With the same 1-inch 20-megapixel sensor and 24-100mm f1.8-2.8 lens as the G7 X, the Canon PowerShot G5 X targets basically the same enthusiast photographers, but with a photo-nerdier design that includes a very nice high-resolution built-in OLED electronic viewfinder, hot shoe and a more useful flip-and-twist articulated touchscreen rather than the selfie-oriented flip-up screen. It's a fine camera, but unless the more useful display and above-average viewfinder matter most to you, then it doesn't really stand out from the pack.
The camera runs $750 (£650, AU$990) which puts it right in the middle of the crowd of cameras with similar specifications.
As expected, given that it incorporates the same sensor, lens and image-processing engine, the G5 X's photo are very similar to those of the G7 X. JPEGs look very good at low ISO sensitivities, with saturated colors, nice contrast and a tonal range that can handle moderately contrasty lighting well.
At low ISO sensitivities, JPEGs look sharp (if a tad oversharpened), which is typical for cameras in its sensor class. The lens delivers pretty good edge-to-edge sharpness, though if you're not completely parallel to the scene the edge distortions become unusually pronounced, even at about a 50mm-equivalent angle of view.
Depending upon the light, JPEGs are usable through ISO 1600; beyond that the photos become visibly noisy and mushy from noise reduction, though they retain enough detail up through ISO 6400 that you might find them acceptable. You can regain some sharpness by processing the raw, but not a lot of detail in highlights and shadows.
As with the G7 X, the video looks good, with few artifacts, but not terribly sharp compared to competitors with 4K support.