Nuphy Air75 V2 vs Keychron K3 ProBattery Life vs Layout Choice
Choose the Nuphy Air75 V2 for superior battery life and a comprehensive accessory ecosystem, or the Keychron K3 Pro for extensive international layout support.
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4.7 · 54 reviews
from$67at Keychron
Which one should you get?
Get the
Nuphy Air75 V2
Battery Life
Build quality in the top 15% of 75% boards under $100.
- Large 4000mAh battery for extended wireless use.
- Includes internal sound-dampening foams (plate poron, IXPE) and spacebar silicone.
- Wide ecosystem of official accessories like the NuFolio V3, NuPack, and various wrist rests.
- 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.
Get the
Keychron K3 Pro
Layout Choice
Build quality in the top 15% of 75% boards under $100.
- Extensive support for ISO, JIS, and many regional ISO layouts (e.g., ISO-DE, ISO-FR, ISO-Nordic).
- May be available at a lower starting price point.
- Vendor states it includes redesigned stabilizers for less wobble on large keys.
- 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.
Your primary need dictates the winner. If long battery life, a lighter build, and an extensive modding ecosystem are paramount, the Nuphy Air75 V2 is the better investment. If you require a keyboard for a specific international layout like German ISO or French AZERTY, the Keychron K3 Pro is the only viable option between these two. For all other uses, evaluate the trade-offs in weight, battery, and accessory availability against potential cost savings.
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.
Nuphy Air75 V2
Keychron K3 Pro
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Battery
4,000 mAh
1,550 mAh
A larger battery means fewer cables during the day
Case material
ABS, Aluminum
ABS, Aluminum, Plastic
Switch options
Linear, Low-profile Mechanical, Tactile
Clicky, Linear, Tactile
Weight
598 g
525 g
Heavier boards stay planted and lighter ones travel
- Nuphy Air75 V2
- Keychron K3 Pro
- Performance
- 8181
- Build quality
- 8081
- Productivity
- 8980
- Customizability
- 9488
- Portability
- 7977
- Layout size: 75%
- Hot-swappable
- Low profile
- Max polling rate: 1,000 Hz
- QMK
- VIA
What will you mostly use it for?
The Nuphy Air75 V2 takes clear leads for gaming, travel, and modding due to its focus on wireless performance, lighter weight, larger battery, and pre-installed sound-dampening materials. The Keychron K3 Pro is the definitive choice for programmers and users who require specific ISO layouts beyond ANSI. For general office work and content creation, the keyboards are evenly matched, making the decision more about secondary preferences like accessory availability or initial cost.
Pick the Nuphy Air75 V2
- Both offer a 1000Hz polling rate in wired and 2.4GHz modes for low latency.
- The Air75 V2's vendor description emphasizes its 1000Hz wireless performance as being in the 'ranks of pro-gaming keyboards'.
- It includes a Cowberry switch option with a 1.2mm pre-travel designed for rapid firing.
Nuphy Air75 V2 vs Keychron K3 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 26 specs differ
Nuphy Air75 V2
Keychron K3 Pro
Switch options
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
QMK
VIA
N-key rollover
Mac & Windows
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Nuphy Air75 V2
No ISO layout at the stores we track.
Keychron K3 Pro
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
Out of stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
Out of stockDoes not ship to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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Lowest price across stores, Amazon excluded.
Nuphy Air75 V2 vs Keychron K3 Pro: your questions
The Nuphy Air75 V2 has a significantly larger 4000mAh battery compared to the Keychron K3 Pro's 1550mAh. According to Nuphy's lab tests, this can provide up to 220 hours of use with lights off, making it the clear choice for extended wireless operation.
Yes. The Keychron K3 Pro explicitly supports ISO-DE and ISO-FR layouts among others, making it suitable for users who need these specific regional key arrangements. The Nuphy Air75 V2 only lists ANSI layout support.
Yes, both the Nuphy Air75 V2 and Keychron K3 Pro feature hot-swappable sockets. However, Keychron specifies that its hot-swappable version is only compatible with Gateron low-profile mechanical switches and does not support low-profile optical switches.
Yes, both keyboards support QMK and VIA firmware. This allows for extensive key remapping, macro creation, and lighting customization directly through a browser-based configurator on supported operating systems.
The Nuphy Air75 V2 is more portable. It weighs 598g compared to the K3 Pro's 930g, and Nuphy sells dedicated travel accessories like the NuPack carrying case. Its slimmer profile and lighter weight make it easier to transport.
The Nuphy Air75 V2 comes with double-shot PBT keycaps. The Keychron K3 Pro typically comes with low-profile double-shot PBT keycaps, but its Black Special Edition is equipped with dye-sublimated PBT keycaps instead.
The Nuphy Air75 V2 includes several pre-installed sound dampening materials according to its vendor description, specifically plate poron foam, IXPE foam on the PCB, and silicone in the spacebar. The Keychron K3 Pro's description does not mention similar pre-installed foams.
Yes, both keyboards are listed as compatible with macOS and Windows. Each includes extra keycaps to match the Mac modifier key layout (Command, Option) for easy switching.
For 2.4GHz wireless mode, the Nuphy Air75 V2 specifies a 1000Hz polling rate. The Keychron K3 Pro specifies a 1000Hz polling rate for wired mode but a 90Hz polling rate for its wireless mode.
The Nuphy Air75 V2 includes 4 extra switches and 7 extra keycaps in the box. The contents of the Keychron K3 Pro's box are not detailed in the provided specifications.
While both offer tactile and linear switch options for quieter typing, the Nuphy Air75 V2 may have an edge due to its pre-installed sound-dampening foams which can reduce switch noise. The final sound profile will depend heavily on the specific switch choice for either board.
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