Keyboards / Compare

NuPhy Air75 V3 vs ProtoArc XK01 Foldable Keyboard

A

Product A: NuPhy

Air75 V3

96 of 164 known

Change NuPhy Air75 V3

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B

Product B: ProtoArc

XK01 Foldable Keyboard

55 of 164 known

Change ProtoArc XK01 Foldable Keyboard

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All 164 fields

Every value links to where we found it.

Only differences

ANuPhy Air75 V3

BProtoArc XK01 Foldable Keyboard

General

5 of 9 differ

Series

Air V31Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page names the Air V3 series: Air 65 V3, Air 75 V3 and Air 100 V3.

Not available

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

Keyboard Air75 V3(White/Red Nano)-ANSI, Keyboard Air75 V3(White/Brown Nano)-ANSI, Keyboard Air75 V3(White/Blush Nano)-ANSI, Keyboard Air75 V3(Dark/Red Nano)-ANSI, Keyboard Air75 V3(Dark/Brown Nano)-ANSI, Keyboard Air75 V3(Dark/Blush Nano)-ANSI2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Same product on NuPhy's checkout domain. The six ANSI SKUs are Keyboard Air75 V3(White or Dark / Blush, Red or Brown Nano)-ANSI. JIS, DE, UK and FR SKUs are not stored.

XK01, CP011803, CP012683, CP015407, CP015138, CP015406, CP0126842Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboard.jsonRead 15 October 2026Variant SKUs from the product feed: Black CP011803, Gray CP012683, Silver CP015407, Blue CP015138, Green CP015406, White CP012684. XK01 is the model name used on the manual and on Amazon.

GTIN / EAN

6976604918789, 6976604918796, 6976604918802, 6976604918819, 6976604918826, 69766049188332Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Barcode column of the six ANSI SKUs.

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

June 20258Press articlexiaomitoday.com/nuphy-unveils-air75-v3-low-profile-wireless-mechanical-keyboard-with-long-battery-lifeRead 23 October 2026Launch article of June 12, 2025.9Press articlegreen-keys.info/en/nuphy-air75v3-is-now-available%ef%bd%9cnew-lineup-of-japanese-language-layoutsRead 23 October 2026Article of June 12, 2025: ANSI pre-orders from June 10, 2025.

Not available

Status

Available1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page shows an Add to cart button on the access date.

Available1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Store page shows In stock at 43.99 USD on the access date. This is the current price and not a launch price.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$139.958Press articlexiaomitoday.com/nuphy-unveils-air75-v3-low-profile-wireless-mechanical-keyboard-with-long-battery-lifeRead 23 October 2026Article: announced price 139.95 USD. US price. Tax treatment is not stated and US prices are normally without sales tax.9Press articlegreen-keys.info/en/nuphy-air75v3-is-now-available%ef%bd%9cnew-lineup-of-japanese-language-layoutsRead 23 October 2026Listed price 139.95 USD for the ANSI layout.

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

US1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026US store page priced in USD. Amazon.com sells the same model. Other regions are not confirmed for this layout.

ColoursiThe maker's own colour names

Nova White, Nebula Dark1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Colour selector lists Nova White and Nebula Dark. Nebula Dark is sold in the ANSI layout only.2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026SKU names carry White and Dark. Colour names Nova White and Nebula Dark are on the product page.

Black, Gray, Silver, Blue, Green, White1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Color picker: Black, Gray, Silver, Blue, Green, White.

Segment

Portable1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page headline is Wireless Mechanical Keyboard. It pitches the 75% size for small spaces, students and mobile work, and shows a travel case. Stored as portable.

Portable1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Maker sells it as a portable full-size tri-fold travel keyboard.5Reviewcultofmac.comRead 15 October 2026Review treats it as a full-size travel keyboard.

Sold asiParts fitted when sold. A complete keyboard includes switches and keycaps. Barebones includes neither.

Complete1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026In the box heading says PRE-BUILT KEYBOARD. Switches and keycaps are fitted.

