Halliday G2 vs RayNeo iO
Side-by-side comparison of specs, features, and pricing
Specs updated
Why Halliday G2 is better
- Brightness: 300 nits brighter (1600 vs 1300)
- Prescription Support: Supports prescription lenses (Yes vs No)
Why RayNeo iO is better
- Price: $120 cheaper (479 vs 599)
Specs Comparison
| Specification |  Halliday G2 $599 |  RayNeo iO $479 |
|---|---|---|
| Price | ||
| Price | $599 | $479 |
| Optics | ||
| Optics type | waveguide | waveguide |
| Dimming control | ✓ Yes | ✕ No |
| Transparency level | — | 97% transparency |
| Prescription support | ✓ Yes | ✕ No |
| Diopter range | Prescription lenses SPH -8.00 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 | — |
| Physical | ||
| Weight (g) | — | 33 |
| Foldable | ✕ No | ✕ No |
| IP rating | — | IP54 |
| Battery & power | ||
| Battery life (hours) | 12 | — |
| Connectivity | ||
| Connectivity | — | Bluetooth 5.4 (Apple MFi licensed) |
| Tethered | ✕ No | ✕ No |
| Computing | ||
| Operating system | Halliday app: 45+ language live translation, Meeting Flow (captions, transcripts, action items), Cheatsheet teleprompter | — |
| Sensors & input | ||
| Camera | ✕ No | ✕ No |
| Microphones | 4 | 4 |
| Speakers | ✕ No | ✕ No |
| Gesture control | ✕ No | ✕ No |
| Voice control | ✓ Yes | ✓ Yes |
| AI assistant | Halliday AI ("Hey Halliday" wake word) | Choice of Gemini / ChatGPT / Claude; DeepSeek multi-model tier |
Buy the Halliday G2
Buy the RayNeo iO
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