Specs

• 5K/30 FPS video recording
• 4K/60 FPS video recording
• 2.7K/120 FPS video recording
• 1080p/240 FPS video recording
• 1080p live streaming
• 1080p Webcam mode
• 20Mp photos
• HyperSmooth 3.0
• TimeWarp 3.0
• 1.4" front color display with live preview
• 2.27" rear touch display with touch zoom
• Waterproof up to 10 metres
• SuperPhoto + HDR
• RAW
• Voice control with 14 commands in 11 languages
• 30% more battery life than HERO8 Black with improved cold-weather performance
• Removable, rechargeable battery
• Compatible with Max Lens Mod, Light Mod, Display Mod and Media Mod for HERO9 Black
• $349 with one year subscription directly from GoPro
  • https://gopro.com/en/us/shop/cameras/hero9-black/CHDHX-901-master.html
• $449
  • https://www.bhphotovideo.com/c/product/1585844-REG/gopro_chdhx_901_hero9_black.html
  • https://www.adorama.com/gph9b.html