AULA F75 Pro vs WOBKEY Rainy 75: $69 Plastic vs $139 Aluminum Keyboard Showdown

If you have spent even five minutes on mechanical keyboard TikTok, YouTube, or Reddit recently, you already know the two names that completely disrupted the hobby: the AULA F75 Pro ($69.99) and the WOBKEY Rainy 75 ($139.99).

Both keyboards pulled off what was long considered impossible: they delivered the creamy, satisfying acoustic perfection of a custom hand-built keyboard straight out of the box, without requiring a single piece of modding tape or hours of switch lubing.

However, they sit at two very different price points with two very different design philosophies. The AULA F75 Pro represents the pinnacle of budget plastic engineering, packing a rotary volume knob and deep “thocky” acoustics for $70. The WOBKEY Rainy 75 doubles the price to $140, trading the knob for a monolithic 4-pound CNC 6063 aluminum block and crisp “marbly clack” HMX switches.

We placed both keyboards side-by-side on our desk, typing over 200,000 words across programming, gaming, and long-form writing. Here is which one you should actually buy.

1. Build Quality: Plastic Practicality vs 4-Pound Aluminum Luxury

The difference in build philosophy is immediately apparent the moment you unbox them:

• AULA F75 Pro (2.15 lbs / 975g): Uses a high-grade ABS plastic top and bottom case. It feels sturdy, well-assembled, and creak-free, but it is fundamentally a lightweight plastic keyboard. The upside? You can toss it into a backpack and carry it to your office or college campus without breaking your back.
• WOBKEY Rainy 75 (4.0 lbs / 1.82 kg): Is milled from a single solid billet of aviation-grade 6063 CNC aluminum. The underside features a stunning mirrored stainless steel and tempered glass back weight. At four full pounds, it feels like a heavy piece of architectural jewelry that anchors itself to your desk like a rock.

Winner: WOBKEY Rainy 75 (by a landslide for premium desk presence).

2. Acoustics & Sound Signature: “Deep Thock” vs “Marble Clack”

Both keyboards sound spectacular, but they produce completely different acoustic frequencies:

• AULA F75 Pro (LEOBOG Star Vector Switches): Produces a deep, warm, and somewhat muted “creamy thock.” It sounds like raindrops hitting hollow bamboo. It is softer on the ears and quiet enough to use in shared open-plan offices without annoying your coworkers.
• WOBKEY Rainy 75 (HMX Violet Switches): Produces a bright, crisp, high-frequency “marble clack.” It literally sounds like glass marbles knocking together on an ice rink. Thanks to its rigid aluminum structure and HMX switches, every key bottom-out has a sharp, addictive tactile pop.

Winner: Tie (Choose AULA for deep muted thock; choose Rainy 75 for crisp, loud, marbly clack).

3. Rotary Knob vs Clean Minimalist Layout

Here is a practical everyday distinction:

• AULA F75 Pro: Features a dedicated textured metallic rotary knob in the top-right corner. It defaults to volume and mute controls, but long-pressing it switches the knob to adjust RGB brightness and lighting speed. For anyone who constantly adjusts Spotify tracks or YouTube audio, it is immensely convenient.
• WOBKEY Rainy 75: Sacrifices the knob in favor of a clean, symmetrical 75% layout with dedicated Del, Home, PgUp, and PgDn navigation keys. Volume must be adjusted via FN + F11 / F12 keyboard shortcuts.

Winner: AULA F75 Pro.

4. Switches & Keycaps: LEOBOG vs HMX

Under the keycaps, both manufacturers brought their A-game:

• AULA F75 Pro: Features factory-lubed LEOBOG Star Vector linear switches topped with side-printed gradient PBT keycaps. The south-facing RGB shines through the side legends beautifully in the dark.
• WOBKEY Rainy 75: Features world-renowned HMX Violet linear switches. HMX is widely considered the gold-standard factory switch maker in 2026. The stem tolerances are tighter, spring ping is completely nonexistent, and the keycaps are premium, ultra-thick 1.5mm double-shot PBT Cherry profile caps.

Winner: WOBKEY Rainy 75.

Final Verdict: Which Keyboard Should You Buy?

🏆 Buy the WOBKEY Rainy 75 ($139.99) if:

• You want a true $400 custom keyboard feel without the hassle. The 4-pound CNC aluminum case and mirrored glass weight are breathtaking.
• You love crisp, loud, marble-like typing acoustics. The HMX Violet switches are an absolute joy to type on.
• Your keyboard never leaves your desk. The heft and build quality make it a permanent desk centerpiece.

🥈 Buy the AULA F75 Pro ($69.99) if:

• You want maximum value under $70. It sounds better than 90% of $200 big-brand gaming keyboards from Corsair and Razer.
• You need a physical rotary volume knob. Quick volume adjustments at your fingertips are hard to give up.
• You plan to travel or commute. At just 2.15 pounds, it is portable enough to throw in a work backpack.