RayNeo iO vs Vuzix M400 Smart Glasses
Side-by-side comparison of specs, features, and pricing
Specs updated
Which should you buy?
Bottom line: the RayNeo iO is the better buy for most people at $1050.99 less, unless you need a built-in camera.
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Buy the RayNeo iO if…
- You want to spend $1050.99 less ($449 vs $1499.99)
- You want the wider 23.5° field of view (vs 16.8°)
- You want the lighter 33g fit (vs 190g)
- You need longer battery life (48 hours vs 2)
Buy the Vuzix M400 Smart Glasses if…
- You want a built-in camera
- You want adjustable lens dimming
Verdict generated from the recorded spec differences shown in the table below — when a spec is missing for either product, it is left out rather than guessed.
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Specs Comparison
Specs last verified
| Specification |  RayNeo iO $449 |  Vuzix M400 Smart Glasses $1,500 |
|---|---|---|
| Price | ||
| Price | $449 | $1,500 |
| Optics | ||
| Optics type | waveguide | — |
| Dimming control | — | ✓ Yes |
| Transparency level | 97% transparency | — |
| Prescription support | ✓ Yes | ✓ Yes |
| Diopter range | Sold with prescription lenses from $608 (RayNeo store); range undocumented | Works alongside prescription glasses / safety frames via mounting options |
| Physical | ||
| Weight (g) | 33 | 190 |
| Foldable | ✕ No | ✕ No |
| IP rating | IP54 | — |
| Battery & power | ||
| Battery life (hours) | 48 | 2 |
| Connectivity | ||
| Connectivity | Bluetooth 5.4 (Apple MFi licensed) | USB-C |
| Compatible devices | iOS, Android | Standalone, iOS, Android |
| Computing | ||
| Operating system | — | Android 9.0 (upgraded builds available; APK sideloading) |
| Chipset | — | Qualcomm Snapdragon XR1 (8-core, 2.52GHz), 6GB RAM, 64GB storage |
| Sensors & input | ||
| Camera | ✕ No | 12.8MP |
| Microphones | 4 | — |
| Speakers | ✕ No | open-ear |
| Tracking | — | 3DoF |
| Voice control | ✓ Yes | — |
| AI assistant | RayNeo AI + Gemini free; ChatGPT, Claude, DeepSeek, Kimi, Qwen via VIP ($9.99/mo) | — |
Buy the RayNeo iO
Buy the Vuzix M400 Smart Glasses
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Jump straight to full specs and where to buy either model, or keep exploring related picks.
RayNeo iO vs Vuzix M400 Smart Glasses: FAQs
Which is newer: the RayNeo iO or the Vuzix M400 Smart Glasses?
The RayNeo iO is newer, released September 2026, versus September 2019 for the Vuzix M400 Smart Glasses.
Which is cheaper: the RayNeo iO or the Vuzix M400 Smart Glasses?
The RayNeo iO costs $449 and the Vuzix M400 Smart Glasses costs $1499.99, making the RayNeo iO $1050.99 cheaper.
Which has the larger field of view: the RayNeo iO or the Vuzix M400 Smart Glasses?
The RayNeo iO has the larger field of view: RayNeo iO measures 23.5 degrees vs 16.8 degrees for the Vuzix M400 Smart Glasses.
Which is lighter: the RayNeo iO or the Vuzix M400 Smart Glasses?
The RayNeo iO is lighter at 33g. The RayNeo iO weighs 33g and the Vuzix M400 Smart Glasses weighs 190g.
What is the main difference between the RayNeo iO and the Vuzix M400 Smart Glasses?
Based on recorded specs, the RayNeo iO leads on price ($1050.99 cheaper) while the Vuzix M400 Smart Glasses leads on camera (Has built-in camera).