Redragon K721 vs UCAL K673Wired Gaming vs Wireless Versatility
Choose the K721 for competitive gaming performance, or the K673 for wireless flexibility and a quieter typing experience.
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Which one should you get?
Get the
Redragon K721
Wired Gaming
Build quality in the bottom 40% of 75% boards under $100.
- Features adjustable Hall effect magnetic switches with a wide actuation range (0.01mm-3.5mm).
- High 8000Hz polling rate for minimal input latency.
- Includes Rapid Trigger technology for gaming.
- Magnetic switches only. Standard MX switches will not fit.
Get the
Redragon UCAL K673
Wireless Versatility
Build quality in the bottom 35% of 75% boards under $100.
- Offers tri-mode connectivity (Bluetooth, 2.4GHz, and wired).
- Includes a ONE-Knob for media and lighting control.
- Features sound dampening with 3.5mm PO foam and a silicone pad.
- Switches are soldered. Swapping them means soldering.
Your primary need dictates the choice. If competitive gaming performance with the fastest possible response is your goal, the Redragon K721 is the dedicated tool. If you value a clean desk, need to connect to multiple devices, or work in shared spaces where quiet typing is important, the Redragon UCAL K673's wireless features and sound-dampened design make it the more versatile daily driver.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Redragon K721
Redragon UCAL K673
Hall effect (magnetic)
Yes
No
Adjustable actuation helps in games and not in normal typing
Rapid trigger
Yes
No
Faster resets help in games and not in normal typing
Connection
Wired
Bluetooth, 2.4 GHz, Wired
Wireless for several devices and wired for lower latency
Hot-swappable
Yes
No
Switch changes without soldering
Max polling rate
8,000 Hz
1,000 Hz
Higher polling helps competitive FPS and does nothing for typing
- Redragon K721
- Redragon UCAL K673
- Performance
- 9862
- Build quality
- 5857
- Productivity
- 5263
- Customizability
- 5554
- Portability
- 5873
- Layout size: 75%
- Mount style: Gasket Mount
What will you mostly use it for?
The K721 is the clear choice for gaming due to its high polling rate and Hall effect switches with Rapid Trigger. For office, travel, and content creation, the K673's wireless versatility, media knob, and sound-dampened design are more practical. Programming is a tie, as both offer a compact layout and hot-swap sockets, leaving the choice to personal preference for wired performance or wireless convenience.
Pick the Redragon K721
- The K721 has an 8000Hz polling rate for a 0.125ms response time, compared to the K673's 1000Hz.
- It features adjustable Hall effect magnetic switches with Rapid Trigger technology for faster, repeated inputs.
- The K721's vendor description highlights its design for competitive FPS gaming.
Redragon K721 vs UCAL K673 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
12 of 22 specs differ
Redragon K721
Redragon UCAL K673
Switch options
Hall effect (magnetic)
Rapid trigger
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Weight
Dimensions
Backlight
N-key rollover
Released
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Redragon K721 vs UCAL K673: your questions
The Redragon K721 is better for FPS gaming. It is specifically marketed for this use with an 8000Hz polling rate, Hall effect magnetic switches for adjustable actuation, and Rapid Trigger technology to enable faster repeated keystrokes.
Yes, the Redragon UCAL K673 supports a wired USB-C connection in addition to its 2.4GHz wireless and Bluetooth modes. This allows you to use it while charging or for a lag-free connection when needed.
Yes, both the K721 and the K673 feature hot-swappable sockets. The K721 uses hot-swappable Hall effect magnetic switches, while the K673 uses hot-swappable linear red switches, allowing for switch customization on both.
The Redragon UCAL K673 is designed to be quieter. Its vendor description details extensive sound dampening with 3.5mm PO foam and a thick silicone pad under the PCB to minimize noise, making it more suitable for shared office environments.
The Redragon UCAL K673 is equipped with a 4000mAh battery. The manufacturer states this provides long-lasting use for intensive gaming and work applications, ideal for cordless operation.
The Hall effect switches on the Redragon K721 use magnetic sensors instead of physical metal contacts. This allows for adjustable actuation points from 0.01mm to 3.5mm with 0.1mm precision, and they are rated for 100 million keystrokes.
Yes, the Redragon UCAL K673 features a ONE-Knob. According to the vendor, this knob controls both background lighting and media functions like volume, playback, and pause.
The K673 is more portable in terms of connectivity, as its wireless modes eliminate the need for a cable. However, the K721 is physically lighter at 803g compared to the K673's 1240g, making it easier to carry if you don't need wireless.
Both keyboards use standard mechanical switches that are hot-swappable, which typically means the keycaps are also replaceable with other MX-style keycap sets. The K673's listing confirms it includes a keycap puller.
Rapid Trigger is a feature on the Redragon K721 that allows for repeated keystrokes without fully releasing the key. The vendor states this enables higher accuracy and faster actions in high-frequency gaming scenarios.
The vendor description for the K721 lists compatibility with Windows XP through 11. The K673 description does not specify OS compatibility. For definitive support beyond Windows, checking with the manufacturer is recommended.
The K673 includes a removable USB-C cable, a keycap and switch puller, spare switches, and a user manual. The K721's listed package contents are a keyboard and user manual only.
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