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{{Device Infobox
{{Device Infobox
|image = [[File:Varjo xr-41.png|350px]]
|name = Varjo XR-4
|VR/AR = [[Mixed Reality]], [[Virtual Reality]]
|image =
|VR/AR = [[Mixed Reality]]
|Type = [[Head-mounted display]]
|Type = [[Head-mounted display]]
|Subtype = [[PC-Powered VR]]
|Subtype = [[PC VR]], [[Enterprise XR]]
|Platform = [[SteamVR]], [[OpenXR]]
|Platform = [[SteamVR]], [[OpenXR]]
|Creator =
|Creator = [[Varjo]]
|Developer = [[Varjo]]
|Developer = [[Varjo]]
|Manufacturer = [[Varjo]]
|Manufacturer = [[Varjo]]
|Announcement Date = November 27, 2023
|Announcement Date = October 2023
|Release Date = November 2023
|Release Date = November 2023
|Price = $3,990 (XR-4 Standard Edition, no subscription)
|Price = $3,990 (without subscription)
|Website = https://varjo.com
|Website = https://varjo.com/products/xr-4
|Versions = XR-4, XR-4 Focal Edition, XR-4 Secure Edition
|Versions = XR-4, XR-4 Focal Edition, XR-4 Secure Edition
|Requires = High-end PC
|Requires = High-end PC with DisplayPort
|Predecessor = [[Varjo XR-3]]
|Predecessor = [[Varjo XR-3]]
|Successor = ?????
|Successor =
|Operating System = Windows 10/11 (64-bit)
|Operating System = [[Windows]]
|Chipset =
|Chipset = N/A (tethered PCVR)
|CPU =
|CPU = N/A (PC-powered)
|GPU =
|GPU = N/A (PC-powered)
|HPU =
|HPU = Dedicated video processing unit
|Storage =
|Storage = N/A
|Memory =
|Memory = N/A
|SD Card Slot = No
|SD Card Slot = No
|Display = Mini-LED
|Display = Dual mini-LED
|Subpixel Layout = RGB
|Subpixel Layout = RGB
|Peak Brightness = 200 nits
|Peak Brightness = 200 nits
|Resolution = 3840×3744 per eye
|Resolution = 3840 × 3744 per eye (28+ million pixels total)
|Refresh Rate = 90 Hz (120 Hz experimental)
|Pixel Density = 51 PPD
|Pixel Density = 51 PPD
|Refresh Rate = 90Hz
|Persistence = Low persistence
|Persistence = Low persistence
|Precision = Sub-pixel precision
|Field of View = 120° × 105°
|Field of View = 120° × 105° (H×V)
|Horizontal FoV = 120°
|Horizontal FoV = 120°
|Vertical FoV = 105°
|Vertical FoV = 105°
|Visible FoV = 120° × 105°
|Rendered FoV = 120° × 105°
|Binocular Overlap = 105°
|Average Pixel Density = 51 PPD
|Average Pixel Density = 51 PPD
|Peak Pixel Density = 51 PPD
|Peak Pixel Density = 51 PPD (uniform across FOV)
|Foveated Rendering = Yes (dynamic)
|Foveated Rendering = Yes (dynamic, eye-tracked)
|Optics = Dual-element aspheric lenses
|Optics = Custom aspheric lenses
|Ocularity = Binocular
|Ocularity = Binocular
|IPD Range = 55-75mm (automatic adjustment)
|IPD Range = 56-72mm (automatic adjustment)
|Adjustable Diopter = No
|Adjustable Diopter = Via prescription lens inserts
|Passthrough = Yes (20MP cameras + 300k LiDAR)
|Passthrough = Yes (dual 20MP cameras, photorealistic)
|Tracking = Inside-out (4 cameras)
|Tracking = 6DoF inside-out + optional SteamVR
|Tracking Frequency = 200 Hz
|Tracking Frequency = 200Hz (eye tracking)
|Base Stations = Not required (optional support)
|Base Stations = Optional (SteamVR compatible)
|Eye Tracking = Yes (200Hz)
|Eye Tracking = Yes (200Hz, integrated)
|Face Tracking =
|Face Tracking = No
|Hand Tracking = Yes (integrated)
|Hand Tracking = Yes (via Ultraleap integration)
|Body Tracking =
|Body Tracking = Via third-party solutions
|Rotational Tracking = 6DOF
|Rotational Tracking = Yes
|Positional Tracking = 6DOF
