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|image =
|image =
|VR/AR = [[Augmented Reality]]
|VR/AR = [[Augmented Reality]]
|Type = [[Head-mounted display]]
|Type = [[Smart Glasses]]
|Subtype = [[AR Glasses]]
|Subtype = [[Consumer AR]]
|Platform = USB-C tethered (DisplayPort Alt Mode)
|Developer = [[Epson]]
|Manufacturer = [[Epson]]
|Release Date = 2021
|Release Date = 2021
|Price = $579
|Price = $579 USD (BT-40) / $999 USD (BT-40S)
|Display = 2 x Si-OLED binocular
|Website = https://epson.com/For-Work/Wearables/Smart-Glasses/Moverio-BT-40-Smart-Glasses-with-USB-Type-C-Connectivity-/p/V11H969020
|Resolution = 1920x1080 per-eye
|Predecessor = [[Epson Moverio BT-35E]]
|Refresh Rate = 60 Hz
|Display = Si-OLED (see-through)
|Field of View = 34° diagonal
|Resolution = Full HD 1080p binocular
|Horizontal FoV =
|Contrast Ratio = 500,000:1
|Vertical FoV =
|Field of View = 34°
|Diagonal FoV = 34°
|Equivalent Screen Size = 120" at 16 feet
|IPD Range =  
|Ocularity = Binocular
|Ocularity = Binocular
|Sensors = GPS, Accelerometer, Compass, Head Tracking
|Audio = 3.5mm audio jack
|Connectivity = USB-C (DisplayPort Alt Mode)
|Weight = Light (glasses only)
}}
}}


'''Epson Moverio BT-40''' is an [[augmented reality]] [[head-mounted display]] released in 2021.
The '''Epson Moverio BT-40''' is a consumer [[augmented reality]] [[smart glasses]] developed by [[Epson]], released in March 2021. The BT-40 features Epson's Si-OLED technology delivering Full HD 1080p binocular displays with an exceptional 500,000:1 contrast ratio, appearing like a 120-inch screen from 16 feet away with a 34° field of view. Using plug-and-play USB Type-C connectivity with DisplayPort Alt Mode, the glasses work with compatible smartphones, tablets, and laptops without requiring onboard processing. Available as the basic BT-40 ($579) or BT-40S ($999) with an intelligent Android touch controller, the Moverio BT-40 targets AR development, entertainment, and personal viewing applications.


== Specifications ==
== History and Development ==
* '''Display:''' 2 x Si-OLED binocular
* '''Resolution:''' 1920x1080 per-eye
* '''Refresh Rate:''' 60 Hz
* '''Field of View:''' 34° diagonal


* '''Price:''' $579
Epson announced the Moverio BT-40 in March 2021 as the next generation of its Moverio AR smart glasses line. The BT-40 simplified the design by using USB-C tethering to host devices rather than integrated processing, reducing weight and complexity while delivering superior display quality. The BT-40S variant includes the BO-IC400 intelligent touch controller running Android 9.0 for standalone AR applications. The Moverio line has been a pioneer in see-through AR glasses since the original BT-100 in 2011.<ref name="epson">{{cite web |url=https://news.epson.com/news/moverio-bt-40-40s-ar-smart-glasses |title=Epson Unveils Next Generation of Moverio AR Smart Glasses |publisher=Epson |access-date=2025-01-07}}</ref>
 
== Design and Hardware ==
 
=== Display ===
 
Premium Si-OLED technology:
 
* '''Full HD 1080p''' binocular display
* '''Si-OLED technology''' (Silicon OLED)
* '''500,000:1 contrast ratio'''
* '''34° field of view'''
* Appears like '''120-inch screen''' at 16 feet
* See-through optics
* Transparent when not displaying
* Crisp, bright images
* True blacks (OLED)
 
=== Optics ===
 
* Binocular stereoscopic display
* See-through design
* Peripheral vision maintained
* '''Magnetic shade attachment''' (for outdoor use)
* Fits over prescription eyewear
 
