Yunzii CK75 vs B75 Pro Max

The main difference is the feature set. The B75 Pro Max includes QMK/VIA firmware support, a customizable TFT screen, and a multi-function knob, while the CK75 focuses on a unique transparent acrylic design with a more traditional feature set. The B75 Pro Max also has a significantly larger 8000mAh battery compared to the CK75's 3750mAh battery.

Based on its feature set, the B75 Pro Max is better for gaming. It features N-Key Rollover (NKRO) for registering all simultaneous key presses and is available with linear switches like the YUNZII Milk V2. The CK75 is available with tactile switches and lacks specific gaming features like NKRO in its description.

Only the Yunzii B75 Pro Max explicitly supports this. According to its product page, it features QMK/VIA open-source firmware, which allows for key remapping and macro creation. The CK75's page mentions a compatible software but does not specify QMK/VIA support, so its customization depth is unclear.

The CK75 is offered with tactile switches, such as the 45gf Ice Blade Tactile Switch, as well as Meow, Lilac, and Glory switches. The B75 Pro Max is offered with linear switch options: YUNZII Milk V2, YUNZII Cocoa Cream V2, or YUNZII Candy Linear Switch.

Yes, both keyboards feature hot-swappable PCBs that are fully compatible with 3-pin or 5-pin mechanical switches. This allows you to swap out keycaps and switches without soldering. The CK75 comes with KSA profile keycaps, while the B75 Pro Max comes with Cherry profile keycaps.

The Yunzii B75 Pro Max has a significantly larger battery. It features an 8000mAh battery, while the Yunzii CK75 has a 3750mAh battery. According to the CK75's vendor description, its battery lasts for 25 hours with RGB on and 90 hours without.

Only the Yunzii B75 Pro Max includes both. Its product page specifies a 160x96px TFT screen and a multi-function knob (default: volume control). The Yunzii CK75 does not have a screen or a knob.

The Yunzii CK75 is slightly heavier at 1050g (1.05kg), while the Yunzii B75 Pro Max is 993g (2.19lb). The difference is only 57 grams, so neither has a significant weight advantage for portability.

The Yunzii B75 Pro Max is generally better for productivity. It scores higher in productivity features and its QMK/VIA support allows for complex key mapping and macros. The CK75 is a good choice for office use if you prefer a tactile switch and a transparent aesthetic, but lacks advanced remapping tools.

The B75 Pro Max is worth the higher price if you need advanced features like QMK/VIA software, a customizable TFT screen, a knob, and a much larger 8000mAh battery. If those features are not important and you prefer tactile switches with a unique transparent look, the CK75 is a more budget-friendly option.

The Yunzii CK75 uses double-shot PBT keycaps in a KSA profile, which is taller and more sculpted. The Yunzii B75 Pro Max uses double-shot PBT keycaps in a Cherry profile, which is shorter and more common. Both are made from durable PBT material.