For outdoor use, the ZED 2i is the more rugged of the two: it has a higher ingress protection rating, while the Gemini 336 is much lighter. Their operating temperature ranges are identical on paper, but with a caveat for the Gemini 336.
Comparison
| Attribute | Stereolabs ZED 2i | Orbbec Gemini 336 |
|---|---|---|
| IP rating | IP66 | IP5X stereolabs... +1stereolabs.com ↗“mechanical.ip_rating=IP66”orbbec.com ↗“mechanical.ip_rating=IP5X” |
| Max operating temp | 45 °C | 40 °C at 30/60 fps (45 °C only at 15 fps) stereolabs... +1stereolabs.com ↗“thermal.max_operating_temp_c=45 °C”orbbec.com ↗“maximum40C at30/60fps” |
| Min operating temp | −10 °C | −10 °C stereolabs... +1stereolabs.com ↗“thermal.min_operating_temp_c=-10 °C”orbbec.com ↗“thermal.min_operating_temp_c=-10 °C” |
| Weight | 229 g | 99 g stereolabs... +1stereolabs.com ↗“mechanical.weight_g=229 g”orbbec.com ↗“mechanical.weight_g=99 g” |
What this means for an outdoor robot
- Weather sealing: The ZED 2i's IP66 rating means it's protected against dust and powerful water jets, whereas the Gemini 336's IP5X protects against dust only — no water protection is stated. For a robot exposed to rain or hose-down washing, the ZED 2i is the safer choice. stereolabs... +1stereolabs.com ↗“mechanical.ip_rating=IP66”orbbec.com ↗“mechanical.ip_rating=IP5X”
- Heat: Both list −10 °C to 45 °C, but the Gemini 336's range depends on frame rate — it holds that full range only at 15 fps, dropping to a 40 °C maximum at 30/60 fps, and the spec refers to ambient conditions, not the camera case. The ZED 2i's 45 °C maximum comes with no such condition listed. orbbec.com +1orbbec.com ↗“Depends on frame rate”stereolabs.com ↗“thermal.max_operating_temp_c=45 °C”
- Weight: The Gemini 336 is less than half the weight (99 g vs 229 g), which matters if your payload budget is tight or the camera sits on a gimbal or arm. orbbec.com +1orbbec.com ↗“mechanical.weight_g=99 g”stereolabs.com ↗“mechanical.weight_g=229 g”
In short: for exposure to rain, dust, and heat, the ZED 2i is the tougher unit; the Gemini 336 wins on weight.