Comparison
Halliday G2 vs RayNeo iO
| Halliday G2 | RayNeo iO | |
|---|---|---|
| Glaiss score | 7.6 | 8.7 |
| Launch price | 599 $ | 479 $ |
| Weight | 49 g | 33 g |
| Type | AI with display | AI with display |
| Display | Binocular microLED waveguide, 600 × 300 per eye, up to 1600 nits | Monochrome green waveguide, 1,300 nits, 97% transparency |
| Field of view | 25° | 23.5° |
| Camera | No camera | No camera |
| Battery | 12 h | 48 h |
| AI | Halliday’s own assistant | RayNeo AI + Gemini 3.1 Flash Lite (optional $9.99/month tier for ChatGPT, Claude, DeepSeek) |
| Translation | Over 45 languages in the translation feature | 55 languages, 109 accents (Timekettle BabelOS 3.0) |
| English | Assistant speaks English · confirmed by the manufacturer | Assistant speaks English · confirmed by the manufacturer |
| Seller warranty | 1 year | 1 year |
Which should you buy?
Both belong to the same family, so here the scores are genuinely comparable.
RayNeo iO wins the overall score by 1.1 points, but that score averages six criteria and you will only use some of them.
Battery is not close: RayNeo iO lasts 48 hours against 12 h for the Halliday G2. At that gap, one lasts the day and the other does not.
Both have manufacturer-confirmed language support.
RayNeo iO is 16 grams lighter, which you feel on your nose after eight hours.
On price, RayNeo iO is $120 cheaper.