|Positional Tracking = Yes
|Update Rate = 200 Hz
|Update Rate = 90Hz (display), 200Hz (eye tracking)
|Tracking Volume = 7m radius
|Tracking Volume = Room-scale to warehouse-scale
|Play Space = Room-scale
|Play Space = Unlimited (inside-out) / 10m × 10m (SteamVR)
|Latency = ~22ms (passthrough), less than 15ms (VR)
|Latency = <10ms (display), <20ms (passthrough)
|Audio = DTS 3D spatial audio headphones
|Audio = Integrated speakers, 3.5mm jack
|Microphone = Dual noise-cancelling
|Microphone = Yes (dual microphone array)
|3.5mm Audio Jack = Yes
|3.5mm Audio Jack = Yes
|Camera = 2× 20MP RGB, 1× 300k LiDAR sensor
|Camera = 2× 20MP RGB passthrough, LiDAR (300 kpix), ambient light cameras
|Connectivity = USB-C (Thunderbolt 4 compatible)
|Connectivity = DisplayPort 1.4, USB 3.0
|Ports = 1× USB-C
|Ports = DisplayPort, USB-C, 3.5mm audio
|Wired Video = USB-C with DisplayPort Alt Mode
|Wired Video = Yes (DisplayPort 1.4)
|Wireless Video =
|Wireless Video = No
|WiFi =
|WiFi = No
|Bluetooth =
|Bluetooth = No
|Power = USB-C Power Delivery
|Power = Tethered (external power)
|Battery Capacity =
|Battery Capacity = N/A
|Battery Life =
|Battery Life = N/A (tethered)
|Charge Time =
|Charge Time = N/A
|Dimensions = 280mm × 140mm × 120mm
|Dimensions = ~200mm × 130mm × 150mm
|Weight = 665g (headset only), 1021g (complete)
|Weight = 665g (headset) + 356g (headband)
|Material = Carbon fiber composite, magnesium
|Material = Premium plastics, aluminum, fabric
|Headstrap = FlexFit ergonomic system
|Headstrap = Professional headband with counterweight
|Haptics = No
|Haptics = No
|Color = Black with carbon fiber accents
|Color = Black/Gray
|Sensors = 200Hz eye tracking, 9-axis IMU, ambient light sensor
|Sensors = 2× 20MP RGB cameras, LiDAR, 200Hz eye tracking, ambient light sensors, IMU
|Input = Hand tracking, SteamVR controllers
|Input = Controllers (SteamVR), hand tracking (Ultraleap), eye gaze
|Compliance = CE, FCC, IC, UKCA, TAA (Secure Edition)
|Compliance = CE, FCC, enterprise certifications
|Size = Adjustable (S/M/L cushions)
|Cable Length = 5 meters (16.4 ft)
}}
}}
The [[Varjo XR-4]] is a professional [[PC-Powered VR|PC-powered]] [[mixed reality]] and [[virtual reality]] [[head-mounted display]] announced on November 27, 2023, by [[Varjo|Varjo Technologies]].<ref name="varjo-xr4-product" /> Representing the fourth generation of Varjo's mixed reality technology, the XR-4 series eliminated subscription requirements, introduced inside-out tracking as standard, and offered professional-grade specifications at a revised price point for its class.<ref name="varjo-announcement" />
==History==
The XR-4 development began in 2022 following feedback from [[Varjo XR-3]] customers and success of the subscription-free [[Varjo Aero]]. Key development goals included democratizing professional mixed reality, aiming for high visual fidelity in both virtual and passthrough modes, and eliminating external tracking requirements.<ref name="cnbc" />
===Major Improvements over XR-3===
*51 PPD uniform resolution (vs dual-display system)
*20-megapixel [[passthrough cameras]] (vs 12MP)
*[[Inside-out tracking]] standard (vs external base stations)
*Significant price reduction for the standard model with no subscription
*Passthrough resolution of 33 PPD (Standard Edition) or 51 PPD (Focal Edition)


