# RayNeo iO vs Vuzix M400 Smart Glasses

Canonical comparison page: https://www.arcompare.com/compare/rayneo-io-vs-vuzix-m400/
Specs updated: 2026-10-06 (the newer of the two products' update dates)
Source: AR Compare spec database (https://www.arcompare.com/data/). Unknown values are "—", never guessed.

**Bottom line: the RayNeo iO is the better buy for most people at $1050.99 less, unless you need a built-in camera.**

- 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), and you need longer battery life (48 hours vs 2).
- Buy the Vuzix M400 Smart Glasses if you want a built-in camera and you want adjustable lens dimming.

## Specifications

| Spec | RayNeo iO | Vuzix M400 Smart Glasses |
| --- | --- | --- |
| Price | $449 | $1,500 |
| 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 |
| Weight (g) | 33 | 190 |
| Foldable | ✕ No | ✕ No |
| IP rating | IP54 | — |
| Battery life (hours) | 48 | 2 |
| Connectivity | Bluetooth 5.4 (Apple MFi licensed) | USB-C |
| Compatible devices | iOS, Android | Standalone, iOS, Android |
| Operating system | — | Android 9.0 (upgraded builds available; APK sideloading) |
| Chipset | — | Qualcomm Snapdragon XR1 (8-core, 2.52GHz), 6GB RAM, 64GB storage |
| 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) | — |

Product pages: https://www.arcompare.com/ar-glasses/rayneo-io/ · https://www.arcompare.com/ar-glasses/vuzix-m400/
Machine records: https://www.arcompare.com/data/products/rayneo-io.json · https://www.arcompare.com/data/products/vuzix-m400.json