Complete1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Sold fully assembled. Package contents list only the keyboard, cable and guide.

Layout

6 of 12 differ

Form factoriLayout size or shape. A percentage describes the layout, not the number of keys.

75 %1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Layout ANSI 75%.

Full size1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page title: Portable Full-Size Tri-Fold Keyboard. Layout with a number keypad.

Layout standardiPhysical key layout standards sold for this model. Regional language names are listed separately.

ANSI1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Scope is the ANSI layout only. The maker also sells JIS, ISO German, ISO British and ISO French layouts. They are not stored.

ANSI1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Maker product photos show a horizontal Enter, a long left Shift, a backslash key above Enter and US legends (@ on 2, double quote on apostrophe), which is ANSI. The manual's special-character pages show a UK ISO drawing. No UK or other regional model is listed on the US store, so only ANSI is stored.

Regional layouts

ANSI - US English1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Layout selector: ANSI - US English.

English US (QWERTY)1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026US legends on the maker photos. The page does not name a layout.

Keys in regional layoutiPhysical typing and function keys in the stated regional layout. Separate media buttons, macro buttons and rotary controls are excluded. A Touch ID or Lock key in a key row counts, as on Apple keyboards.

841Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Number of Keys 84.

1051Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: 105-key layout design with number keypad. Not counted independently.4Retailer pageamazon.com/dp/B09TW35H1ZRead 15 October 2026Listing: 105 keys, button quantity 105. Agrees with the maker page.

Key legends for

macOS5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Review: macOS-biased by default, with all the macOS Fn buttons on the top row. The maker render shows CMD and OPT legends. Windows legends are not confirmed, so only macos is stored.

Windows, macOS1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Photos show dual legends Option/Win and Cmd/Alt on the modifier keys.

Numpad

No1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026The 100% model is the one that features a Numpad. The Air 75 V3 is listed as 75% with 84 keys and the render shows no numpad.

Yes1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: 105-key layout with number keypad.

Function row

Yes1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: Air 75 V3 features the F-row.

Yes1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Photos show Esc and a row of twelve keys labelled F1 to F12 with shortcut icons.

Dedicated arrow keys

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 04 key diagrams show Fn with arrow keys.

Yes1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Photos show a left, up, down and right arrow cluster next to the right Shift.

Navigation keysiAvailability of Home, End, Page Up and Page Down as dedicated keys or through an Fn layer.

Compact6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: the PageDown keycap was swapped for Delete, so PageDown is a dedicated key. The maker render shows PgUp, PgDn, Home and End.

Full1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Photos show separate Home, End, PgUp and PgDn keys in the keypad section.

Key stagger

Row-staggered1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Maker render shows a row-staggered layout.

Row-staggered1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Photos show row-staggered keys.

Bottom row

Not available

Not available

Low profile

Yes1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: thin as 13.2mm. Tech specs list a low-profile switch.

Yes1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: quiet and responsive scissor switches and low-profile keys.

Switches

14 of 25 differ

Switch sensing technologyiKey sensing technology. Hall effect and TMR are different sensor types. A mixed board is identified explicitly. Magnetic switch housing alone does not identify the sensor.

Low-profile mechanical1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Switch Type Low-profile. Switches are mechanical Gateron low-profile 3.0. Stored as low_profile_mechanical.

Scissor1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: Scissor Key Switch Technology, scissor switches and low-profile keys.5Reviewcultofmac.comRead 15 October 2026Review: scissor mechanism.

Switch feel

Linear, Tactile, Silent linear2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Switch cards: Red nano 45gf Linear, Brown nano 50gf Tactile, Blush nano 42gf Linear. Blush is the silent variant (RTINGS: silent linear).3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Spec blocks per colour: Red linear, Brown tactile, Blush linear and silent.

Not available

Switch maker

Gateron1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page FAQ: Why choose Gateron Low-profile 3.0 Switches.

ProtoArc1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Maker names the switch technology as its own.

