Redragon PENUMBRA K687 HE vs UCAL K673Wired Hall Effect vs Wireless

The core difference is the switch technology and connectivity. The Penumbra K687 HE uses Hall Effect magnetic switches and is wired-only, targeting high-performance gaming. The UCAL K673 uses standard linear red switches and offers tri-mode wireless connectivity (Bluetooth, 2.4GHz, and wired) for flexibility.

The Redragon Penumbra K687 HE is better for competitive gaming. Its Hall Effect switches allow for adjustable actuation points down to 0.1mm and feature Rapid Trigger technology. The solid aluminum frame also provides more stability during intense use.

Yes. According to Redragon, the UCAL K673 supports tri-mode connectivity, allowing you to switch between a 2.4GHz wireless dongle, Bluetooth, and a wired USB-C connection. This makes it easy to pair with a PC, laptop, or tablet.

Yes. The manufacturer states the Penumbra K687 HE package includes four spare Hall Effect magnetic switches along with a keycap and switch puller.

The UCAL K673 is more portable. It is 260 grams lighter than the Penumbra and operates wirelessly with a built-in battery, eliminating the need for a constant cable connection, which is ideal for travel or moving between workspaces.

Both keyboards list software support. The Penumbra K687 HE software is used to adjust Rapid Trigger and actuation points. The UCAL K673 vendor page also lists software support for customization.

The Redragon Penumbra K687 HE uses PBT keycaps. PBT plastic is known for being more durable and resistant to shine compared to ABS keycaps. The UCAL K673's keycap material is not specified in the provided information.

The UCAL K673 is equipped with a 4000mAh battery. Redragon's description suggests this provides long-lasting use for intensive gaming and work applications, though exact battery life in hours is not stated.

Both keyboards are pre-built and their product listings do not specify hot-swap sockets. The Penumbra includes spare switches and tools, implying some level of replaceability, but Redragon notes its Hall Effect switches are not cross-compatible with other brands.

Both feature sound-dampening foam. The Penumbra K687 HE is described as having a five-layer system including 3.5mm PO foam, IXPE switch foam, a PET sound pad, bottom socket foam, and a silicone pad. The UCAL K673 uses 3.5mm PO foam and a thick silicone pad under the PCB.

The vendor description for the UCAL K673 specifies a QWERTZ layout, which is standard for German-speaking regions (DE/AT/CH). Buyers should confirm the layout matches their region's standard before purchasing.