The Canon EOS 77D is a mid-range consumer DSLR that sits between the new EOS 7Di and the older 80D, with the same sensor but a mid-level feature list.
The EOS 77D sports a 24 megapixel APS-C sensor. That's paired with the Digic 7 processor, an update that the 80D doesn't even have, which gives the camera a top burst speed of 6 fps. The camera also sports a new Dual Pixel autofocus system for faster, more accurate focus.
On the outside, the camera doesn't have weather-sealing but offers a more advanced control scheme than the cheaper T7i in a smaller profile than the 80D. Bluetooth is also included.
The kit lens was updated with a smaller size -- but the trade-off is the lens isn't as fast, at f/4-5.6, so opting for the body-only and choosing a better lens may be a good choice here.
The Canon EOS 77D is a nice mid-range option for enthusiasts with an updated processor and enhanced autofocus system. The DSLR is expected to list for $900 body-only or $1,050 with the new kit lens, slightly more than Nikon's mid-level enthusiast D5600 which is slower by 1 fps in burst mode.