Switch models

Red nano, Brown nano, Blush nano2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Names as sold: Red nano, Brown nano, Blush nano.3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Switch spec blocks Low-profile Red, Brown and Blush 3.0, sold on the keyboard as nano.

ProtoArc Scissor Key Switch Technology1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Technical specifications, Keys: ProtoArc Scissor Key Switch Technology for stable key-press.

Switch stem

Not available

Not available

Actuation forceiForce at the point where a key registers. Initial spring force is not actuation force. Adjustable switches require a stated actuation setting.

42 to 50gf2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 20263Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 20265Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026

Not available

Bottom-out forceiForce at the end of the switch travel. It is not the initial spring force or the tactile peak.

55 to 65gf2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 20263Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 20265Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026

Not available

Tactile bump forceiPeak force of the tactile bump. It is not the force at initial movement or at bottom-out.

Not available

Not available

Actuation pointiDistance before a key registers. For adjustable boards, the default profile or setting is stated in the source note.

1.7mm3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Pre-travel is 1.7 +/- 0.4 mm for Red, Brown and Blush. TweakTown and Tom's Guide also give about 1.7 mm.

Not available

Total travel

3.2 to 3.5mm2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 20263Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 20265Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026

Not available

Rated keystrokes

Not available

Not available

Factory-lubed switches

Yes3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Switch spec blocks: factory lube yes.

Not available

Adjustable actuation

No7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Header: Output Type Non-Adjustable. Switch type mechanical. Test result cells are behind a membership and were not used.

Not available

Actuation rangeiSelectable actuation distances. These are settings, not a measured usable travel range.

Not available

Not available

Actuation stepiSmallest documented increment between selectable actuation settings.

Not available

Not available

Per-key actuationiActuation can be configured individually for supported keys. The source note identifies any excluded keys.

Not available

Not available

Rapid trigger

Not available

Not available

Minimum rapid trigger movementiSmallest selectable movement used to reset or reactivate a key. This is a setting, not measured accuracy.

Not available

Not available

Multi-action keys

Not available

Not available

SOCD handling

Yes5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Review: customizable SOCD resolutions in the NuPhyIO web app. The maker's name for it is not given.

Not available

Analog inputiCan send variable gamepad or joystick input. Magnetic sensing or adjustable actuation alone does not establish analog output.

Not available

Not available

Hot-swap socketsiSwitches can be replaced without soldering. Magnetic compatibility must be checked separately.

5-pin1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Hot-swappable Support Yes. The switch page states 5-pin mounting.3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Switch spec blocks: 5-pin mounting for all four colours.

Not available

Compatible switches

Gateron low-profile 3.0 switches7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Intro: hot-swappable PCB compatible with Gateron low-profile 3.0 switches.

Not available

Stabilizers

Plate-mounted1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Stabilizer Type Plate Mounted.

Not available

Factory-lubed stabilizers

Not available

Not available

Keycaps

3 of 5 differ

Keycap material

PBT1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Keycap Double-shot PBT.

Not available

Legend method

Doubleshot1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Keycap Double-shot PBT. The JIS review by green-keys calls the legends dye-sub. The maker wording is stored.

Not available

Keycap profile

Low profile5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Review: NuPhy's low-profile nSA keycaps. The profile is stored as low_profile.

Low profile1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page calls them low-profile keys.

Keycap thickness

Not available

Not available

Shine-through legendsiLight passes through the legends. Translucent keycap sides alone do not count.

No7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Sizes and variants table: default keycaps are double-shot PBT that are not shine-through.

Not available

Performance

6 of 11 differ

Polling rate per connectioniDocumented report rates for each connection. Required receivers or optional adapters are identified in the row and source note.

ANuPhy Air75 V3

Connection	Polling rate (Hz)	Receiver or adapter
USB (wired)	1,000	Not available
2.4 GHz	1,000	Included 2.4G dongle
Bluetooth	125	Not available

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: 2.4GHz 1000 Hz, wired 1000 Hz, Bluetooth 5.0 125 Hz. The in-the-box list includes the 2.4G dongle.

