play a part in how well the camera handles high ISOs, so expect to see a bit better low light performance.
Outside of the processor, the Canon G7 X Mark II doesn't see too many changes, but that's okay. The 3" screen still tilts 180 degrees. There's no viewfinder or hot shoe slot, but Canon offers a hot shoe slot with an optional add on viewfinder in the G1X Mark II. Both WI-FI and NFC is included. Along with manual modes, Canon has included RAW shooting capability.
The 1" sensor and f/1.8-2.8 lens remains the same, but again that's fine because it was pretty solid to begin with. The new processor should offer a slight boost in image quality for noise reduction, but otherwise expect similar quality to the first version of the camera.
The Canon G7 X Mark II is a solid advanced compact camera with a competitive price. It still doesn't quite have the speed or features of the Sony RX100 IV, but offers a nice boost in speed over the previous version and sits as a solid compact camera option.