Every gram costs flight time. Weigh each candidate before you commit — published weights are patchy, so check the product page and the datasheet.
Stereo depth gives you obstacle avoidance without active illumination, which matters outdoors where projected patterns wash out. Aim for under 200 g all-in — few sellers publish a weight, so check the datasheet.


Vision alone drifts. An IMU fused with the camera stream is what makes pose estimation usable in flight.
Weigh the board with its heatsink and carrier — datasheet weights rarely include either, and both are mandatory in flight.
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