BProtoArc XK01 Foldable Keyboard

Not available

Max polling rate

1,000Hz=CalculatedFrom Polling rate per connection

Not available

Polling rate (wired)

1,000Hz=CalculatedFrom Polling rate per connection

Not available

Polling rate (2.4 GHz)

1,000Hz=CalculatedFrom Polling rate per connection

Not available

Polling rate (Bluetooth)

125Hz=CalculatedFrom Polling rate per connection

Not available

Scan rateiHow often the keyboard reads its switches. A USB report rate does not establish a scan rate.

Not available

Not available

Input latency (claimed)iMaker-published input or response latency with conditions in the source note. Do not calculate this from polling rate.

Not available

Not available

Key rollover per connectioniKeys registered simultaneously over the stated connection. Connection is omitted if the source does not specify it.

ANuPhy Air75 V3

Rollover
NKRO

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: N-key Rollover Support Yes. The page does not split it by connection.

BProtoArc XK01 Foldable Keyboard

Not available

Anti-ghosting

Not available

Not available

Adjustable debounce

Not available

Not available

Minimum debounce

Not available

Not available

Measured

None of 7 known

Latency per connection (measured)iReviewer measurements for one tested setup per row. Settings and test method are stated in the source note. Missing conditions are not inferred.

Not available

Not available

Actuation point (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Total travel (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Operating force (measured)iReviewer-measured force at actuation. The switch and actuation setting are stated in the source note.

Not available

Not available

Typing noise (measured)iReviewer-measured A-weighted typing sound level. Measurement distance and conditions are stated in the source note.

Not available

Not available

Battery life (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iReviewer-measured keyboard weight without cable or wrist rest. The tested configuration is stated in the source note.

Not available

Not available

Connectivity

10 of 18 differ

Connections

USB (wired), 2.4 GHz, Bluetooth1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Mode 2.4GHz, Wired (USB-C) or Bluetooth 5.0.

Bluetooth1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Technical specifications, Connection Type: Bluetooth low energy technology. No receiver is listed.

Wireless technology

Not available

Bluetooth Low Energy1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026System requirements: Bluetooth Low Energy.

Bluetooth

5.01Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Bluetooth 5.0. A launch news article says 5.1. The maker page is stored.

5.14Retailer pageamazon.com/dp/B09TW35H1ZRead 15 October 2026Listing title and bullet: Bluetooth 5.1 connects up to three devices. The maker's own page does not give a version.6Reviewtalkofthehouse.com/best-portable-keyboardsRead 15 October 2026XK01 section lists Bluetooth 5.1. Agrees with the Amazon listing.

Bluetooth device slots

34Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 03: Fn+1, Fn+2, Fn+3 select Bluetooth 1, 2 and 3. Fn+4 selects 2.4GHz. Long press for 3 seconds pairs.7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Verdict: Bluetooth with up to three devices at once.

31Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: type across up to three connected wireless devices.

Devices it can switch betweeniDistinct device connections available for switching. Do not infer this by adding wireless modes or paired Bluetooth slots.

45Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Spec table: Paired devices max 4. This fits the manual's three Bluetooth slots plus the 2.4G dongle.

31Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: switch up to 3 devices.

Device switchingiControl used to switch between paired device hosts. Connection-mode and OS switches are described separately.

Keys4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 03: short press of Fn plus a number key switches between devices.

Keys1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: with assigned Bluetooth keys you can type across up to three devices. Photos show three keys labelled 1, 2 and 3 at the top of the keypad.3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 3 and 4: three Bluetooth connection keys 1, 2 and 3. A short press switches device and a long press of 3 to 5 seconds starts pairing.

Receiver connector

Not available

None1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026No receiver in the package contents.

Receiver storage in keyboard

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026The rear edge diagram shows a NuPhy dongle slot. TweakTown also says there is a slot on the back for the dongle.6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: a slot on the back for the 2.4 GHz dongle.

Not available

Receiver shared with other devices

Not available

Not available

Wireless range

Not available

10m1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Wireless operating distance: 10 m (33 ft).

