View more prices Other than the slight price drop the 4K Apple TV still offers either a 32GB or 64GB option. What else has, or hasn't, changed? Design In the aesthetics department, practically nothing has changed with the Apple TV itself. It's still the square hockey-puck chassis that we've all seen across the years. Dimensions on both the 2017 and 2021 models remain identical at 98mm x 98mm x 35mm with a weight of 425g. Ports are also unchanged, with just power, HDMI and Ethernet connectors on the rear of the unit. The HDMI port on the newer version is 2.1 rather than the 2.0 found on the 2017 device, but that's about it in terms of the outer shell.