TechPowerUp posted a review on the G-Wolves Hati-S Plus 4K
A quote from the article:
The Hati-S Plus 4K comes with true 4000 Hz wireless polling, which is the unique selling point over the ACE variant. Due to a larger battery, the 4K also weighs a bit more at 51 g, and PixArt's PAW3399 sensor is used. Other than that, main button switches from Zippy, pure PTFE feet, and a solid-shell design are still present.G-Wolves Hati-S Plus 4K Review