# Halliday G2 vs Vuzix M400 Smart Glasses

Canonical comparison page: https://www.arcompare.com/compare/halliday-g2-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 Halliday G2 is the better buy for most people at $900.99 less, unless you need a built-in camera.**

- Buy the Halliday G2 if you want to spend $900.99 less ($599 vs $1499.99) and you need longer battery life (12 hours vs 2).
- Buy the Vuzix M400 Smart Glasses if you want a built-in camera and you're an iPhone user.

## Specifications

| Spec | Halliday G2 | Vuzix M400 Smart Glasses |
| --- | --- | --- |
| Price | $599 | $1,500 |
| Optics type | waveguide | — |
| Dimming control | ✓ Yes | ✓ Yes |
| Prescription support | ✓ Yes | ✓ Yes |
| Diopter range | Prescription lenses SPH -9.00 to +2.00, CYL -3.00 to +3.00 in 0.25 D increments; $199 lens credit covers 1.6/1.67-index lenses in full | Works alongside prescription glasses / safety frames via mounting options |
| Weight (g) | — | 190 |
| Foldable | ✕ No | ✕ No |
| Battery life (hours) | 12 | 2 |
| Connectivity | — | USB-C |
| Compatible devices | — | Standalone, iOS, Android |
| Operating system | Halliday app: 45+ language live translation, Meeting Flow (captions, transcripts, action items), Cheatsheet teleprompter | 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 | Halliday AI ("Hey Halliday" wake word) | — |

Product pages: https://www.arcompare.com/ar-glasses/halliday-g2/ · https://www.arcompare.com/ar-glasses/vuzix-m400/
Machine records: https://www.arcompare.com/data/products/halliday-g2.json · https://www.arcompare.com/data/products/vuzix-m400.json