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Lenovo Mirage Solo

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Lenovo Mirage Solo
Basic Info
VR/AR Virtual Reality
Type Head-mounted display
Subtype Standalone VR
Platform Google Daydream
Creator Lenovo, Google
Developer Lenovo
Manufacturer Lenovo
Announcement Date January 9, 2018 (CES)
Release Date May 11, 2018
Price $399
Website https://www.lenovo.com/ (discontinued)
Versions Lenovo Mirage Solo with Daydream
Requires Google account
Predecessor None
Successor None (Daydream discontinued)
System
Operating System Daydream OS (Android 8.0 Oreo)
Chipset Qualcomm Snapdragon 835
CPU Octa-core Kryo 280 (4× 2.45 GHz + 4× 1.9 GHz)
GPU Adreno 540
Storage
Storage 64GB
Memory 4GB LPDDR4X
SD Card Slot Yes (microSD up to 256GB)
Display
Display Single 5.5" IPS LCD
Subpixel Layout RGB stripe
Peak Brightness Not specified
Resolution 1280 × 1440 per eye (2560 × 1440 total)
Pixel Density 534 PPI, ~12 PPD
Refresh Rate 75Hz
Persistence Low persistence
Image
Field of View 110°
Horizontal FoV ~110°
Vertical FoV ~110°
Average Pixel Density ~12 PPD
Peak Pixel Density ~12 PPD
Foveated Rendering No
Optics
Optics Fresnel-aspheric lenses
Ocularity Binocular
IPD Range Fixed (software adjustment)
Adjustable Diopter No (glasses compatible)
Passthrough No
Tracking
Tracking 6DoF inside-out (WorldSense)
Tracking Frequency N/A
Base Stations None required
Eye Tracking No
Face Tracking No
Hand Tracking No
Body Tracking No
Rotational Tracking Yes
Positional Tracking Yes
Update Rate 75Hz
Tracking Volume ~1.5m radius
Play Space Standing/limited room-scale
Latency <20ms motion-to-photon
Audio
Audio None (3.5mm jack)
Microphone Yes (dual)
3.5mm Audio Jack Yes
Camera WorldSense tracking cameras
Connectivity
Connectivity Wi-Fi 802.11ac, Bluetooth 5.0 LE
Ports USB-C, 3.5mm audio, microSD
Wired Video No
Wireless Video No
WiFi Wi-Fi 5 (802.11ac)
Bluetooth Bluetooth 5.0 LE
Power Internal battery
Battery Capacity 4000mAh
Battery Life ~7 hours (claimed)
Charge Time ~3 hours
Device
Dimensions 204 × 270 × 180mm
Weight 645g
Material Plastic
Headstrap Adjustable head strap with dial
Haptics Controller haptics
Color Gray
Sensors WorldSense cameras, accelerometer, gyroscope, proximity sensor
Input Daydream Controller (3DoF)
Compliance FCC, CE

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The Lenovo Mirage Solo is the first standalone virtual reality head-mounted display with Google's WorldSense positional tracking technology, developed by Lenovo in partnership with Google, announced at CES on January 9, 2018, and released on May 11, 2018 at a price of $399. As the first standalone Daydream headset and the first with true 6DoF (6 degrees of freedom) positional tracking without external sensors, the Mirage Solo represented a significant advancement over 3DoF mobile VR headsets like the Oculus Go and Google Daydream View. Powered by the Qualcomm Snapdragon 835 processor with a 5.5-inch QHD LCD display (2560 × 1440), the Mirage Solo offered access to the Daydream catalog of over 250 apps and could track user movement up to 1.5 meters in any direction using Google's WorldSense inside-out tracking system.

History and Development

Google Daydream Platform

Platform evolution:

  • Daydream View (2016): Phone-based 3DoF
  • WorldSense announced (2017): Inside-out 6DoF
  • Mirage Solo (2018): First WorldSense device
  • Standalone Daydream realized

Lenovo Partnership

Hardware collaboration:

  • Google provided WorldSense technology
  • Lenovo manufactured hardware
  • Daydream platform integration
  • Enterprise and consumer target

CES 2018 Announcement

Official reveal:

  • First standalone Daydream shown
  • WorldSense tracking demonstrated
  • Q2 2018 availability
  • Sub-$400 price target

May 2018 Launch

Consumer release:

  • $399 pricing
  • Global availability
  • Daydream ecosystem access
  • First 6DoF standalone

Design Philosophy

Standalone 6DoF

Revolutionary for 2018:

  • No PC required
  • No phone required
  • Positional tracking
  • Self-contained VR

WorldSense Technology

Inside-out tracking:

  • Camera-based positioning
  • No external sensors
  • 1.5m tracking radius
  • 6 degrees of freedom

Daydream Ecosystem

Platform integration:

  • 250+ Daydream apps
  • Google services
  • YouTube VR
  • Established content library

Display Technology

Single LCD Panel

QHD display:

  • Size: 5.5 inches
  • Resolution: 2560 × 1440 total (1280 × 1440 per eye)
  • Type: IPS LCD
  • Density: 534 PPI

RGB Stripe

Subpixel arrangement:

  • Full RGB layout
  • Reduced screen door effect
  • Better than PenTile
  • Clearer image

Refresh Rate

Standard mobile VR:

  • 75Hz refresh
  • Adequate for content
  • Low persistence
  • Smooth enough

Field of View

Wide viewing area:

  • 110° field of view
  • Good immersion
  • Competitive specification
  • Fresnel-aspheric lenses

WorldSense Tracking

Google Technology

Inside-out tracking system:

  • Derived from Project Tango
  • Camera and sensor fusion
  • Environmental mapping
  • No external hardware

6DoF Capability

Full positional tracking:

  • Forward/backward movement
  • Left/right movement
  • Up/down movement
  • Head rotation (pitch, yaw, roll)

Tracking Volume

Movement range:

  • ~1.5 meters in any direction
  • Standing experiences
  • Limited room-scale
  • Safety boundaries

Tracking Quality

Performance:

  • Good positional accuracy
  • Occasional drift
  • Works in most environments
  • Better than 3DoF alone

Processing Power

Snapdragon 835

2017 flagship mobile chip:

  • CPU: Octa-core Kryo 280
  • GPU: Adreno 540
  • Process: 10nm
  • Strong for 2018 standalone

Performance

Capable for content:

  • Good game performance
  • Smooth video playback
  • 3D experience quality
  • Adequate for Daydream apps

Memory

  • RAM: 4GB LPDDR4X
  • Storage: 64GB internal
  • Expandable: microSD up to 256GB

Controller

Daydream Controller

3DoF handheld:

  • Orientation tracking only
  • No positional tracking
  • Touchpad input
  • Home and app buttons

Controller Limitation

Mismatch with headset:

  • Headset: 6DoF
  • Controller: 3DoF only
  • Limited interaction
  • Constraint on experiences

Input Model

Pointer-based interface:

  • Laser pointer metaphor
  • Touch to select
  • Swipe gestures
  • Voice available

Audio

No Built-In Speakers

Headphones required:

  • 3.5mm jack provided
  • No integrated audio
  • User provides headphones
  • Cost/weight savings

Dual Microphones

Voice input:

  • Two microphones
  • Voice commands
  • Video recording audio
  • Google Assistant

Battery

Internal Battery

Good capacity:

  • Capacity: 4000mAh
  • Life: Up to 7 hours claimed
  • Real-world: 2.5-3 hours gaming
  • Charging: USB-C, ~3 hours

Battery Performance

Usage dependent:

  • Video: 7 hours possible
  • Gaming: 2.5-3 hours
  • Moderate use: 4-5 hours
  • Adequate for sessions

Physical Design

Form Factor

Substantial headset:

  • 645 grams
  • Large front housing
  • Balanced design
  • Traditional VR shape

Head Strap

Comfortable mounting:

  • Adjustable straps
  • Rear dial tightening
  • Forehead pad
  • Extended wear capable

Ventilation

Thermal management:

  • Passive cooling design
  • Adequate airflow
  • Some heat buildup
  • Acceptable comfort

Software Platform

Daydream OS

Android-based:

  • Android 8.0 Oreo
  • Daydream interface
  • Google services
  • App ecosystem

Daydream Apps

Content library:

  • 250+ apps at launch
  • YouTube VR
  • Google Street View
  • Google Arts & Culture
  • Games and experiences

Google Integration

First-party apps:

  • YouTube VR
  • Google Play Movies
  • Google Photos
  • Google Expeditions
  • Street View

Enterprise Applications

Lenovo VR Classroom

Education deployment:

  • Classroom management
  • Content distribution
  • Teacher controls
  • Educational VR

Business Use

Professional applications:

  • Training
  • Visualization
  • Collaboration
  • Enterprise pilots

Platform Discontinuation

Daydream End

October 2019:

  • Google discontinued Daydream
  • No new certified devices
  • Support continued limited time
  • Platform abandoned

Mirage Solo Legacy

Product status:

  • No software updates
  • Apps still functional (existing)
  • Hardware orphaned
  • WorldSense concept validated

Comparison with Oculus Go

Feature Lenovo Mirage Solo Oculus Go
Price $399 $199
Tracking 6DoF (WorldSense) 3DoF only
Processor Snapdragon 835 Snapdragon 821
Resolution 2560×1440 2560×1440
Controller 3DoF 3DoF
Battery 4000mAh 2600mAh
Platform Daydream Oculus
Weight 645g 468g

Legacy

First Standalone 6DoF

Industry milestone:

  • Proved standalone 6DoF viable
  • Before Oculus Quest
  • WorldSense technology
  • Inside-out tracking validation

Quest Foreshadowing

Market demonstration:

  • Standalone 6DoF demand shown
  • Technology proven
  • User interest validated
  • Quest delivered on promise

Platform Failure

Daydream lessons:

  • Platform support critical
  • Ecosystem needed
  • Google commitment questioned
  • Hardware orphaned

Technical Specifications Summary

Specification Details
Display 5.5" IPS LCD, 1280 × 1440 per eye
Total Resolution 2560 × 1440 (QHD)
Refresh Rate 75Hz
FOV 110°
Tracking WorldSense 6DoF (inside-out)
Processor Snapdragon 835
Memory 4GB RAM, 64GB storage
Battery 4000mAh, ~7 hours
Audio 3.5mm jack (no speakers)
Weight 645g
Controller Daydream Controller (3DoF)
Price $399
Status Discontinued (platform abandoned)

See Also

References

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