What鈥檚 4K video? Video that鈥檚 four times as wide, with four times as many pixels, as standard HD. Cameras with 4K capability let you pull still images with enough resolution to run in a glossy magazine. And with more image to work with, you can zero in on exactly what you want in post-production. Most of us still watch nearly everything on HD TVs, computers, and phones, but the 4K market is growing fast.聽
Sony a7s ($2,499)

Best for: Long Trips
The is more of a 4K-ready camera鈥攜ou need to add a third-party recorder to take advantage of its ultra-high-res video capability鈥攂ut it compensates with a 12-megapixel, full-frame sensor that performs better in low light than the human eye. There are fewer pixels on the sensor, but each one is larger, absorbing more available illumination and allowing for up to 400,000 ISO, making this standard-size camera powerful enough to shoot in total darkness.
GoPro Hero4 Black Edition ($499)

Best for: Athletes
It鈥檚 small, but with 4K video the punches well above its weight. To handle that kind of power, the 1.2-ounce camera comes with a major software upgrade鈥攜ou can now control ISO, white balance, and even color profile. More impressive is its ability to capture super-slow-motion footage at 1080p, turning every huck into an epic event. Bonus: GoPro now includes a setting to narrow the field of view, minimizing the distortion typical of action cams.
Blackmagic Production Camera 4K ($2,995)

Best for: Aspiring Auteurs
It鈥檚 not often that you see the words production camera and affordable in the same sentence, particularly when the specs include 4K resolution and RAW support, which gives you far more editing options鈥攁ll packed into a tool the size of a deli sandwich. Designed for Canon lenses, the is intended to be tricked-out with monitors, mikes, and shoulder rigs. It鈥檚 the most attainable camera we鈥檝e found for capturing professional-quality 4K video.
Leica D-Lux (Typ 109) ($1,195)

Best for: Street Photographers
There are plenty of compact travel cameras that claim DSLR performance, but Leica鈥檚 is the only one we鈥檝e tested that actually delivers on the hype. Credit an impressive 4/3 sensor packed into a hefty body with an integrated electronic viewfinder and pro-style controls that let you switch shooting modes quickly. And you can record in-camera 4K video at 30 frames per second, which looks sharp through the built-in 24鈥75mm lens.
3DR Iris+ ($750)

Best for: Hands-Free Filming
Backed by Richard Branson, 3DR is a worthy competitor to DJI. The is its flagship quad, and it鈥檚 one smart operator, able to fly and (once you add a camera) film on its own. Just map out a flight plan on your Android phone using the Iris鈥檚 app. When synced with your handset, the drone can follow you down the trail and keep you in the center of the frame, making it ideal for solo mountain bikers or skiers. The Iris+ isn鈥檛 as stable as some of its competitors, but the included gimbal, designed for a GoPro, handles nearly all the vibration.
DJI Inspire 1 ($2,899)

Best for: Two-Man Crews
The first drone to incorporate a 4K camera is also the most balanced and easy-to-use model we鈥檝e ever tested. Among its many smart features, the comes with two remotes, so your partner can control the shot while you focus on flying. DJI also made the camera detachable, so you can swap in a third-party unit. Not that you need to: the built-in one has a 94-degree field of view and staggering resolution that鈥檚 perfect for aerial photography. The on-board visual positioning system monitors the drone鈥檚 distance from the ground, acting as a stabilizing tool鈥攊deal for flying indoors. Our one complaint? Only 18 minutes of flight time means you鈥檒l want to pack a spare set of batteries.