==Technical Specifications==
The '''Varjo XR-4''' is a professional-grade [[mixed reality]] [[head-mounted display]] developed by [[Varjo]], announced in October 2023 and released in November 2023 at a starting price of $3,990. Designed for enterprise and professional applications, the XR-4 delivers what Varjo describes as "human-eye resolution" with 51 pixels per degree across the entire 120° × 105° field of view, powered by dual mini-LED displays with combined resolution exceeding 28 million pixels. The headset features industry-leading passthrough quality through dual 20-megapixel RGB cameras, integrated 200Hz eye tracking for dynamic foveated rendering, and extended-range LiDAR for accurate depth sensing. Notably, the XR-4 eliminates the subscription requirement that was mandatory for previous Varjo headsets, making the premium hardware more accessible to professionals.
===Display Technology===
The XR-4 uses advanced Mini-LED panels:
*'''Resolution''': 3840×3744 per eye (14.8 megapixels total)
*'''Pixel Density''': 51 pixels per degree (uniform)
*'''Panel Type''': Fast-switching Mini-LED with local dimming
*'''Brightness''': 200 nits sustained
*'''Contrast''': 10,000:1 with local dimming
*'''Color Gamut''': 96% DCI-P3, 98% sRGB


===Mixed Reality Cameras===
== History and Development ==
High-resolution passthrough system:
*'''RGB Cameras''': Dual 20-megapixel global shutter sensors
*'''Passthrough Resolution''': 33 PPD (XR-4 Standard Edition), 51 PPD (XR-4 Focal Edition, matching virtual content)
*'''Frame Rate''': 90 fps with ~22ms latency
*'''Dynamic Range''': 14 stops with HDR processing
*'''Low Light''': ISO 25,600 equivalent sensitivity


===LiDAR Depth System===
=== Varjo's Enterprise Focus ===
Enhanced from XR-3:
Varjo, founded in Helsinki, Finland in 2016, has consistently targeted enterprise and professional markets with VR/XR technology that prioritizes visual fidelity above all else. The company name "Varjo" means "shadow" in Finnish, reflecting the founders' ambition to create displays so clear that the boundary between virtual and real becomes indistinguishable.
*'''Resolution''': 300,000 points (300 kpix)
*'''Range''': 0.2m to 7m (extended from 5m)
*'''Accuracy''': ±2mm at 1m distance
*'''Frame Rate''': 30 fps depth updates (Note: some sources may vary)
*'''Coverage''': 94° × 78° depth sensing FOV


==Breakthrough Features==
=== Previous Generations ===
===Gaze-Driven Autofocus (Focal Edition)===
Varjo's product evolution demonstrates relentless pursuit of display quality:
World's first XR autofocus system:<ref name="varjo-autofocus" />
* '''VR-1 (2019)''': Introduced "Bionic Display" with dual resolution zones
*'''Technology''': Liquid lens with 200Hz response
* '''VR-2 (2019)''': Improved Bionic Display with better eye tracking
*'''Focus Range''': 20cm to infinity
* '''XR-1 (2019)''': Added mixed reality with video passthrough
*'''Eye-Coupled''': Focus follows gaze automatically
* '''VR-3 (2020)''': Unified 70 PPD across single display per eye
*'''Latency''': <5ms focus adjustment
* '''XR-3 (2020)''': Premium mixed reality with 12MP passthrough
*'''Applications''': Aims to solve vergence-accommodation conflict
* '''Aero (2021)''': Consumer-adjacent VR headset
* '''XR-4 (2023)''': Current generation flagship


===[[Inside-Out Tracking]]===
=== XR-4 Development Goals ===
Professional-grade markerless tracking:
The XR-4 was developed to address key enterprise requirements:
*'''Cameras''': 4× wide-angle tracking sensors
* Higher resolution passthrough for real-world task accuracy
*'''Algorithm''': Advanced SLAM with ML enhancement
* Wider field of view without sacrificing pixel density
*'''Accuracy''': Sub-millimeter precision
* Subscription-free operation for easier procurement
*'''Range''': 7-meter radius tracking volume
* Enhanced depth sensing for improved mixed reality occlusion
*'''Persistence''': Remembers room layout
* More comfortable fit for extended professional use


