Head to head · Prices checked Nov 2, 2026

Nuphy Air75 V3 Moonbow Edition vs Keychron K5 Ultra

Get the Nuphy Air75 V3 Moonbow Edition for the 4,000 mAh battery. Get the Keychron K5 Ultra for the 8,000 Hz polling rate.

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Battery

Nuphy Air75 V3 Moonbow Edition

No reviews

from$150at Nuphy

Compare 2 stores

polling rate

Keychron K5 Ultra

5.0 (4)5.0 · 4 reviews

from$114at Keychron

Compare 3 stores

Quick verdict

Which one should you get?

Get the

Nuphy Air75 V3 Moonbow Edition

Battery

Build quality in the top 35% of 75% boards under $150.

Rules this board out

Low-profile switches and keycaps only. Standard MX keycaps will not fit.
North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Missing ISO-ES, ISO-IT, ISO-PT. The other board is sold in those layouts.
No numpad.

$150 at Nuphy

Get the

Keychron K5 Ultra

polling rate

Build quality in the top 15% of 100% boards under $150.

Rules this board out

Low-profile switches and keycaps only. Standard MX keycaps will not fit.
North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Missing ISO-UK. The other board is sold in those layouts.

$114 at Keychron

What actually differs

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 V3 Moonbow Edition

Keychron K5 Ultra

Layout size
75%
100%
Battery
4,000 mAh
2,600 mAh
A larger battery means fewer cables during the day
Max polling rate
1,000 Hz
8,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
ABS, Aluminum
ABS, Metal, Wood
Switch options
Low-profile 3.0
Clicky, Linear, Tactile

KeebFinder scores

How we score

Nuphy Air75 V3 Moonbow Edition
Keychron K5 Ultra

Performance: 78
91
Build quality: 74
75
Productivity: 84
93
Customizability: 78
89
Portability: 82
56

What they share

Connection: Bluetooth, 2.4 GHz, Wired
Hot-swappable
Low profile
Knob
Sound dampening
Keycaps: PBT

See every spec side by side

Full specs

Nuphy Air75 V3 Moonbow Edition vs Keychron K5 Ultra specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

12 of 27 specs differ

Spec

Nuphy Air75 V3 Moonbow Edition

Keychron K5 Ultra

Typing & switches

Switch options

Low-profile 3.0

Clicky, Linear, Tactile

Hot-swappable

Yes

Mount style

Gasket Mount

—

Low profile

Yes

Sound dampening

Yes

Layout

Layout size

75%

100%

Layout standard

ANSI, ISO, ISO-DE, ISO-FR, ISO-UK, JIS

ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO-PT

Ergonomics

Standard

Knob

Yes

Display

LED

None

Media keys

Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz

8,000 HzBetter

Battery

4,000 mAhBetter

2,600 mAh

USB-C

Yes

Build & materials

Case material

ABS, Aluminum

ABS, Metal, Wood

Plate material

Polycarbonate

Aluminum

Keycaps

PBT

Weight

724 g

566 g

Dimensions

13 x 319 x 129 mm

—

Typing angle

10°

—

Backlight

RGB, north-facing

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2026

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Nuphy Air75 V3 Moonbow Edition

Listed on the product, not split by store: ISO-DE, ISO-UK, ISO-FR.

Keychron K5 Ultra

Keychron (DE)
ISO-DE, ISO-FR, ISO-ES, ISO-IT
In stockDoes not ship to you

Where to buy

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.

Nuphy Air75 V3 Moonbow Edition2 stores