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- Nuphy Air75 V3 vs Melgeek O2
Nuphy Air75 V3 vs Melgeek O2
Genral Info
| Brand | Nuphy Melgeek |
| Model Name | Air75 V3 O2 |
| Series | Air Series Low-Profile Series |
| Type | Low-profile Mechanical (Wireless + Wired) Mechanical (Wireless + Wired + 2.4G) |
| Layout | 75% (Compact) 75% (83 keys) |
| Release Year | 2024 2025 |
| Use Case | Work, Travel, Productivity Work, Productivity, Mac-focused, Light Gaming |
DESIGN & BUILD
| Frame Material | Aluminum top + polycarbonate bottom Polycarbonate (transparent shell) |
| Plate Material | Aluminum Gasket mount |
| Keycap Material | Dye-sublimated PBT (low-profile) PBT (Dye-sublimated) |
| Color Options | Basalt Black, Ionic White, Mist Blue White |
| Dimensions (L × W × H) | 316 × 132 × 16.5 mm Compact low-profile (exact mm not specified) |
| Weight | 600 g 650 g |
| Form Factor | Compact 75% 75% Low-profile |
| Finish | Anodized matte surface Transparent, premium Mac-inspired |
SWITCH & TYPING EXPERIENCE
| Switch Type | Low-profile Mechanical (Hot-swappable) Low-profile Mechanical (Hot-swappable) |
| Switch Options | Gateron Low-profile 2.0 Red / Brown / Blue Kailh Sunlight (Linear, pre-lubed) |
| Mount Type | Gasket mount Upgraded gasket mount with dampening layers |
| Stabilizers | Pre-lubed plate-mounted stabilizers Pre-lubed |
| Number of Keys | 83 |
| Typing Angle | Adjustable with magnetic feet Adjustable 3.5°–5° (magnetic TPU feet) |
| Key Rollover | Full N-key (wired) / 6-key (Bluetooth) Full NKRO (wired) |
| Actuation Force | 45 ± 5 g Light, smooth (low-profile) |
| Key Travel | 1.8 mm actuation / 3.2 mm total Short low-profile travel |
| Typing Feel | Soft, snappy, precise feedback with low noise Soft, quiet (45dB), fingertip contour |
PERFORMANCE
| Response Time (Bluetooth) | ~8–10 ms ~8–10 ms |
| Anti-Ghosting | 100% NKRO 100% |
| Input Lag | Very low (Gaming Mode) Negligible (1000Hz) |
| Latency Mode | Low-latency switch mode Gaming / Power Saving modes |
RGB & LIGHTING
| Backlight Type | Per-key RGB Per-key RGB + side ambient |
| LED Orientation | South-facing South-facing |
| Lighting Effects | 20+ preset modes Multiple modes |
| Custom Effects | Supported (via VIA/NuPhy Console) Via Hive software |
| Brightness Levels | 5-step adjustable Adjustable |
| Control | Software + Function shortcuts Software + FN shortcuts |
SOFTWARE & CUSTOMIZATION
| Firmware | VIA / QMK compatible (open-source) Melgeek Hive |
| Key Remapping | Fully programmable Supported |
| Macro Support | Yes Yes |
| Profile Storage | 3 onboard profiles Multiple profiles |
| Firmware Update | Supported via USB-C Via USB-C |
| Hotkey Shortcuts | Lighting, media, OS switch FN+1–8 device switch, RGB, modes |
SOUND & COMFORT
| Acoustic Dampening | Silicone pad + foam layer Multiple foam & silicone layers |
| Typing Sound Profile | Muted, crisp low-profile sound Quiet thock (~45dB) |
| Gasket Mount | Enhanced gasket feel |
| Noise Reduction | Optimized construction and dampers High (office-friendly) |
| Wrist Rest | Optional accessory No |
| Tilt Feet | 2-level magnetic tilt risers Magnetic adjustable TPU |
Support and compatibility
| Software Support | macOS, Windows, Linux, iOS, Android macOS, Windows, Linux, iOS, Android |
| Supported OS | Cross-platform (Mac native) |
| Plug-and-Play | Yes Yes |
| Layout Options | macOS / Windows keycaps included Mac / Windows switchable |
BATTERY & CONNECTIVITY
| Battery Capacity | 4000 mAh 2500 mAh |
| Battery Type | Rechargeable lithium-ion Lithium |
| Battery Life (No RGB) | Up to 250 hours Up to 13 months / 3000+ hours (BT) |
| Battery Life (RGB On) | 70–90 hours ~40 hours (RGB on) |
| Charging Port | USB Type-C USB Type-C |
| Charge Time | Approx. 3 hours Not specified |
| Wireless Mode | Bluetooth 5.1 Bluetooth 5.1 + 2.4G |
| Wired Mode | USB-C USB-C |
| Multi-Device Pairing | Yes, up to 3 devices Up to 8 devices |
| Switch Between Devices | Fn + 1/2/3 FN + 1–8 |
| Polling Rate (Wired) | 1000 Hz 1000 Hz (2.4G) |
| Polling Rate (Wireless) | 125 Hz Lower (Bluetooth) |
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