Keychron K2 HE vs Nuphy Air75 V3Hall Effect vs Low Profile
Choose the Keychron K2 HE for advanced gaming features and deep customization, or the Nuphy Air75 V3 for superior portability and a sleek, low-profile design.
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4.8 (49)4.8 · 49 reviews
from$129at Keychron
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from$135at Input Gear
Which one should you get?
Get the
Keychron K2 HE
Hall Effect
Build quality in the top 5% of 75% boards under $150.
- Advanced Gateron double-rail magnetic switches with adjustable actuation points (0.2-3.8mm).
- Extensive firmware support via QMK and VIA for deep customization.
- Wide array of internal sound-dampening foams including EVA, EPDM, and a silicone pad.
- Magnetic switches only. Standard MX switches will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the
Nuphy Air75 V3
Low Profile
Build quality in the top 5% of 75% boards under $150.
- Extremely thin low-profile design at 13mm height for easy portability.
- Includes dedicated travel accessories like the NuFolio case and Airfeet stand.
- Features a 3-stage adjustable kickstand for ergonomic angle adjustment.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-Nordic, ISO-ES, ISO-CH. The other board is sold in those layouts.
Your primary need dictates the choice. For a performance-driven, highly customizable keyboard where gaming features and switch-level tuning are paramount, the Keychron K2 HE is the superior tool. If your workflow demands a keyboard that slips into a bag effortlessly, pairs seamlessly with mobile devices, and offers a sleek, low-profile typing experience, the Nuphy Air75 V3 is the more practical daily companion. Consider the K2 HE an investment in customization and performance, and the Air75 V3 an investment in portability and minimalist design.
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.
Keychron K2 HE
Nuphy Air75 V3
Hall effect (magnetic)
Yes
No
Adjustable actuation helps in games and not in normal typing
Rapid trigger
Yes
No
Faster resets help in games and not in normal typing
Low profile
No
Yes
Case material
ABS, Aluminum, Resin, Wood
ABS, Aluminum, Plastic, Polycarbonate
Switch options
Linear, Magnetic
Clicky, Linear, Low-profile 3.0, Mechanical, Tactile
- Keychron K2 HE
- Nuphy Air75 V3
- Performance
- 9382
- Build quality
- 9190
- Productivity
- 9797
- Customizability
- 98100
- Portability
- 8181
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Battery: 4,000 mAh
- Max polling rate: 1,000 Hz
- Knob
What will you mostly use it for?
The Keychron K2 HE is the clear choice for gaming and modding due to its magnetic switch technology and open-source firmware support. For office work and frequent travel, the Nuphy Air75 V3's thin, lightweight design and travel accessories are more practical. Programmers will favor the K2 HE for its layout options and programmability, while content creators will find both keyboards equally capable with their shared multimedia knob and wireless features.
Pick the Keychron K2 HE
- The K2 HE features Hall effect magnetic switches with adjustable actuation points from 0.2 to 3.8 mm.
- It supports advanced gaming features like Rapid Trigger, Analog Mode, and Last Key Priority (LKP).
- It has a 1000 Hz polling rate in both wired and 2.4 GHz modes for low latency.
Keychron K2 HE vs Nuphy Air75 V3 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
14 of 30 specs differ
Keychron K2 HE
Nuphy Air75 V3
Switch options
Hall effect (magnetic)
Rapid trigger
Hot-swappable
Mount style
Low profile
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron K2 HE
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-CH
In stockShips to you
Input Gear
ISO-DE
Out of stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-CH
In stockDoes not ship to you
Nuphy Air75 V3
Input Gear
ISO-DE
In stockShips to you
Input Gear
ISO-FR
In stockShips to you
Input Gear
ISO-DE
Out of stockShips to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Lowest price across stores, Amazon excluded.
Keychron K2 HE vs Nuphy Air75 V3: your questions
The Keychron K2 HE is better suited for competitive gaming. It features Hall effect magnetic switches with adjustable actuation points, Rapid Trigger, and a 1000 Hz polling rate in its wireless 2.4 GHz mode. These features, according to its product page, are designed for precise control and low latency during fast-paced gameplay.
No, the Nuphy Air75 V3 uses low-profile Nano switches. Its hot-swappable sockets are designed for these specific low-profile switches and are not compatible with standard Cherry MX or other full-height mechanical switches.
Based on manufacturer claims, the Nuphy Air75 V3 has a significantly longer claimed battery life. Nuphy states it can last up to 1200 hours with RGB off, compared to the Keychron K2 HE's lab test result of up to 110 hours. Both keyboards have a 4000mAh battery.
No. According to Keychron, the K2 HE is compatible exclusively with Gateron double-rail magnetic switches. It does not support other magnetic switches like the Gateron Magnetic Jade or Gateron KS-20 Magnetic switches.
The Nuphy Air75 V3 is more portable. It is thinner (13mm vs. over 30mm front height for the K2 HE), lighter (750g vs. 980g), and comes with a dedicated carrying case (NuFolio). Its low-profile design is built for mobility.
Yes, both keyboards are compatible with macOS and Windows. Each includes a system toggle switch and dedicated keycap sets for both operating systems, allowing for seamless switching between platforms.
Yes, but the depth of reprogramming differs. The Keychron K2 HE supports open-source QMK and VIA firmware for extensive remapping and macro creation. The Nuphy Air75 V3 uses the proprietary NuPhy IO 2.0 web-based software for key customization and macro recording.
The Keychron K2 HE has more explicitly listed internal sound-dampening materials. Its description mentions 3.5mm thick EVA acoustic foam, EPDM foam, a silicone pad, and a bottom case PET film. The Nuphy Air75 V3 listing only mentions general sound dampening as a feature.
The Keychron K2 HE offers adjustable typing angles of 5°, 9.34°, and 12.43° using its feet. The Nuphy Air75 V3 features a 3-stage adjustable kickstand providing 4°, 8°, and 10° angles, offering more ergonomic flexibility out of the box.
The Nuphy Air75 V3, with its ultra-thin 13mm profile and sleek, CNC-machined aluminum case, contributes to a cleaner, more minimalist desk aesthetic. Its low-profile design sits flatter on a desk compared to the taller K2 HE.
Yes, both the Keychron K2 HE and the Nuphy Air75 V3 support a knob. The K2 HE lists knob support as a feature, and the Nuphy Air75 V3's description highlights its knob for functions like volume control and zooming.
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