Detachable cable

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026The box holds a USB-C to USB-C cable and the keyboard has a USB-C port.

Not available

Port on keyboard

USB-C4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Same rear edge diagram: a USB-C port.

USB-C3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 2, Product Features: TYPE-C charging port.

Cable plug

USB-C1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Box list: USB-C to USB-C cable, so the plug at the computer end is USB-C.

Not available

Cable

Not available

Not available

Cable length

Not available

Not available

USB passthrough

Not available

Not available

Works withiSystems on which the keyboard works. Configuration software may have narrower system support.

Windows, macOS, Linux, iOS, Android1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Compatible System macOS/Windows/Android/iOS. Linux is added from the Tom's Guide and TweakTown spec tables.5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Spec table: macOS, Windows, Linux.

Windows, macOS, iOS, Android1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026System requirements: Windows Vista, 7, 8, 10 or later. macOS 10.15 or later, iOS or Android device.3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 5 columns: Windows OS, Android OS, iOS, Mac OS.

Consoles

Not available

Not available

Battery

8 of 16 differ

Battery type

Not available

Li-Po1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Technical specifications: rechargeable Li-Po (210 mAh) battery.

Number of batteriesiNumber of replaceable AA or AAA cells required. Internal rechargeable battery packs are not counted here.

Not available

Not available

Battery capacity

4,000mAh1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Battery Capacity 4000mAh. The 2500 mAh figure in the same table is the Air 65 V3.

210mAh1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Technical specifications: 210 mAh.

User-replaceable battery

Not available

Not available

Battery life per mode (claimed)iMaker estimates. Store one published native duration unit per row: hours, days or months. Days and months describe calendar use including idle time, not continuous runtime. Do not convert calendar estimates into hours. Connection, lighting and polling rate are included only when published. Brightness, workload, screen status, sleep settings and up-to qualifiers go in the source note.

ANuPhy Air75 V3

Lighting	Hours (h)
Off	1,200
On	100

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Working Time all lights off up to 1200 hours, all lights on 60~100 hours, both lab test results. Page: measured with RGB lighting turned off for the 1200 hour figure. The up-to value 100 hours is stored for lights on and the 60 hour low end is not. Connection, brightness and effects are not stated.

BProtoArc XK01 Foldable Keyboard

Connection	Lighting	Months
Bluetooth	Off	6

Source1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Technical specifications, Battery life: up to 6 months on a single full charge. The feature text calls the same 6 months the maximum standby time. No usage hours, polling or lighting condition is given. The keyboard has no backlight, so the row is stored as lighting off. The manual states a standby time of at least 150 days.

Longest battery life (claimed)iLongest maker estimate published in hours across the listed modes. Rows published in days or months do not contribute. Conditions can differ between products.

1,200h=CalculatedFrom Battery life per mode (claimed)

Not available

Battery life, lighting offiLongest maker estimate published in hours with lighting off. Calendar-day and calendar-month estimates are not converted and do not contribute.

1,200h=CalculatedFrom Battery life per mode (claimed)

Not available

Battery life, lighting oniLongest maker estimate published in hours with lighting enabled. Calendar-day and calendar-month estimates are not converted and do not contribute. Brightness and display conditions are stated in the source note.

100h=CalculatedFrom Battery life per mode (claimed)

Not available

Battery life, backlight on (claimed)iLongest maker up-to estimate published in calendar days with backlighting enabled. Includes idle time and the source-defined usage pattern, not continuous runtime. Brightness, workload, connection and sleep conditions remain in the table and source note. Hours and months are not converted.

Not available

Not available

Battery life, backlight off (claimed)iLongest maker up-to estimate published in calendar months with backlighting off. Includes idle time and the source-defined usage pattern, not continuous runtime. Workload, connection and sleep conditions remain in the table and source note. Hours and days are not converted.

Not available

6months=CalculatedFrom Battery life per mode (claimed)

Charging port

USB-C4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 02 diagram: one USB-C port with a cable icon on the rear edge.

