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keyboard comparison

Microsoft Surface Pro Flex with Slim Pen vs Microsoft Surface Pro Signature

Compare layout, connection, battery and typing feel.

Compared products
01Selected
Microsoft Surface Pro Flex keyboard with Slim Pen

Microsoft Surface Pro Flex keyboard with Slim Pen

  • 340 g.
  • Bluetooth connection.
  • Connects to one device at a time.
  • Battery: Built-in rechargeable battery.
  • Up to 41 hours per charge.
KSh 48,000In Stock
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02
Microsoft Surface Pro Signature Keyboard

Microsoft Surface Pro Signature Keyboard

  • 281 g.
  • wired connection.
  • No companion app.
  • Brightness adjustment.
  • Dedicated multimedia keys: function-row shortcuts.
KSh 39,000In Stock
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2 spaces available

Magic Keyboard for iPad Pro 13‑inch (M4)KSh 53,000
iPad Air Magic Keyboard 11" M4KSh 43,500
Logitech G915 X LIGHTSPEED TKLKSh 38,500
Microsoft Surface Pro 12-inch Keyboard with Slim PenKSh 48,000
iPad Pro 13-inch (M4/M5) Magic KeyboardKSh 53,000
Razer Huntsman V3 Pro Tenkeyless 8KHz Niko EditionKSh 42,500
Apple iPad Pro 11-inch M4 Magic KeyboardKSh 47,500
2 of 4 products

Our quick verdict

Choose the Microsoft Surface Pro Flex keyboard with Slim Pen if you want Bluetooth Low Energy, programmable keys and the Windows Settings Surface app. Choose the Microsoft Surface Pro Signature Keyboard if you want a lighter build (281 g).

Weight

Microsoft Surface Pro Flex keyboard with Slim Pen
340 g
Microsoft Surface Pro Signature Keyboard
281 g

Connections

Microsoft Surface Pro Flex keyboard with Slim Pen
Bluetooth Low Energy
Microsoft Surface Pro Signature Keyboard
Wired - Surface magnetic connector

Software

Microsoft Surface Pro Flex keyboard with Slim Pen
Works with the Windows Settings Surface app
Microsoft Surface Pro Signature Keyboard
No companion app

Programmable keys

Microsoft Surface Pro Flex keyboard with Slim Pen
Yes, Copilot key and adaptive touchpad gestures
Microsoft Surface Pro Signature Keyboard
No

Key differences

The main differences to help you choose.

Microsoft Surface Pro Flex keyboard with Slim Pen

  • Bluetooth Low Energy.
  • Programmable keys: Copilot key and adaptive touchpad gestures.
  • Works with the Windows Settings Surface app for settings and updates.
  • Newer model: released in 2024 (vs 2021).
  • Connection type: Wireless and Surface magnetic connector.

Microsoft Surface Pro Signature Keyboard

  • Lighter: 281 g (vs 340 g).
  • Connection type: Wired — Surface magnetic connector.

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

4 priorities selected.
How each product answers the selected priorities
PriorityMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
ConnectionsBluetooth Low EnergyWired - Surface magnetic connector
Weight340 g281 g
SoftwareWorks with the Windows Settings Surface appNo companion app
Programmable keysYes, Copilot key and adaptive touchpad gesturesNo

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
BrandMicrosoftMicrosoft
ModelSurface Pro Flex Keyboard with Slim PenSurface Pro Signature Keyboard
Announced20242021
TypeWireless and detachable keyboard coverDetachable keyboard cover
LayoutCompact notebook-styleCompact notebook-style
ColorBlack; Bright SapphireBlack; Platinum; Sapphire; Forest; Poppy Red
MaterialAlcantara-covered keyboard deckAlcantara-covered keyboard deck

Design

Design specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
Dimensions289.1 × 226.1 × 5.25 mm289.1 × 226.1 × 4.89 mm
Weight340 g281 g

Connectivity

Connectivity specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
Connection TypeWireless and Surface magnetic connectorWired — Surface magnetic connector
Wireless TechnologyBluetooth Low EnergyNot applicable
BluetoothBluetooth Low EnergyNo
Wireless ReceiverNot applicable—
Multi-Device ConnectionNo—
ConnectorSurface Pro magnetic interface connectorSurface Pro magnetic interface connector
Cable——
Cable Length——
Wireless Range——

