Ajazz AK680 vs AK820 ProWired 65% vs Wireless 75% Keyboard

Yes, the Ajazz AK820 Pro supports both Bluetooth 5.1 and a 2.4GHz wireless connection via an included dongle. It also has a 4000mAh rechargeable battery. For times when the battery is low or for minimal latency, it can also be used in wired mode with the included USB-C cable.

Yes, both the Ajazz AK680 and AK820 Pro feature hot-swappable PCBs. The AK680 supports 3-pin mechanical switches, while the AK820 Pro supports both 3-pin and 5-pin switches, giving you slightly more compatibility with different switch types for customization.

The Ajazz AK680 is better for a very small desk due to its 65% layout, which is significantly more compact than the 75% AK820 Pro. The AK680 measures 310mm in length, while the AK820 Pro is 327mm long and also much taller at 40mm.

According to their vendor listings, both the Ajazz AK680 and AK820 Pro are compatible with Mac and Windows operating systems. The AK820 Pro's listing specifically mentions you can switch between Win and Mac modes using its TFT screen.

The typing feel differs primarily due to the mounting style. The AK680 uses a tray mount, which is a more traditional, firmer mounting method. The AK820 Pro uses a gasket mount with a flex-cut polycarbonate plate, which is designed to isolate the plate from the case for a softer, more cushioned feel with less vibration.

The Ajazz AK820 Pro comes with PBT double-shot keycaps, which are generally more resistant to wear and shine compared to the ABS keycaps on the AK680. The AK820 Pro's keycaps also have south-facing LEDs for better shine-through with certain keycap profiles.

Yes, the Ajazz AK680 connects via a detachable USB Type-C cable, which is included in the box along with a keycap and switch puller.

The 0.85-inch TFT screen on the AK820 Pro acts as an interactive interface. The manufacturer states it can display customizable visuals, battery status, date and time, connectivity mode, operating system mode, and backlight effects.

Both keyboards include sound-dampening features to reduce noise. The AK680 uses EVA sandwich foam, according to its vendor page. The AK820 Pro uses a gasket mount design which the manufacturer says reduces vibration and noise, and it also includes sound-dampening foam.

The Ajazz AK820 Pro is substantially heavier, weighing 810g (0.8kg). The Ajazz AK680 is much lighter at 460g. The difference is due to the AK820 Pro's larger size, internal battery, and aluminum case accents.

While the vendor description confirms the AK820 Pro includes a metal knob, the specific default function is not detailed. Typically, such knobs on mechanical keyboards are programmable via software or firmware to control volume, scroll, or other functions.