Gazzew Boba U4Tx 65g
vsKailh Box Brown
Hear them
Side by side
| Gazzew Boba U4Tx 65g | Kailh Box Brown | |
| Type | Tactile | Tactile |
| Sound | Recorded | Recorded |
| Loudness | -42.5 dB | -40.3 dB |
| Pitch | 1,817 Hz | 2,081 Hz |
| Spring weight | 56.4 g | 55.9 g |
| Actuation force | 35.2 g | 31.7 g |
| Bottom-out force | 65.5 g | 70.7 g |
| Total travel | 3.8 mm | 4 mm |
| Tactile bump | 34 g | 48 g |
Force curves compared
Both curves modeled from each switch's measured actuation, bottom-out and tactile-bump values.
Which should you pick?
The Gazzew Boba U4Tx 65g and Kailh Box Brown are both tactile switches, but they feel and sound different enough to be worth comparing directly.
Gazzew Boba U4Tx 65g runs the heavier spring at 56.4g versus 55.9g — about 0.5g more — so it feels more deliberate under the finger, while Kailh Box Brown is quicker and lighter to press.
On sound, Kailh Box Brown is the louder of the two at -40.3dB versus -42.5dB (2.200000000000003dB quieter), pitched higher at roughly 2,081Hz. It reads as recorded, while Gazzew Boba U4Tx 65g comes across more recorded.
Both are tactile, but Kailh Box Brown has the stronger bump at about 48g versus 34g.
Pick Gazzew Boba U4Tx 65g if you want a heavier, more controlled press and a quieter typing sound. Pick Kailh Box Brown if you'd rather have a lighter, faster press and a louder, more present sound. Use the players above to hear which one you actually prefer.
Full pages
Hear the difference for real
Load either switch into the live simulator and A/B them with your plate, case and keycaps.
Open the simulator →