The Air 3S can hit up to 45 mph in sport mode. That’s fast and there’s no obstacle detection with this setting, so you need to know what you’re doing. In normal mode, which does support obstacle tracking, speeds drop down to 23 mph. You get about 12.5 miles of range in the US via DJI’s latest O4 transmission system, or half that in Europe. One small change is that the Air 3S now transmits 10-bit 1080p 60p video rather than 8-bit as before, improving remote video capture quality.