A 4K drone typically refers to a drone that is capable of recording or streaming video footage in 4K resolution. 4K resolution refers to a display or video resolution with approximately 4,000 pixels horizontally.

4K drones are popular among photography and videography enthusiasts because they offer high-quality footage with stunning details. The increased resolution allows for sharper and more lifelike images compared to lower-resolution drones.

When shopping for a 4K drone, there are a few key features and considerations to keep in mind:

1. Camera Quality: Look for a drone with a high-quality camera capable of capturing 4K video. Consider factors like sensor size, image stabilization, and bit rate to ensure the best video quality.

2. Flight Stability and Controls: Stability is crucial 4K drone for capturing smooth footage. Look for a drone with advanced flight control systems, such as GPS and obstacle avoidance, to ensure stable flights and easy maneuverability.

3. Battery Life: Longer battery life allows for more extended flight times, giving you more time to capture footage. Consider drones with interchangeable batteries or additional battery packs for extended flights.

4. Range and Connectivity: Check the range of the drone's remote control and its connectivity options. Some drones use Wi-Fi or have dedicated remote control systems for longer distances.

5. Flight Modes and Intelligent Features: Many modern drones offer intelligent flight modes, such as follow-me, orbit, and waypoint navigation. These features can help you capture unique shots and simplify the piloting process.

6. Portability and Size: Consider the drone's size and portability, especially if you plan to travel with it. Compact and foldable drones are easier to transport and store.

Popular 4K drones on the market include models like DJI Phantom 4 Pro, DJI Mavic Air 2, DJI Mini 2, Autel Evo II, and Skydio 2. However, it's always best to research and compare different models based on your specific needs and budget before making a purchase.