Keychron K3 V2 vs Nuphy Air75 HEWireless or Hall Effect
Get the Keychron K3 V2 for Bluetooth use and ISO layout choices, or the Nuphy Air75 HE for Hall Effect switches, adjustable actuation, and Rapid Trigger.
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4.8 (2,258)4.8 · 2,258 reviews
from$105at Keychron (DE)
No reviews
from$130at Nuphy
Which one should you get?
Get the
Keychron K3 V2
Build quality in the bottom 50% of 75% boards under $150.
- Bluetooth connectivity alongside wired USB-C.
- Available in ANSI, JIS, and multiple ISO layout variants.
- Vendor-described Windows and macOS keycaps, plus two-level adjustable rubber feet.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the
Nuphy Air75 HE
Hall effect
Build quality in the bottom 45% of 75% boards under $150.
- Magnetic Hall Effect switches with adjustable actuation and Rapid Trigger.
- 8000 Hz polling rate and N-key rollover.
- Aluminum plate, PBT and PC keycaps, and PCB foam, plate foam, and bottom silicone.
- Magnetic switches only. Standard MX switches will not fit.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
Choose the Keychron K3 V2 for Bluetooth, ISO or JIS layout options, and vendor-described Windows and macOS keycaps. Choose the Nuphy Air75 HE for magnetic Hall Effect switches, adjustable actuation, Rapid Trigger, and its 8000 Hz polling rate. Both are low-profile, hot-swappable 75% boards, but their connection and switch systems serve different priorities.
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 K3 V2
Nuphy Air75 HE
Hall effect (magnetic)
No
Yes
Adjustable actuation helps in games and not in normal typing
Rapid trigger
No
Yes
Faster resets help in games and not in normal typing
Connection
Bluetooth, Wired
Wired
Wireless for several devices and wired for lower latency
Switch options
Clicky, Linear, Tactile
Magnetic
Mount style
Tray Mount
Plate Mount
- Keychron K3 V2
- Nuphy Air75 HE
- Performance
- 6398
- Build quality
- 6563
- Productivity
- 6576
- Customizability
- 6868
- Portability
- 8066
- Layout size: 75%
- Hot-swappable
- Low profile
- Case material: Aluminum, Plastic
What will you mostly use it for?
The Air75 HE is the clearer fit for gaming centered on magnetic-switch features and fast polling. The K3 V2 is more flexible for wireless setups, travel, and buyers who need an ISO or JIS layout. Programming and switch customization are closer calls, since both support hot-swapping, while their distinct layout, connection, and switch options suit different preferences. For content creation, the K3 V2's wireless connection and broader layout selection give it the edge.
Pick the Nuphy Air75 HE
- Hall Effect magnetic switches support adjustable actuation from 0.1 mm to 3.3 mm.
- Rapid Trigger and an 8000 Hz polling rate are listed features.
- It is wired only, so it does not offer the K3 V2's Bluetooth connection.
Keychron K3 V2 vs Nuphy Air75 HE specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 26 specs differ
Keychron K3 V2
Nuphy Air75 HE
Switch options
Hall effect (magnetic)
Rapid trigger
Hot-swappable
Mount style
Low profile
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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Lowest price across stores, Amazon excluded.
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron K3 V2
- Go to Keychron
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-ES
Out of stockShips to you
- Go to Keychron (DE)
Keychron (DE)
ISO-DE, ISO-UK, ISO-ES
In stockDoes not ship to you
Nuphy Air75 HE
No ISO layout at the stores we track.
Keychron K3 V2 vs Nuphy Air75 HE: your questions
The Nuphy Air75 HE is the gaming-focused choice in this comparison, with Hall Effect magnetic switches, adjustable actuation, Rapid Trigger, and an 8000 Hz polling rate. It connects by wire only.
Yes. The K3 V2 supports Bluetooth and wired USB-C connectivity, and Keychron's product description identifies Bluetooth 5.1.
No. Its listed connection is wired only, with USB-C connectivity. The Keychron K3 V2 is the option here with Bluetooth.
Yes. NuPhy's product description says the magnetic switches support adjustable actuation points from 0.1 mm to 3.3 mm. The board also lists Rapid Trigger.
No. The K3 V2 compatibility rules limit it to low-profile switches, and the vendor specifically describes its hot-swappable optical version as using low-profile Keychron optical switches. Standard MX switches are not compatible.
No. The Air75 HE uses magnetic switches, and its compatibility rules specify magnetic switches only. Standard MX switches will not fit.
Neither board supports standard MX keycaps according to its compatibility rules, both require low-profile keycaps. The K3 V2 also has north-facing LEDs, while the Air75 HE has south-facing LEDs with its own shine-through and sculpted-cap limitations.
Yes. Its listed layout options include several ISO variants, including ISO-UK, ISO-DE, and ISO-ES, as well as ANSI and JIS. The Air75 HE is listed as ANSI only.
No. The Air75 HE is listed as ANSI, and its compatibility rules say ISO variants are not offered. The K3 V2 has several ISO layout options.
Both are listed as hot-swappable. The K3 V2 vendor describes swapping compatible low-profile Keychron optical switches, while the Air75 HE uses magnetic switches.
The Air75 HE has a listed weight of 702 g, while no weight is given for the K3 V2 in its specifications here. Keychron describes the K3 V2 as ultra-slim and lightweight, and it supports Bluetooth for wireless use.
Both list Mac/Windows support. The K3 V2 vendor also describes included keycaps for Windows and macOS, while NuPhy lists NuPhyIO remapping and macro support for major desktop platforms.
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