First of all, the appearance of these two watches is different. The materials of the two watches are different to the naked eye. The case material of HK8 Pro Max is zinc alloy+IML, which makes it look stronger; while the case material of HK9 Pro is kirsite+IML. It will feel simple and light when you go up.
Secondly, the display sizes of these two watches are also different. The size of the HK8 Pro Max smartwatch is 49*44*14.4 mm, and the display is 2.12 inches. The size of the HK9 Pro smartwatch is 46.3*39.2*11 mm, and the display is 2.02 inches. From the comparison of the above two data, it can be seen that the size of the HK8 Pro Max smartwatch is significantly larger.
Third point, There are three types of straps for the HK8 Pro Max smartwatch: silicone strap, Leather watch strap, and Steel watch strap. There is only one kind of strap for HK9 Pro —silica gel. The HK8 Pro Max smartwatch has more strap colors, so you have more choices, but I don’t think this is a reason to choose your favorite watch.
Finally, the HK9 Pro watch has been upgraded with a stronger battery, so its standby time will be longer than the HK8 Pro Max.
Having said that, there are many similarities between the HK8 Pro Max smartwatch and the HK9 Pro smartwatch. Their screens are all AMOLED high-definition screens, both of which support NFC function, equipped with a compass, Bluetooth call, Voice assistants, health monitoring, and more.
HK8 Pro Max：
But the HK8 Pro Max does make sense for some and is too big for some wrists, and the HK9 Pro smartwatch fills that gap nicely. Of the two watches, I personally prefer the minimalist design of the HK9 Pro smartwatch.