===Integrated Hand Tracking===
=== Subscription Elimination ===
Built-in hand interaction:
Previous Varjo headsets required an ongoing Varjo Base subscription ($795/year) for operation. The XR-4 removes this requirement entirely, allowing one-time purchase with full functionality—a significant change that improves total cost of ownership and simplifies enterprise deployment.
*'''Technology''': Computer vision with neural networks
*'''Fingers Tracked''': All 10 fingers with 21 points each
*'''Latency''': 11ms hand-to-photon
*'''Gestures''': Library of standard XR interactions
*'''SDK''': Direct hand data access for developers


==Software Ecosystem==
== Display Technology ==
===No Subscription Model===
Following Aero's success:
*'''One-Time Purchase''': Starting at $3,990 for XR-4 Standard Edition
*'''All Features Included''': No feature tiers within an edition
*'''Free Updates''': Lifetime software support
*'''Professional Tools''': Full SDK access


===Varjo Controller Software===
=== Mini-LED Panels ===
New unified control system:
The XR-4 utilizes advanced mini-LED display technology:
*'''Device Management''': Configure all settings
* '''Resolution''': 3840 × 3744 pixels per eye
*'''Performance Monitoring''': Real-time diagnostics
* '''Total Pixels''': Over 28 million combined
*'''User Profiles''': Save multiple configurations
* '''Pixel Density''': 51 PPD (pixels per degree) uniform across FOV
*'''Cloud Sync''': Settings backup and restore
* '''Panel Type''': Mini-LED with full-array local dimming
* '''Brightness''': 200 nits
* '''Color Space''': 96% DCI-P3 coverage


===Development Support===
=== Human-Eye Resolution ===
*'''[[Unity]] Plugin''': Native XR-4 features
Varjo's claim of "human-eye resolution" is based on:
*'''[[Unreal Engine]] 5''': Full integration with Nanite/Lumen
* Human visual acuity peaks at approximately 60 PPD
*'''[[OpenXR]] Extensions''': Varjo-specific features
* 51 PPD approaches this threshold across the entire field of view
*'''[[NVIDIA Omniverse]]''': RTX rendering support
* Unlike foveated displays, XR-4 maintains this density everywhere
* Text at any size remains sharp and readable
* No visible pixel structure ("screen door effect") under normal viewing


==Variants==
=== Wide Field of View ===
===XR-4 Standard Edition===
The XR-4 achieves 120° × 105° FOV without compromising clarity:
Base professional model:
* 120° horizontal coverage approaches natural peripheral awareness
*All core features
* 105° vertical ensures content above and below remains visible
*20MP passthrough (33 PPD)
* Full binocular overlap for natural depth perception
*300k LiDAR
* Larger than most consumer headsets while maintaining higher pixel density
*$3,990


===[[XR-4 Focal Edition]]===
=== Automatic IPD Adjustment ===
With gaze-driven autofocus:
The optical system automatically adapts to each user:
*All Standard features plus:
* IPD range: 56-72mm
*Liquid lens autofocus system
* Eye tracking detects interpupillary distance
*20MP passthrough (51 PPD)
* Motors adjust lens separation automatically
*Enhanced eye tracking data
* No manual adjustment required
*$9,990
* Ensures optimal clarity for each user
===[[XR-4 Secure Edition]]===
Government/Defense variant:<ref name="varjo-secure" />
*[[TAA]]/[[BAA]] compliant
*Secure boot process
*Offline operation mode
*Manufactured in secure facility
*ITAR-free for international use


==System Requirements==
== Passthrough System ==
===Minimum Specifications===
*'''OS''': Windows 10 version 20H2 or Windows 11
*'''CPU''': Intel Core i9-11900K or AMD Ryzen 9 5900X (or comparable)
*'''GPU''': NVIDIA GeForce RTX 4070, RTX 3080, RTX 2080 Ti, or NVIDIA RTX A5000 (or comparable AMD GPU)
*'''RAM''': 32 GB DDR4-3200
*'''Storage''': 1 TB NVMe SSD
*'''USB''': Thunderbolt 4 or USB-C with DP Alt Mode
===Recommended Specifications===
*'''CPU''': Intel Core i9-13900K or AMD Ryzen 9 7950X
*'''GPU''': NVIDIA RTX 4090 or RTX 6000 Ada
*'''RAM''': 64 GB DDR5
*'''Storage''': 2 TB NVMe Gen4 SSD