USB-C1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Page: Type-C charging.

Full charge timeiPublished time for a full charge. Approximate times remain qualified in the source note.

300min10Spec databasegreen-keys.info/en/keyboard/nuphy%EF%B8%8E-air75-v3-us-jisRead 23 October 2026Spec table: charging time about 5 hours for a full charge. Stored as 300 minutes and it is approximate. The maker page does not state a charge time.

120min3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 8, Product Parameters: Charging Time <2 hours. Stored as 120 minutes. Published as less than 2 hours. Charging current 190 mA.

Quick charge

Not available

Not available

Use while charging

Not available

Not available

Solar charging

Not available

Not available

Battery indicator

LED4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Right side RGB bar shows the battery level in colours (red 1 to 10 percent, orange 11 to 95, green 96 to 100). Fn+| turns on a permanent battery display. TweakTown says the sidelights are cosmetic. The manual is stored.

LED3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 2 and page 4: charging indicator and low battery indicator light. It turns red while charging and flashes red when the battery is low.

Build

5 of 8 differ

Case material

Aluminum top case, ABS bottom case1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Top Case Aluminum, Bottom Case ABS.6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: CNC-machined aluminum top case with a brushed finish on the white model and a transparent ABS bottom case.

Not available

Plate material

Polycarbonate1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Plate Material PC.

Not available

Mount style

Gasket1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Mount Type Gasket.

Not available

Flex cuts in PCB

Not available

Not available

Sound dampeningiDampening layers the maker or a review names. Foam whose position in the stack is not stated is foam. Films, pads and silicone parts that fit no other option are other.

Foam, position not stated, Silicone bottom11Reviewgreen-keys.info/en/nuphy-air75-v3-jis-japanese-array-review%EF%BD%9Cthe-appeal-of-a-low-profile-keyboard-with-a-change-in-keystroke-sound-directionRead 23 October 2026JIS layout review: sound-absorbing foam and a silicone sheet on the bottom, visible through the ABS base. RTINGS also mentions layers of internal sound-dampening material. Foam position is not stated, so it is stored as foam.

Not available

Typing anglesiKeyboard slope for each supported foot position, starting with the lowest. An adjustable-foot count does not establish angles. When the maker publishes only the angle with the feet out, that angle is stored alone.

4°, 8°, 10°1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Type Angle 4/8/10 degrees. Page: 3-stage adjustable kickstand.

Not available

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

3 of 7 differ

Backlight

RGB per key1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: North-facing RGB-LED, 20 backlight modes. Per-key lighting is stated by the Tom's Guide spec table.5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Spec table: Backlighting Per-key RGB. TweakTown says the lighting appears to be zone-based. Tom's Guide is stored and the maker page says RGB-LED without a zone count.

None5Reviewcultofmac.comRead 15 October 2026Review of the XK01 dated 30 Aug 2024: Backlight none. The XK01 Plus is the separate backlit model.6Reviewtalkofthehouse.com/best-portable-keyboardsRead 15 October 2026XK01 section lists no backlighting.

LED position

North-facing1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Backlight North-facing RGB-LED. The green-keys spec table says south-facing. The maker is stored.6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: north-facing per-key lighting.

Not available

Lighting zones

Not available

Not available

Brightness levelsiSelectable onboard brightness steps. The source note states whether the off position is included.

Not available

Not available

Side or underglow lighting

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Sections 05 and the RGB status guide: left side and right side RGB light bars with their own brightness, effect, colour and speed keys.

Not available

Lighting sensors

Not available

Not available

Lighting sync

Not available

Not available

Controls

6 of 12 differ

Media keysiPlayback controlled by separate buttons, an Fn layer or a multifunction knob/rocker. Volume controls are listed separately, and knob presses are excluded from the separate media-button count.

Fn layer1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: a Mac multimedia key layout, with shortcut keys for Mission Control, focus, dictation and screenshots. These are Fn-row keys and no separate media buttons are listed.

