The Nikon D7500 is a camera update that takes two steps forwards and one step back. The D7500 includes a number of new features, but also steps back with fewer megapixels, lower battery life and only one SD card slot compared to its predessor.
The Nikon D7500 uses the same sensor as the D500 -- a 20.9 megapixel APS-C sensor with the optical low pass filter removed. That sensor is also capable of shooting 4K videos at 30 fps, though longer recordings will be split into multiple files. The ISO range is also very wide, covering ISO 11 - 51,200 and up to 1,640,000 expanded, making it an excellent camera for low light photography.
The D7500 also sees a nice speed increase to 8 fps, up by two frames from the D7200. The camera is also more capable of managing those files quickly, with a 50 shot buffer even for large RAW files. The autofocus is the same as the older D7200 with 51 points.
The D7500 also brings the tilting touchscreen of the D5600 to the 7000 series for the first time, making awkward compositions a bit simpler. The body is also around five percent lighter. As one of Nikon's more advanced APS-C DSLRs, the D7500 includes dual control wheels, a secondary LCD screen at the top and a plethora of physical controls.
While the speed boost over the D7200 is something many users will be happy to see, Nikon made a few sacrifices to get there. The sensor actually has fewer megapixels than the D7200, though the same one in the pricier and even faster D500. The battery life is also lower by about 200 shots. Design-wise, the D7500 is also missing the dual SD card slots of the D7200.
The Nikon D7500 is a bit of an odd update, sitting between the features of the D7200 and D500. That speed is nice to see, but the list of features and the absence of others isn't likely going to make D7200 owners want to update. If you need the speed and connectivity, the D7500 will likely live up to Nikon's reputation for solid image quality and low light performance (though you'll get more speed if you can swing for the price of the D500). But if you want more resolution, the D7200 is still a solid shooter and should see a price drop with the newest model out. If you're not already invested in Nikon's lens system, compare carefully to Canon's 77D and 80D first, though neither offers 4K.