==Industry Applications==
=== Photorealistic Mixed Reality ===
===Automotive Industry===
The XR-4's passthrough capability sets industry standards:
Enhanced design validation:
* '''Camera Resolution''': Dual 20-megapixel RGB cameras
*'''[[BMW Group]]''': Full vehicle design in MR
* '''Latency''': Under 20ms end-to-end
*'''[[Stellantis]]''': Global design collaboration
* '''Color Accuracy''': High dynamic range capture
*'''[[Rimac Automobili]]''': Hypercar development
* '''Stereo Reconstruction''': Natural depth perception of real world
*'''[[Polestar]]''': Sustainable material visualization


Use cases:
=== LiDAR Depth Sensing ===
*Design reviews with physical clay models
Extended-range LiDAR enhances mixed reality:
*Ergonomics testing with real drivers
* '''Resolution''': 300,000 points (300 kpix)
*HMI development and testing
* '''Range''': Extended range for large environments
*Virtual showrooms with real products
* '''Applications''': Occlusion handling, depth mapping, spatial understanding
===Healthcare and Medical===
* '''Precision''': Millimeter-accurate depth data
*'''[[Cleveland Clinic]]''': Surgical planning in MR
*'''[[Karolinska Institute]]''': Medical education
*'''[[Brainlab]]''': Image-guided surgery
*'''[[Siemens Healthineers]]''': MRI/CT visualization


Applications:
=== Ambient Light Reconstruction ===
*Pre-operative planning with patient data
Dedicated cameras capture environmental lighting:
*Medical device training
* Real-world lighting analysis
*Anatomy education with cadavers
* Virtual object illumination matching
*Rehabilitation therapy
* Seamless AR/VR blending
* Realistic shadow and reflection rendering


===Architecture and Construction===
== Eye Tracking ==
*'''[[Zaha Hadid Architects]]''': Parametric design review
*'''[[AECOM]]''': Infrastructure visualization
*'''[[Trimble]]''': BIM integration
*'''[[Autodesk]]''': Native Revit support


===Defense and Aerospace===
=== 200Hz Tracking System ===
*'''[[Lockheed Martin]]''': F-35 maintenance
Integrated eye tracking operates at professional-grade specifications:
*'''[[Saab]]''': Gripen pilot training
* '''Frequency''': 200Hz binocular tracking
*'''[[BAE Systems]]''': Ship design review
* '''Accuracy''': 1-degree gaze precision
*'''Various contractors''': Classified programs
* '''Calibration''': Quick single-point calibration
* '''Persistence''': Maintains calibration across sessions


==Market Reception==
=== Dynamic Foveated Rendering ===
===Launch Impact===
Eye tracking enables real-time rendering optimization:
The XR-4 announcement generated significant attention<ref name="skarredghost" />:
* Full resolution only where the user looks
*'''Price Point''': $3,990 for the standard edition was a notable reduction from the previous XR-3.
* Gradual quality reduction toward periphery
*'''No Subscription''': Praised by enterprise customers.
* 40-50% GPU performance savings typical
*'''Feature Set''': Considered comprehensive for its price in the professional market.
* Imperceptible quality difference when properly calibrated
*'''Availability''': Global launch in 40+ countries.<ref name="auganix" />
* Essential for driving 28+ million pixels smoothly


===Critical Response===
=== Gaze Data Applications ===
Professional reviews were generally positive, highlighting advancements:
Enterprise applications leverage gaze information:
*'''[[Road to VR]]''': "The XR-4 redefines what's possible in mixed reality"
* Training analytics and attention tracking
*'''[[UploadVR]]''': "Professional MR at prosumer pricing" (Note: "prosumer pricing" is relative to the high-end professional market)
* User research and usability testing
*'''[[VRFocus]]''': "Inside-out tracking rivals base station precision"
* Hands-free interface navigation
* Process compliance verification
* Cognitive load assessment


====Common Praise====
== Tracking System ==
*Passthrough quality is a key focus, with Varjo aiming for experiences "indistinguishable from natural sight," though user experiences may vary.
*Autofocus system (Focal Edition) "game-changing" for MR.
*Price/performance ratio considered strong for the professional segment.
*Ergonomics significantly improved.


