4K Resolution: The primary feature is its ability to record video in 4K Ultra HD (3840 x 2160 pixels). This high resolution provides sharp, detailed, and professional-quality footage, which is essential for capturing fast-paced action without losing clarity.

High Frame Rates: To complement the 4K resolution, these cameras often offer high frame rates (FPS), such as 60fps or even 120fps and 240fps. This is crucial for smooth motion capture and enables the creation of stunning slow-motion effects.

Durability and Waterproofing: Action cameras are built to withstand harsh environments. They are typically shockproof, dustproof, and designed to endure drops and impacts. Many models are waterproof right out of the box, or come with a separate waterproof case, allowing for use in water sports like surfing, diving, and swimming.

Image Stabilization: Since they are used in motion, a critical feature is advanced image stabilization technology. Most modern 4K sports cameras use electronic image stabilization (EIS) or have advanced proprietary systems (like GoPro's HyperSmooth or Insta360's FlowState) that mimic the smooth, steady footage of a gimbal without the extra hardware.

Compact and Lightweight Design: Their small size and light weight make them easy to mount on helmets, bikes, surfboards, or wear on your body, ensuring you can get a first-person perspective without being weighed down.

Wide-Angle Lens: A wide field of view (FOV) is standard, typically 150° or more. This allows the camera to capture more of the surroundings, providing an immersive and engaging perspective for the viewer.

Connectivity: Most cameras include built-in Wi-Fi and Bluetooth, allowing for remote control via a smartphone app and easy transfer of footage. Some also feature GPS to track and overlay data like speed and location on your videos.