Keys & Switches

Keys & Switches specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
Switch TypeScissorScissor
SwitchesMechanical scissor keysMechanical scissor keys
Switch OptionsNot applicableNot applicable
Dedicated Multimedia KeysYes — function-row shortcutsYes — function-row shortcuts
Programmable KeysYes — Copilot key and adaptive touchpad gesturesNo
Numeric KeypadNoNo

Battery & Power

Battery & Power specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
Battery TypeBuilt-in rechargeable batteryNot applicable
Battery LifeUp to 41 hours detached continuous typing—
Charging PortCharges while attached to compatible Surface Pro—
Power SwitchNot applicable—
Battery IndicatorYes — Windows battery status—
Battery Capacity——
Charging Time——

Lighting & Features

Lighting & Features specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
BacklightingWhiteWhite
Lighting TechnologyBacklit keysBacklit keys
Brightness AdjustmentYesYes
Ambient Light SensorNoNo
Proximity SensorNoNo
Wrist RestIntegrated keyboard deckIntegrated keyboard deck
Customization SoftwareWindows Settings; Surface appNone
Onboard MemoryNoNo
Profiles / MacrosNoNo
Special FeaturesWorks attached or detached; precision haptic touchpad; Slim Pen storage and charging; Copilot keyLarge glass precision touchpad; Surface Slim Pen 2 storage and charging; protective cover

System Requirements

System Requirements specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
WindowsWindows 11 on compatible Surface ProWindows 10 or Windows 11 on compatible Surface Pro
macOSNoNo
Other Operating SystemsNoNo
Required Port / ConnectionCompatible Surface Pro magnetic connector or Bluetooth Low EnergyCompatible Surface Pro magnetic keyboard connector
SoftwareSurface app optionalNone

What's in the Box

What's in the Box specifications comparison
SpecificationMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Signature Keyboard
In the BoxSurface Pro Flex Keyboard, Surface Slim Pen, safety and warranty documentsSurface Pro Signature Keyboard, safety and warranty documents; Slim Pen 2 only with selected bundle

Similarities

  • Both have brightness adjustment.
  • Same layout: compact notebook-style.
  • Same connector: Surface Pro magnetic interface connector.
  • Same switch type: scissor.
  • Same switches: mechanical scissor keys.
  • Same dedicated multimedia keys: function-row shortcuts.

In summary

Choose Surface Pro Flex for customisable keys and a Bluetooth connection; Surface Pro Signature offers a lighter build.

Back to compared products ↑

In-stock alternatives

Microsoft Surface Pro 12-inch Keyboard with Slim PenFor Microsoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro 12-inch Keyboard with Slim PenView product ↗Apple iPad Pro 11-inch M4 Magic KeyboardFor Microsoft Surface Pro Flex keyboard with Slim PenApple iPad Pro 11-inch M4 Magic KeyboardView product ↗Logitech G915 X LIGHTSPEED TKLFor Microsoft Surface Pro Signature KeyboardLogitech G915 X LIGHTSPEED TKLView product ↗Apple Magic Keyboard with Touch ID (2022)For Microsoft Surface Pro Signature KeyboardApple Magic Keyboard with Touch ID (2022)View product ↗

Related comparisons

Microsoft Surface Pro Flex keyboard with Slim PenMagic Keyboard for iPad Pro 13‑inch (M4)Microsoft Surface Pro Flex keyboard with Slim PeniPad Air Magic Keyboard 11" M4Microsoft Surface Pro Flex keyboard with Slim PenLogitech G915 X LIGHTSPEED TKLMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro 12-inch Keyboard with Slim PeniPad Pro 13-inch (M4/M5) Magic KeyboardMicrosoft Surface Pro Flex keyboard with Slim PenMicrosoft Surface Pro Flex keyboard with Slim PenRazer Huntsman V3 Pro Tenkeyless 8KHz Niko EditionApple iPad Pro 11-inch M4 Magic KeyboardMicrosoft Surface Pro Flex keyboard with Slim Pen
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