====Criticisms====
=== Inside-Out Tracking ===
*High PC requirements remain.
Primary tracking uses integrated cameras:
*No wireless option at launch.
* No external hardware required
*Hand tracking, while improved, may occasionally lose precision.
* Works in diverse environments
*Passthrough quality, while high, may not always meet the "indistinguishable from reality" claim under all conditions, according to some hands-on reviews.
* Suitable for portable deployment
*Limited battery for future standalone use (if such a version were developed).
* Large-scale tracking capability


==Technical Innovations==
=== SteamVR Compatibility ===
===CloudXR Integration===
For maximum precision, optional outside-in tracking:
Streaming MR capabilities:
* Compatible with SteamVR base stations 1.0 and 2.0
*'''NVIDIA CloudXR''': RTX server rendering
* Sub-millimeter positional accuracy
*'''5G Support''': Ultra-low latency streaming
* Preferred for high-precision simulation
*'''Edge Computing''': Local cloud deployment
* Tracking volume up to 10m × 10m
*'''Multi-User''': Synchronized MR sessions


===AI-Enhanced Processing===
=== Hand Tracking ===
Machine learning throughout:
Via Ultraleap integration:
*'''[[Passthrough]] Enhancement''': AI upscaling and denoising
* Full articulated hand recognition
*'''[[Hand Tracking]]''': Neural network gesture recognition
* Gesture-based interaction
*'''[[Eye Tracking]]''': Predictive gaze estimation
* Controller-free operation when desired
*'''[[SLAM]]''': ML-assisted tracking robustness
* SDK support for custom hand interactions


===Optics Engineering===
== XR-4 Variants ==
*'''Dual-Element Lenses''': Reduced aberrations
*'''Coating Technology''': 99.5% light transmission
*'''Edge-to-Edge Clarity''': <2% distortion at edges
*'''Pancake Design''': Considered but rejected for quality


==Manufacturing Excellence==
=== XR-4 (Standard) ===
===Helsinki Production===
Base configuration for enterprise mixed reality:
In-house manufacturing advantages:
* All core display and tracking features
*'''Quality Control''': 100% optical calibration
* Inside-out and SteamVR tracking options
*'''Lead Time''': 5-day average shipping
* $3,990 starting price
*'''Customization''': OEM versions available
*'''Sustainability''': Carbon neutral facility


===Component Partners===
=== XR-4 Focal Edition ===
*'''Display Panels''': BOE (custom Mini-LED)
Premium variant with revolutionary autofocus:
*'''[[Camera]]s''': Sony (IMX sensors)
* '''World-first gaze-driven autofocus''': Displays adjust focal depth based on where user looks
*'''[[LiDAR]]''': Proprietary Varjo design
* '''Vergence-accommodation matching''': Reduces eye strain and improves comfort
*'''[[Lense]]s''': ZEISS (coating technology)
* '''Natural focus behavior''': Mimics how human eyes naturally focus
* '''Enhanced realism''': Objects at different distances appear naturally sharp
* Higher price point for research and premium applications


==Competitive Landscape==
=== XR-4 Secure Edition ===
===Versus Apple Vision Pro===
Government and defense-rated configuration:
'''XR-4 Advantages''': Higher virtual resolution, PC-powered performance for demanding applications, established professional ecosystem, potentially more robust tracking for certain professional use cases.
* TAA (Trusted Access Architecture) certification
* Secure enclave for sensitive applications
* Meets government security requirements
* Export-controlled availability


'''Vision Pro Advantages''': Standalone operation, advanced consumer-facing OS and apps, highly integrated hand/eye tracking for its interface.
== Enterprise Applications ==
===Versus Meta Quest Pro/3===
'''XR-4 Advantages''': Significantly higher resolution, professional-grade tools and support, superior passthrough fidelity (especially Focal Edition).


