Redragon CASTOR K631 Pro vs UCAL K673 Pro
Get the Redragon UCAL K673 Pro for the 4,000 mAh battery and knob.
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Which one should you get?
Get the
Redragon CASTOR K631 Pro
Build quality in the bottom 35% of 65% boards under $50.
- 65% layout. No function row and no numpad.
Get the
Redragon UCAL K673 Pro
Battery
Build quality in the bottom 45% of 75% boards under $100.
- No numpad.
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 CASTOR K631 Pro
Redragon UCAL K673 Pro
Layout size
65%
75%
Battery
1,600 mAh
4,000 mAh
A larger battery means fewer cables during the day
Mount style
Bottom Mount
Gasket Mount
Knob
No
Yes
Weight
470 g
1,200 g
Heavier boards stay planted and lighter ones travel
- Redragon CASTOR K631 Pro
- Redragon UCAL K673 Pro
- Performance
- 7165
- Build quality
- 5662
- Productivity
- 5469
- Customizability
- 5858
- Portability
- 8575
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Case material: Plastic
- Switch options: Linear
Redragon CASTOR K631 Pro vs UCAL K673 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 19 specs differ
Redragon CASTOR K631 Pro
Redragon UCAL K673 Pro
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Battery
USB-C
Case material
Keycaps
Weight
Dimensions
Backlight
N-key rollover
Released
Compare prices
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