About HoloLens 2

HoloLens 2 side view.

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Microsoft HoloLens 2 is an untethered holographic computer. It refines the holographic computing journey started by HoloLens (1st gen) to provide a more comfortable and immersive experience paired with more options for collaborating in mixed reality. HoloLens 2 runs on the Windows Holographic OS, which is based on a "flavor" of Windows 10, that provides users, admins, and developers with a robust, performant, and secure platform.


We continue to support ARM32 and ARM64 on HoloLens 2.

A user account is required to use HoloLens 2.

HoloLens components

  • Visor. Contains the HoloLens sensors and displays. You can rotate the visor up while wearing the HoloLens.
  • Headband. To put on the HoloLens, use the adjustment wheel to expand the headband. With the HoloLens in place, tighten the adjustment wheel by turning to the right, until the headband is comfortable.
  • Brightness buttons. When wearing the HoloLens, the brightness buttons are on the left side of the visor near your temple.
  • Volume buttons. When wearing the HoloLens, the volume buttons are on the right side of the visor near your temple.
  • Power button. When wearing the HoloLens, the power button is located on the right side of the rear outer cover.
  • USB-C port. When wearing the HoloLens, the USB-C port is located on the right side of the rear outer cover below the Power button.

In the box

  • Brow pad. You can remove and replace the brow pad, as needed.
  • Overhead strap. When you're wearing the HoloLens while moving around, use the overhead strap to help keep the device in place. When wearing the HoloLens for extended periods, the overhead strap may make the device more comfortable to wear.
  • USB-C charger and cable. The power supply plugs into the power outlet. Use the USB-C cable to connect your HoloLens to the power supply for charging, or to connect your HoloLens to your computer.
  • Microfiber cloth. Use to clean your HoloLens visor.

Power Supply details

The power supply and the USB cable that come with the device are the best supported mechanism for charging. The power supply is an 18W charger. It supplies 9V at 2A.

Charging rate and speed may vary depending on the environment in which the device is running.

In order to maintain/advance Internal Battery Charge Percentage while the device is on, it must be connected minimum to a 15W charger.

Device specifications


Optics See-through holographic lenses (waveguides)
Holographic resolution 2k 3:2 light engines
Holographic density >2.5k radiants (light points per radian)
Eye-based rendering Display optimization for 3D eye position

Visual light camera (VLC)

Specification Design value (nominal)
Focal Length 1.08mm
FOV (diagonal) 96.1 degrees
Coplanar (both point forward and are parallel in view?) Yes (for forward-facing VLC’s)
Stereo baseline 98.6mm (for forward-facing VLC’s)


Head tracking 4 visible light cameras
Eye tracking 2 Infrared (IR) cameras
Depth 1-MP Time-of-Flight depth sensor
Inertial measurement unit (IMU) Accelerometer, gyroscope, magnetometer
Camera 8-MP stills, 1080p30 video

HoloLens 2 Sensors.


Do not cover any of the sensors that are called out in the picture. The head tracking cameras have a very wide FOV, nothing should be around them in addition to not covering them.

Audio and speech

Microphone array 5 channels
Speakers Built-in spatial sound

Compute and connectivity

System on chip Qualcomm Snapdragon 850 Compute Platform details
Holographic processing unit Second-generation custom-built holographic processing unit
Memory 4-GB LPDDR4x system DRAM
Storage 64-GB UFS 2.1
Wi-Fi 802.11ac 2x2
Bluetooth 5.0


Battery Life 2-3 hours of active use. Up to two weeks of standby time.
Battery technology Lithium batteries
Charging behavior Fully functional when charging
Cooling type Passively cooled (no fans)
Power draw In order to maintain/advance Internal Battery Charge Percentage while the device is on, it must be connected minimum to a 15W charger.


Sizing Single size with adjustable band. Fits over eyeglasses
Weight 566 grams

Device capabilities

Human understanding

Hand tracking Two-handed fully articulated model, direct manipulation
Eye tracking Real-time tracking
Voice Command and control on-device; Cortana natural language with internet connectivity

Environment understanding

Six Degrees of Freedom (6DoF) tracking World-scale positional tracking
Spatial mapping Real-time environment mesh
Mixed reality capture Mixed hologram and physical environment photos and videos

Pre-installed software

Windows Holographic Operating System With Windows Holographic OS, Windows 10 users will be able to use some of their apps and games in a mixed reality environment via the HoloLens 2.
3D Viewer 3D Viewer lets you easily view 3D models and animations in real time.
Cortana Cortana, your personal productivity assistant, helps you stay on top of what matters and save time finding what you need.
Dynamics 365 Guides Dynamics 365 Guides will help employees learn new skills faster on HoloLens devices.
Dynamics 365 Remote Assist Microsoft Dynamics 365 Remote Assist empowers technicians to collaborate and solve problems with remote collaborators using Microsoft Teams or Dynamics 365 Remote Assist.
Feedback Hub Feedback Hub lets you provide feedback about Windows and apps by sharing your suggestions or problems.
File Explorer File Explorer provides a graphical user interface for accessing the file systems.
Mail and Calendar The Mail and Calendar apps help you stay up to date on your email, manage your schedule, and stay in touch with your contacts.
Microsoft Edge Microsoft Edge gives you world-class performance with more privacy, more productivity, and more value while you browse.
Microsoft Store The Microsoft Store is your go-to source for apps and games that work with HoloLens.
Movies & TV Movies & TV brings you the latest entertainment in one simple, fast, and elegant app.
OneDrive OneDrive lets you access and edit your files from all your devices anywhere.
Photos Photos lets you view and edit your photos and videos, make movies and create albums.
Settings The Settings app is the place where you customize how Windows Holographic works in detail.
Tips Tips lets you master surprising and lesser-known things you can do in Windows Holographic.

Device certifications


Regulatory information

HoloLens Regulatory: Includes information on temperature, disposal, radio and TV interference, and more.

Warranty Information

Microsoft HoloLens 2 comes with a standard limited warranty.

Purchase is subject to Microsoft Store Terms of Use and Sale. All sales are final. No refunds.

By purchasing HoloLens 2 you agree to the software license agreement.

Not intended for use by children younger than 13.

Package Dimensions

Measurement Units metric Units imperial
Unit Length 378.97 mm 14.920 inches
Unit Width 247.90 mm 9.760 inches
Unit Depth 163.07 mm 6.420 inches
Unit Weight 2.878 kg 6.344 lbs
Exterior Shipper Length 446.00 mm 17.559 inches
Exterior Shipper Width 257.99 mm 10.157 inches
Exterior Shipper Depth 172.01 mm 6.772 inches
Exterior Shipper Weight 3.284 kg 7.240 lbs


  • Unit: The black, retail-style box HoloLens 2 is sold in.
  • Exterior Shipper: The protective shipping packaging around Unit.

Finding the Serial number

The serial number for HoloLens 2 devices is printed underneath the visor.

  1. Lift the visor of the device up.

  2. Look near the brow pad.

  3. You can find the serial number located close to the hinge.


The serial number can also be found via a connected PC:

  1. Plug in the device

  2. Navigate to This PC in file explorer

  3. Right Click and select Properties of the HoloLens device

  4. This will display the series number of the device, as shown in the screenshot below.


Next step(s)