'''Quest Advantages''': Standalone, much lower price, larger consumer content library.
=== Simulation and Training ===
===Versus HTC Vive XR Elite===
The XR-4 excels in professional simulation:
'''XR-4 Advantages''': Higher resolution, generally superior passthrough quality, more advanced eye tracking.
* '''Flight Simulation''': Airline and military pilot training
* '''Automotive''': Vehicle design review and virtual prototyping
* '''Medical''': Surgical training and procedure practice
* '''Industrial''': Equipment operation and safety training


'''Vive Advantages''': Standalone option, lower price point.
=== Design and Engineering ===
Professional visualization workflows:
* CAD model review at 1:1 scale
* Collaborative design sessions
* Manufacturing process planning
* Architectural walkthroughs


==Future Roadmap==
=== Research ===
While not officially announced, industry sources suggest:
Academic and scientific applications:
*Standalone version in development
* Psychology and neuroscience studies
*Wireless adapter planned for 2025
* Human factors research
*8K per eye displays in testing
* Training effectiveness evaluation
*AI copilot for enterprise applications
* Attention and perception studies


==Impact on Industry==
=== Remote Collaboration ===
*The XR-4's launch influenced the mixed reality landscape:
Mixed reality communication:
*Set a new benchmark for professional MR features at its price point.
* Teleconferencing with spatial presence
*Reinforced the demand for 50+ PPD for detailed professional use.
* Remote expert assistance
*Accelerated inside-out tracking adoption in the professional space.
* Global team collaboration
*Validated the no-subscription model for enterprise hardware.
* Shared virtual workspaces
*Technologies popularized:
*Gaze-driven autofocus for XR (Focal Edition).
*20MP+ passthrough cameras.
*300k+ point LiDAR integration.
*Uniform high-PPD displays.


==See Also==
== Connectivity and Requirements ==
*[[Mixed reality]]
*[[Varjo|Varjo Technologies]]
*[[Varjo XR-3]]
*[[Varjo Aero]]
*[[Apple Vision Pro]]
*[[LiDAR]]
*[[Inside-out tracking]]
*[[Foveated rendering]]
*[[TAA compliance]]


==References==
=== Connection Interface ===
<references>
Professional-grade connectivity:
<ref name="varjo-announcement">{{cite web|url=https://varjo.com/press-release/varjo-releases-new-xr-4-series-to-deliver-mixed-reality-experiences-indistinguishable-from-natural-sight/|title=Varjo Releases New XR-4 Series to Deliver Mixed Reality Experiences Indistinguishable from Natural Sight|publisher=Varjo|date=November 27, 2023|access-date=June 3, 2025}}</ref>
* '''DisplayPort 1.4''': High-bandwidth video
<ref name="cnbc">{{cite web|url=https://www.cnbc.com/2023/11/27/finnish-startup-varjo-launches-3990-xr-4-mixed-reality-headset.html|title=Finnish startup Varjo launches $3,990 XR-4 mixed reality headset|publisher=CNBC|date=November 27, 2023|access-date=June 3, 2025}}</ref>
* '''USB 3.0''': Data and tracking
<ref name="skarredghost">{{cite web|url=https://skarredghost.com/2023/11/27/varjo-xr-4-price-resolution/|title=Varjo announces XR-4 mixed reality headset with impressive resolution|publisher=The Ghost Howls|date=November 27, 2023|access-date=June 3, 2025}}</ref>
* '''3.5mm Audio''': Headphone output
<ref name="auganix">{{cite web|url=https://www.auganix.org/xr-news-varjo-announces-new-xr-4-series-of-headsets/|title=Varjo announces new XR-4 series headsets|publisher=Auganix|date=November 2023|access-date=June 3, 2025}}</ref>
* '''External Power''': Required for operation
<ref name="varjo-xr4-product">{{cite web|url=https://varjo.com/products/xr-4/|title=Mixed Reality Headset for Professionals – Varjo XR-4 Series|publisher=Varjo|access-date=June 3, 2025}}</ref>
 
