Gazzew Boba U4T 62g
vsKailh Box Crystal Royal
Hear them
Side by side
| Gazzew Boba U4T 62g | Kailh Box Crystal Royal | |
| Type | Tactile | Tactile |
| Sound | Recorded | Recorded |
| Loudness | -39.8 dB | -43.2 dB |
| Pitch | 2,397 Hz | 2,273 Hz |
| Spring weight | 58.6 g | 59.1 g |
| Actuation force | 34.1 g | 36.5 g |
| Bottom-out force | 76.7 g | 69.7 g |
| Total travel | 4.1 mm | 4 mm |
| Tactile bump | 58 g | 53 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 U4T 62g and Kailh Box Crystal Royal are both tactile switches, but they feel and sound different enough to be worth comparing directly.
Kailh Box Crystal Royal runs the heavier spring at 59.1g versus 58.6g — about 0.5g more — so it feels more deliberate under the finger, while Gazzew Boba U4T 62g is quicker and lighter to press.
On sound, Gazzew Boba U4T 62g is the louder of the two at -39.8dB versus -43.2dB (3.4000000000000057dB quieter), pitched higher at roughly 2,397Hz. It reads as recorded, while Kailh Box Crystal Royal comes across more recorded.
Both are tactile, but Gazzew Boba U4T 62g has the stronger bump at about 58g versus 53g.
Pick Gazzew Boba U4T 62g if you want a lighter, faster press and a louder, more present sound. Pick Kailh Box Crystal Royal if you'd rather have a heavier, more controlled press and a quieter typing 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.
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