Fn layer3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 5, Multimedia Function Keys: F-row keys act as brightness, window and application switch, search, previous, play and pause, next, mute and volume keys. Fn+Esc is an Fn lock that switches the keys between F1 to F12 and the multimedia functions.

Separate media buttonsiSeparate physical buttons for playback or mute, counted once each. Fn shortcuts, macro buttons, knob presses and roller presses are excluded.

Not available

03Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 5: playback and volume are on the F-row keys through Fn lock. No separate media buttons.

Volume control

Knob1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: the top-right position takes a control knob. RTINGS says it controls volume by default.4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Knob diagram: volume up, volume down, mute and unmute.

Keys3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 5: mute, volume down and volume up on F10 to F12.

Knobs

11Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026One knob position at the top right. Two knob modules, high and low, are in the box for it.

01Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026No knob or roller in the maker photos.

Programmable knob

Yes1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page, Functional Knob: pair it with NuPhyIO for quicker controls. Page: low-profile knob module and high-profile knob module are both in the box.4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 10: NuPhyIO web configurator with Mac and Win layers.

Not available

Knob press

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Knob diagram: turn for volume up and down, press for mute and unmute.

Not available

Separate macro keysiSeparate physical keys or buttons intended for macros. Excludes ordinary remappable keys, media buttons and a dedicated software-launch button.

01Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026No separate macro keys on the render or in the manual diagrams.4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No separate macro keys in the manual diagrams.

01Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026No macro keys in the maker photos.

Built-in screen

None4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No screen in the manual diagrams or the maker render.

None1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026No screen in the maker photos.

Touchpad

No4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No touchpad in the manual diagrams or the maker render.

No1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026No touchpad. The touchpad model is the separate XK01 TP.

Fingerprint reader

No4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No fingerprint reader in the manual diagrams or the maker render.

No1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026No fingerprint reader in the maker photos.

OS mode switch

Switch4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 01: slide switch for Win mode and Mac mode. Section 02: slide switch for power off, wired and wireless.

Not available

Windows key lock

Not available

Not available

Software

8 of 10 differ

Software

NuPhyIO6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: NuPhyIO website, the portal for the latest customization tools.

Not available

Software runs on

Web6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: NuPhyIO is a web-based customization tool. RTINGS says NuPhyIO 2.0 also has an offline client, which is not stored as a platform.

Not available

Open firmware

Not available

Not available

Onboard memory

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: changes are stored in two on-board profiles. Export is advised before a reset.

Not available

Onboard profilesiProfiles stored on the keyboard, including fixed defaults when the maker counts them. Software-only profiles are excluded.

26Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: only two on-board profiles, one for Windows and one for Mac.

Not available

Macros

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: NuPhyIO can record and create custom macros.

Not available

Macros stored onboardiRecorded command sequences run from keyboard storage without the configuration app. Onboard lighting or remapping alone does not establish this.

Not available

Not available

Key remapping

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: select a key in NuPhyIO and change its function.

Not available

LayersiTotal key mapping layers including the base layer. Lighting effect layers and profile slots are excluded.

44Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 10: Mac mode layers 0 to 3 and Win mode layers 4 to 7. That is 4 layers per OS mode and the base layer is included.

Not available

User firmware updates

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: the NuPhyIO portal upgrades the firmware from the browser.

Not available

Ergonomics

0 of 4 differ

Wrist rest

None1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026The Mono Wrist Rest is a separate paid add-on and not in the box.

None1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026No wrist rest in the package contents or photos.

Wrist rest material

Not available

Not available

Tenting

Not available

Not available

Tenting angles

Not available

Not available

Dimensions and weight

2 of 6 differ

DimensionsiKeyboard body dimensions with fitted keycaps, without wrist rest and with feet folded. Any different measurement condition is stated in the source note. Width is the longest side, depth runs front to back and height is the thickness. Map by size when the maker's labels differ.

Width318.9Depth128.9Front height13.2mm(12.6 × 5.1 × 0.5 in)1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: 318.9 mm x 128.9 mm x 13.2 mm. TweakTown and green-keys describe 13.2 mm as the thickness at the front edge, so it is stored as front height and not as height.

