Redragon Horus K621 vs Keychron B3 Pro
Get the Redragon Horus K621 for the 1,900 mAh battery.
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Which one should you get?
Get the
Redragon Horus K621
Battery
Build quality in the bottom 10% of 80% boards under $100.
- Switches are soldered. Swapping them means soldering.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- No numpad.
Get the
Keychron B3 Pro
Build quality in the bottom 5% of 75% boards under $50.
- Switches are soldered. Swapping them means soldering.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- 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 Horus K621
Keychron B3 Pro
Layout size
80%
75%
Battery
1,900 mAh
1,200 mAh
A larger battery means fewer cables during the day
Case material
Plastic
ABS
Weight
600 g
410 g
Heavier boards stay planted and lighter ones travel
Backlight
RGB
None
RGB for looks and low light rather than speed
- Redragon Horus K621
- Keychron B3 Pro
- Performance
- 7250
- Build quality
- 4543
- Productivity
- 4770
- Customizability
- 4647
- Portability
- 6179
- Connection: Bluetooth, 2.4 GHz, Wired
- Low profile
- Switch options: Clicky, Linear, Tactile
Redragon Horus K621 vs Keychron B3 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 21 specs differ
Redragon Horus K621
Keychron B3 Pro
Switch options
Mount style
Low profile
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Keycaps
Weight
Dimensions
Typing angle
Backlight
N-key rollover
Mac & Windows
Released
Compare prices
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Lowest price across stores, Amazon excluded.
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