Halliday AI Glasses vs Vuzix M400 Smart Glasses
Side-by-side comparison of specs, features, and pricing
Specs updated
Which should you buy?
Bottom line: the Halliday AI Glasses is the better buy for most people at $1000.99 less, unless you need a built-in camera.
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Buy the Halliday AI Glasses if…
- You want to spend $1000.99 less ($499 vs $1499.99)
- You want the lighter 35g fit (vs 190g)
- You need longer battery life (12 hours vs 2)
Buy the Vuzix M400 Smart Glasses if…
- You want a built-in camera
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 |  Halliday AI Glasses $499 |  Vuzix M400 Smart Glasses $1,500 |
|---|---|---|
| Price | ||
| Price | $499 | $1,500 |
| Optics | ||
| Optics type | direct-view micro display | — |
| Dimming control | ✓ Yes | ✓ Yes |
| Prescription support | ✓ Yes | ✓ Yes |
| Diopter range | DigiWindow eyesight dial -8.00 to +2.00; frame compatible with any lenses (maker page) | Works alongside prescription glasses / safety frames via mounting options |
| Physical | ||
| Weight (g) | 35 | 190 |
| Frame style | wayfarer | — |
| Color options | Black, Gradient, Tortoiseshell | — |
| Foldable | ✓ Yes | ✕ No |
| Battery & power | ||
| Battery life (hours) | 12 | 2 |
| Charging method | USB-C (temple tip) | — |
| Charging time (min) | 1 | — |
| Connectivity | ||
| Connectivity | Bluetooth 5.3 | USB-C |
| Tethered | ✕ No | — |
| Compatible devices | iOS, Android | Standalone, iOS, Android |
| Computing | ||
| Processing type | phone | — |
| Operating system | Halliday app with Proactive AI agent, 40-language translation, teleprompter/cheat-sheet, navigation, notifications | Android 9.0 (upgraded builds available; APK sideloading) |
| Chipset | phone-tethered; cloud proactive AI (credit-based: ~$10 per 1,000 credits / ~5 h Proactive AI) | Qualcomm Snapdragon XR1 (8-core, 2.52GHz), 6GB RAM, 64GB storage |
| Sensors & input | ||
| Camera | ✕ No | 12.8MP |
| Microphones | 1 | — |
| Speakers | open-ear | open-ear |
| Tracking | — | 3DoF |
| Gesture control | ✓ Yes | — |
| Voice control | ✓ Yes | — |
| AI assistant | Halliday AI (proactive + reactive) | — |
Buy the Halliday AI Glasses
Buy the Vuzix M400 Smart Glasses
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Halliday AI Glasses vs Vuzix M400 Smart Glasses: FAQs
Which is newer: the Halliday AI Glasses or the Vuzix M400 Smart Glasses?
The Halliday AI Glasses is newer, released April 2025, versus September 2019 for the Vuzix M400 Smart Glasses.
Which is cheaper: the Halliday AI Glasses or the Vuzix M400 Smart Glasses?
The Halliday AI Glasses costs $499 and the Vuzix M400 Smart Glasses costs $1499.99, making the Halliday AI Glasses $1000.99 cheaper.
Which is lighter: the Halliday AI Glasses or the Vuzix M400 Smart Glasses?
The Halliday AI Glasses is lighter at 35g. The Halliday AI Glasses weighs 35g and the Vuzix M400 Smart Glasses weighs 190g.
What is the main difference between the Halliday AI Glasses and the Vuzix M400 Smart Glasses?
Based on recorded specs, the Halliday AI Glasses leads on price ($1000.99 cheaper) while the Vuzix M400 Smart Glasses leads on camera (Has built-in camera).