=== Sensors ===
 
Built-in tracking:
 
* '''GPS'''
* '''Accelerometer'''
* '''Compass'''
* '''Head tracking'''
* '''Motion tracking'''
* 6DoF development support
 
=== Connectivity ===
 
Plug-and-play design:
 
* '''USB Type-C''' connection
* '''DisplayPort Alt Mode''' required
* Compatible with smartphones
* Compatible with tablets
* Compatible with laptops
* Cable housing unit (belt clip)
* '''3.5mm audio jack'''
 
=== Build ===
 
Comfortable glasses form:
 
* Lightweight glasses design
* Ergonomic fit
* Flexible temple hinges
* Optional nose pads
* Fits wide range of head sizes
* Over-prescription compatible
* Conventional glasses appearance
 
== Variants ==
 
=== BT-40 (Basic) ===
* $579 MSRP
* Glasses only
* USB-C tethered to host device
* Display and sensors only
* Host device provides processing
 
=== BT-40S (with Controller) ===
* $999 MSRP
* Includes '''BO-IC400 controller'''
* '''Android 9.0''' (Google certified)
* Wi-Fi and Bluetooth
* '''13 MP autofocus camera'''
* Flashlight
* Noise-canceling microphone
* Touchscreen interface
* Expandable storage (up to 2 TB)
* IPx2 rated
* 5-hour battery life
* Google Play compatible
 
== Applications ==
 
=== AR Development ===
* Lens development platform
* Prototype testing
* AR experience creation
* SDK support
 
=== Entertainment ===
* Personal cinema experience
* Gaming
* Video viewing
* 120" virtual screen
 
=== Drone Operation ===
* FPV viewing
* Drone control
* Aerial photography
 
=== Professional ===
* Presentations
* Training
* Remote viewing
* Design visualization
 
== Technical Specifications ==
 
{| class="wikitable"
|-
! Specification !! BT-40 !! BT-40S
|-
| Display || Full HD 1080p Si-OLED || Same
|-
| FOV || 34° || Same
|-
| Contrast || 500,000:1 || Same
|-
| Virtual Screen || 120" at 16' || Same
|-
| Connection || USB-C || USB-C + Controller
|-
| Controller || Not included || Android 9.0
|-
| Camera || Via host device || 13 MP (controller)
|-
| Battery || Via host || 5 hours (controller)
|-
| Price || $579 || $999
|}
 
== Reception ==
 
'''Praise:'''
* Full HD 1080p impressive resolution
* 500,000:1 contrast outstanding
* Si-OLED true blacks
* 34° FOV wider than competitors
* 120" equivalent screen immersive
* Plug-and-play convenient
* Fits over prescription glasses
* Lightweight design
* BT-40S Android controller versatile
* Head tracking for AR development
 
'''Criticism:'''
* Requires DisplayPort Alt Mode host
* Limited device compatibility
* No standalone capability (BT-40)
* BT-40S controller separate
* $579-$999 pricing
* Limited mainstream appeal
* Niche use cases
* Wired connection required<ref name="bhphoto">{{cite web |url=https://www.bhphotovideo.com/c/product/1634767-REG/epson_v11h969020_moverio_bt_40_smart_glasses.html |title=Epson Moverio BT-40 |publisher=B&H Photo |access-date=2025-01-07}}</ref>


== See Also ==
== See Also ==
* [[Augmented Reality]]
* [[Epson Moverio BT-35E]]
* [[Head-mounted display]]
* [[Vuzix Blade]]
* [[AR Glasses]]
* [[Xreal Air 2]]
* [[Rokid Max]]
 
== References ==
{{reflist}}


[[Category:AR Glasses]]
[[Category:Devices]]
[[Category:Head-mounted displays]]
[[Category:Augmented Reality Devices]]
[[Category:Smart Glasses]]
[[Category:Epson]]
[[Category:2021 in technology]]
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