Width386.39Depth119.7Height12.35mm(15.2 × 4.7 × 0.5 in)1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Dimensions, expanded: height 15.21 in (386.39 mm), width 4.71 in (119.70 mm), depth 0.49 in (12.35 mm). Stored by size: width 386.39, depth 119.7, height 12.35. Folded: 215.50 x 119.70 x 20.95 mm. The manual gives 386.4 x 119.7 x 12.4 mm unfolded and 215.5 x 119.7 x 20.9 mm folded.

Dimensions with wrist rest

Not available

Not available

Keyboard weightiKeyboard without cable or wrist rest. Weights that include accessories cannot be stored here. A cable that cannot be removed is included. Replaceable batteries are included, as built-in batteries are.

724g(1.6 lb)1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: 724 grams. TweakTown lists 735 grams and Tom's Guide 1.65 lb. The maker is stored.

297g(10.5 oz)3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026Page 8, Product Parameters: Weight 297 g. The product page gives 10.5 oz (297.72 g).4Retailer pageamazon.com/dp/B09TW35H1ZRead 15 October 2026Item weight 297 g. Agrees with the manual.

Weight including wrist restiKeyboard plus supplied wrist rest, excluding packaging. The source note identifies any included cable.

Not available

Not available

Box dimensions

Not available

Not available

Box weightiOne retail package including its contents. A multi-unit shipping carton weight is excluded.

Not available

Not available

Certifications

None of 2 known

Platform certifications

Not available

Not available

Other certifications

Not available

Not available

In the box

2 of 3 differ

In the box

Air75 V3 Keyboard, USB-C to USB-C Cable, High-Profile Knob Module, Low-Profile Knob Module, 2.4G Dongle, Screwdriver, Keycap/Switch Puller, User Manual/FAQ Download, Extra Keycaps (6 for ANSI-US)1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Air 75 V3 box list. Extra keycaps: ANSI-US 6, JIS 7, ISO-DE 7, ISO-UK 14, ISO-FR 24. The page says old and new packaging ship at random.2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Page repeats the box list with extra keycaps by layout. ANSI-US has 6.

XK01 Tri-Fold Bluetooth Keyboard, USB-C cable for recharging, User Guide1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Package contents: XK01 Tri-Fold Bluetooth Keyboard, USB-C cable for recharging, User Guide. The manual's packing list also names a collapsible phone holder and a storage bag, which this page and the Amazon listing do not.

Cables included

ANuPhy Air75 V3

Type	Count
USB-C to USB-C Cable	1

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Box list: 1 x USB-C to USB-C Cable.

BProtoArc XK01 Foldable Keyboard

Type	Count
USB-C charging cable	1

Source1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Package contents: USB-C cable for recharging.

Spare switches

Not available

Not available

Links

Not compared

Product page

nuphy.com/products/nuphy-air75-v31Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Read in Chrome because curl and WebFetch hit a Vercel security checkpoint and a 429.

www.protoarc.com/products/xk01-tri-fold-bluetooth-keyboard1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026

Spec sheet

Not available

Not available

Manual

cdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdf4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026One-page Quick Guide in English, Chinese, Japanese and Korean, linked as User Manual/FAQ on the product page. The PDF is an image and has no text layer.

cdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdf3Owner's manualcdn.shopify.com/s/files/1/0551/3972/9497/files/XK01_User_Manual_EN.pdfRead 15 October 2026English XK01 User Manual, 11 pages inside a print-layout PDF that also holds the German, French, Italian and Spanish manuals. The EU declaration page in it names the model XK01 TP, which looks like a copy error.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: 1-Year warranty. The page does not name a market.

2years1Maker product pageprotoarc.com/products/xk01-tri-fold-bluetooth-keyboardRead 15 October 2026Warranty info: 2-Year Limited Hardware Warranty (US store).

Both are also in the API. Back to all keyboards.