<ref name="varjo-secure">{{cite web|url=https://varjo.com/products/xr-4-secure-edition/|title=Mixed reality headset with TAA certification – Varjo XR-4 Secure Edition|publisher=Varjo|access-date=June 3, 2025}}</ref>
=== PC Requirements ===
<ref name="varjo-autofocus">{{cite web|url=https://varjo.com/vr-lab/xr-4-features-explained-worlds-first-gaze-driven-xr-autofocus-camera-system/|title=XR-4 Features Explained: World's First Gaze-Driven XR Autofocus Camera System|publisher=Varjo|date=2023|access-date=June 3, 2025}}</ref>
Enterprise workstation specifications:
</references>
* '''GPU''': NVIDIA RTX 4080 or Quadro RTX equivalent (minimum RTX 3080)
* '''CPU''': Intel Core i9 or AMD equivalent
* '''RAM''': 32GB minimum, 64GB recommended
* '''Storage''': NVMe SSD
 
=== Software Ecosystem ===
Wide compatibility across professional tools:
* '''Varjo Base''': Native runtime and configuration
* '''SteamVR''': Gaming and general VR
* '''OpenXR''': Cross-platform standard
* '''Unity''': Development platform
* '''Unreal Engine''': High-fidelity applications
* '''Enterprise Software''': CAD viewers, simulation platforms
 
== Physical Design ==
 
=== Build Quality ===
Professional construction throughout:
* Premium materials for enterprise durability
* Comfortable fit for extended sessions
* Replaceable components for serviceability
* Clean industrial design aesthetic
 
=== Weight Distribution ===
Total weight managed through design:
* Headset: 665g
* Headband: 356g
* Rear counterweight balances front optics
* Pressure distributed across forehead and crown
 
=== Cooling ===
Thermal management for sustained operation:
* Passive and active cooling systems
* Maintains performance during long sessions
* Quiet operation for professional environments
 
== Pricing and Business Model ==
 
{| class="wikitable"
|-
! Edition !! Price !! Key Differentiators
|-
| XR-4 || $3,990 || Standard professional mixed reality
|-
| XR-4 Focal Edition || ~$9,900 || Gaze-driven autofocus displays
|-
| XR-4 Secure Edition || Contact sales || Government/defense security certification
|}
 
Note: No subscription required (unlike previous Varjo headsets).
 
== Technical Specifications Summary ==
 
{| class="wikitable"
|-
! Specification !! Details
|-
| Display || Dual mini-LED, 3840 × 3744 per eye
|-
| Total Pixels || 28+ million
|-
| Pixel Density || 51 PPD (uniform)
|-
| Field of View || 120° × 105°
|-
| Refresh Rate || 90Hz
|-
| Color Space || 96% DCI-P3
|-
| Eye Tracking || 200Hz, 1° accuracy
|-
| Passthrough || Dual 20MP RGB + LiDAR
|-
| Tracking || Inside-out + optional SteamVR
|-
| IPD || 56-72mm (automatic)
|-
| Weight || 665g + 356g headband
|-
| Price || From $3,990
|}
 
== See Also ==
* [[Varjo]]
* [[Varjo XR-3]]
* [[Varjo Aero]]
* [[Enterprise XR]]
* [[Mixed Reality]]
* [[Eye Tracking]]
* [[Foveated Rendering]]
* [[LiDAR]]
 
== References ==
{{Reflist}}


[[Category:Devices]]
[[Category:Devices]]
[[Category:Virtual Reality Devices]]
[[Category:Mixed Reality Devices]]
[[Category:VR Headsets]]
[[Category:VR Headsets]]
[[Category:MR Headsets]]
[[Category:Virtual Reality Headsets]]
[[Category:Mixed Reality Headsets]]
[[Category:Products introduced in 2023]]
[[Category:Finnish brands]]
[[Category:Head-mounted displays]]
[[Category:Head-mounted displays]]
[[Category:Mixed Reality]]
[[Category:PC VR]]
[[Category:Enterprise XR]]
[[Category:Varjo]]
[[Category:Eye Tracking]]
[[Category:2020s VR]]
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