Microsoft today revealed HoloLens 2, a standalone AR headset and successor to the original HoloLens. While the company is still keeping some specs under wraps, a list of official specs gives further insight into the new headset.

HoloLens 2 was announced today boasting a field of view that’s purportedly twice as large as the original, along with a sharp 47 pixels per degree resolution, hand-tracking, eye-tracking, and improved comfort.

Image courtesy Microsoft

Along with the announcement came some official specifications which we’ll post in full below, but first some highlights:

Resolution

Microsoft isn’t giving the exact resolution but says that the resolution is “2K” per-eye with 2.5K light points per radian; which works out 47 pixels per degree, which we understand to be the same pixel density as the original headset (very sharp compared to contemporary consumer VR headsets). On stage at the reveal, the company made the point that they’ve maintained 47 pixels per degree despite more than doubling the field of view of the headset.

Aspect Ratio

The specs note a 3:2 aspect ratio for the display which is more square than the original headset’s 16:9 ratio. 3:2 is arguably a better shape for an AR headset because it distributes the display more evenly across the horizontal and vertical portions of our vision, though which is best ultimately depends on the use-case.

Field of View

The field of view of the original HoloLens is around 30 degrees horizontally and Microsoft says that HoloLens 2 offers “more than double” the field of view of the original, but isn’t saying in exactly which dimension (which matters considering the change in aspect ratio). It seems we can expect around a 65 degree horizontal field of view, though we’ve reached out to Microsoft for more details on their measurements.

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“Eye-based Rendering”

There’s minimal detail on this, but the HoloLens 2 specs indicate an “eye-based rendering” feature which offers “display optimization for 3D eye position.” We know that the headset includes eye-tracking, and this suggests that the system takes into account not only the IPD (distance between the eyes) of the user, but also the lens-eye distance to adjust rendering for ideal visuals. This should mean a more comfortable experience from user-to-user with automatic software adjustment, though it doesn’t appear at this point that there’s any mechanical adjustments for IPD, nor any indication of the minimum or maximum IPD supported.

Processor

Rumors have turned out to be correct; HoloLens 2 uses a Snapdragon 850 processor, along with Microsoft’s own 2nd generation ‘Holographic Processing Unit’, a co-processor which handles sensor input. The original HoloLens headset used an Intel x86 processor.

Battery Life

Microsoft claims “2–3 hours of active use” for battery life which isn’t exactly stellar, and remains roughly in line with the original HoloLens. This will surely be a sticking point for usability, but with an on-board USB-C connector and “quick charge” capability, it may be possible to significantly extend battery life with an external battery pack depending upon whether or not this would lead to thermal issues.

Glasses

The specs say that HoloLens 2 “fits over glasses,” which is certainly a plus, but it isn’t clear if glasses will impact the eye-tracking used in the headset.

Top Strap

HoloLens 2 also comes with an optional top strap which runs from the back of the headstrap to the front for added comfort. This wasn’t shown at all during the reveal, but could add significant comfort by better distributing weight across the top of the head.

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What We Don’t Know

Aside from lacking specifics on field of view and resolution, weight and brightness are two other major unknowns. Microsoft says that HoloLens 2 ‘increases comfort by 3x’ over the original, but it isn’t entirely clear how they’ve quantified comfort. However it seems clear that they’ve taken steps to better balance the weight of the headset by moving some of the bulk to the rear of the device.

Brightness (both minimum and maximum) is important because it dictates in which environments the headset will be usable. Without enough brightness from the display, outdoor daytime use-case could be rendered useless, while the same goes for minimum brightness in dark environments. Hopefully we’ll learn more about all of these aspects soon.

Here’s the full HoloLens 2 specs that Microsoft has revealed thus far:

Display

  • Optics: See-through holographic lenses (waveguides)
  • Resolution: 2K 3:2 light engines
  • Holographic Density: >2.5K radiants (light points per radian)
  • Eye-based Rendering: Display optimization for 3D eye position

Sensors & Audio

  • Depth: Azure Kinect sensor
  • IMU: Accelerometer, gyroscope, magnetometer
  • Camera: 8MP stills, 1080p30 video
  • Microphone Array: 5 channels
  • Speakers: Built-in, spatial audio

Human Understanding 

  • Hand Tracking: Two-handed fully articulated model, direct manipulation
  • Eye Tracking: Real-time tracking
  • Voice: Command and control on-device, Natural Language with internet connectivity

Environmental Understanding

  • 6DoF Tracking: World-scale positional tracking
  • Spatial Mapping: Real-time environment mesh
  • Mixed Reality Capture: Mixed hologram and physical environment photos and videos

Compute & Connectivity

  • SoC: Qualcomm Snapdragon 850 Compute Platform
  • HPU: 2nd generation custom-built Holographic Processing Unit
  • WiFi: 802.11ac 2×2
  • Bluetooth: 5.0
  • USB: USB Type-C

Power

  • 2–3 hours of active use
  • Charging: USB power delivery – fast charging
  • Thermals: Passively cooled

Fit

  • Single Size: Fits over glasses, size using adjustment dial

Software

  • Windows Holographic OS
  • Edge
  • Remote Assist
  • Layout
  • Guides
  • 3D Viewer
  • OneDrive for Business

HoloLens 2 is available for pre-order today starting at $3,500.

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Ben is the world's most senior professional analyst solely dedicated to the XR industry, having founded Road to VR in 2011—a year before the Oculus Kickstarter sparked a resurgence that led to the modern XR landscape. He has authored more than 3,000 articles chronicling the evolution of the XR industry over more than a decade. With that unique perspective, Ben has been consistently recognized as one of the most influential voices in XR, giving keynotes and joining panel and podcast discussions at key industry events. He is a self-described "journalist and analyst, not evangelist."
  • mellott124

    Their FOV announcement is confusing. Some are reporting 52 degree which isn’t 2x. And they’re saying more than 2x which should be around 70 like you mention. Lets hope they’re not mixing horizontal and diagonal now to be able to say its more than 2x. For example quoting diagonal now as 2x the original horizontal. You never know with marketing folks.

    Otherwise this thing looks amazing. Magic Leap should be worried. Any AR headset manufacturer should be worried.

    • Jim Cherry

      Any hmd manufacturer aimed at business should be worried, that includes htc. However consumer AR is wide open if you could find a way to get fov nearer to consumer vr hmds without going past 1kprice. Technically speaking that might not be feasible for a few years though.

  • oompah

    Thumbs up
    I congratulate Microsoft for the waveguide tech based equipment.
    This is the future.
    & this is the most advanced VR headset on the planet.
    The specs are simply stunning , also it is standalone, wow.
    U dont need a PC to run this.
    This is what I always dreamed about.

    • Andrew Jakobs

      Correction, this is an AR headset NOT a VR headset, two completely different things.

    • Darban

      God forbid the government tries to protect you from people trying to kill you. You don’t know how much tech was originally adopted by the military before it reached your pocket. Grow up hippie.

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