The EOS 77D is best described as a “tweener,” sitting smack between the EOS 80D and the EOS 800D. In terms of size, it measures 131.0 x 99.9 x 76.2mm and weighs 493g (body only). That’s a bit smaller than the EOS 80D which measures 139.0 x 105.2 x 78.5mm and weighs 650g (body only), but exactly the same size and about the same weight as the 800D which measures 131.0 x 99.9 x 76.2mm and weighs 485g (body only).
When it comes to layout, the EOS 77D shares more in common with the EOS 800D than with the EOS 80D. The sole difference is the inclusion of an LCD info display in place of the mode dial, which has been moved to the left of the camera. The light weight and small size of the EOS 77D make it easy to grip with one hand.
In terms of functional upgrades, all three use the same 24MP APS-C CMOS sensor, but the EOS 77D gains Canon’s latest Digic 7 image processor which helps both with Live View shooting and subject tracking performance. Like the EOS 80D, the EOS 77D sports a 45-point all-cross-type phase detect system and uses Canon’s Dual Pixel CMOS AF system, thus ensuring speedy focus no matter if you’re shooting via Live View or the viewfinder.
The EOS 77D also maintains the excellent rear LCD with swivel and touch, allowing you to go through the menus and various settings of the camera by touch. Combine that with the Q menu interface, and you have a screen that lets you quickly and easily access all of your most used features on the camera. Review images taken with the EOS 77D just as you would on a smartphone, with pinch to zoom, and the ability to swipe from one image to the next.