DJI are the biggest brand in consumer drones.The new Mini 4K is not very different from the Mini 2 SE in terms of design; the airframe is the same and it takes the same batteries. If it wasn't for the name on the side it'd you'd probably not be able to tell the difference. Switch them on, however, and the Mini 4K has a good few more options in the camera resolution menu.
In essence, then, DJI is improving it's offering for the beginner.
Considering that the DJI Mini 4K is the best budget drone for beginners, it made an understated entrance. There were no bells and whistles, just a quiet appearance on Amazon, and I can see why: it's essentially the same drone as DJI's previous entry-level model, the Mini 2 SE, only with higher-resolution 4K video, which also enables a 2x digital zoom.
Video quality is further bolstered by a higher 100Mbps bitrate, but otherwise this is almost an identical drone to the Mini 2 SE. That's no bad thing – DJI has addressed the former's single weakness – 'just' 2.7K video – and priced its successor aggressively.
Since the Mini 4K was launched, DJI announced an all-new drone, the DJI Neo, which is even cheaper than the Mini 4K and shoots 4K video. However, the half-size selfie drone is an altogether different proposition. If you want the traditional drone-flying experience, complete with a 3-axis mechanical gimbal and sturdier flight performance including level 5 wind resistance, the Mini series, in which the Mini 4K is the new entry-level model, remains your best bet. If you want even simpler operation, and smart AI-subject tracking features, the Neo is a fun alternative.
The Mini 4K offers decent battery life of up to 31 minutes on a single charge, and if you opt for the pricier Fly More Combo bundle you'll get an extra couple of batteries and charging hub thrown in for good measure.
DJI offers perhaps the most rounded experience for beginner pilots, with clear tutorials on the DJI Fly app, through which you control the Mini 4K's flights, complete with a scaled-back selection of DJI Quickshots flight moves, including dynamic movements such as Helix, Circle and Boomerang that will quickly elevate the quality of your aerial videos.
If money is no object, the DJI Mini 4 Pro remains the most accomplished sub-250g choice, with its clever subject tracking and industry-leading flight safety features like omnidirectional object sensing. But if you simply want to see what all the fuss is about with drones without risking a huge amount of money, you can't go wrong with the DJI Mini 4K. It's excellent value, and the most capable sub-$300 / £300 drone on the market, even if the Neo has more flight options.
DJI lists the Mini 4K's flight time as up to 31 minutes, but that's measured in a controlled setting. What you actually get in real-world use is almost certainly less, and will be influenced by factors including wind speed and the flight maneuvers you're performing, and overall it's better to keep your expectations on the lower side. That said, with typical use in moderate wind I was averaging over 20 minutes, and I'm not sure that you'll find a better battery performance in another drone at this level.
I was also armed with the two additional batteries included in the Fly More Combo, effectively tripling flight times on any given outing, and the charging hub can be topped up on-the-go via USB-C.
The maximum transmission range is up to 10km, depending on what region you're flying in and what level of interference there is where you're flying. Users in Europe, for example, are restricted to 6km. In any case, beginners are unlikely to get anywhere near those kinds of distances on a single flight, and you'll need to make sure that Return to Home is set up for your take-off point in the likely event you get disorientated as to the drone's position.
You can configure the Mini 4K's max possible altitude and flight distances, and the height at which it rises to when Return to Home is initiated. There's a 500m altitude cap, although if you're playing it safe as a beginner you should stick to 150m or lower, which will likely be the legal limit in your region anyway if you don't have a certificate of competency. Again, max distance can be set up to 5000m or the limit removed entirely, but when you're starting out it's probably a good idea to stick to much closer. The Mini 4K is fed all of this data through GPS + GLONASS + Galileo satellite systems.
On the controller you'll find three flight modes: Cine, Normal and Sport, each with a different max speed and responsiveness. Cine mode is the slowest of the three, designed to get you the smoothest possible aerial videos, while of course Sport is the niftiest to unleash piloting fun.
Flight speeds in Sport mode top out at 35.79mph and are no match for FPV drones in manual mode such as the DJI Avata 2, but are plenty quick enough while you find your feet and build your piloting skills. Cine mode is significantly slower than that.
And then there's DJI QuickShots flight moves, which include Dronie, Helix, Rocket, Circle, and Boomerang. Circle performs a lateral 360-degree move around your chosen subject – you simply select suggested subjects or draw a box around the chosen subject, and off the drone goes into action. Boomerang does a similar move while gradually gaining height.
These simple flight moves can improve the quality of your aerial videos as you center on points of interest around you. Other DJI drones have additional QuickShots moves in Spotlight and Follow. The Mini 4K does not offer Follow, and it lacks Follow Me subject tracking, which you get with pricier models and even the new Neo selfie drone.
The Mini 4K's 1/2.3-inch sensor is larger than the sensor found in the Neo, and smaller than the one in the Mini 3 and Mini 4 Pro drones. As such, its 4K video image quality sits somewhere in the middle in terms of color depth, dynamic range and low-light clarity.
That sensor size is roughly equivalent to what you'd find in a standard smartphone, only you don't have the computational photography modes and HDR settings afforded to today's handsets; if the sun is directly in your shot, expect blown-out highlights. However, I still found detail to be very sharp at first light before the sun lapped over the landscape.
Video resolution tops out at 4K 30fps, while cinematic half-speed 60fps videos can be shot in 2.7K and Full HD resolutions. Photos are up to 12MP (in 4:3 aspect, with a 16:9 cropped format also available) and can be shot in either JPEG or raw, with the latter offer more editing flexibility. Files are recorded onto microSD card, with compatibility for cards up to 256GB.
DJI has upped the maximum video bitrate to 100Mbps (it was 40Mbps in the Mini 2 SE). So not only does the Mini 4K offer higher-resolution video than the Mini 2 SE, but its 2.7K video is also less compressed.
There's a standard color profile for photo and video – what you see is what you get. However, you can easily edit the colors in raw DNG format photos in your choice of photo editor. If you're a keen editor, you'll probably want to shoot photos in both raw and JPEG, just in case the JPEG photos aren't to your taste. However, there's no flat color profile for video, which is pretty normal for a beginner drone, so there's not much scope for color-grading videos.
What's unusual for a drone at this price point is that you can switch from the Mini 4K's Auto setting to a Pro mode for manual control over exposure settings for photo and video, including the 1/30 to 1/8000 shutter speed and ISO 100 to 3200 ranges. That's an excellent feature for discerning image makers, though I suspect most people will keep the Mini 4K in Auto and be pleased with the results.
The three-axis gimbal offer a -110° to 35° tilt range, -35° to 35° of roll and -20° to 20° pan, and works in tandem with image stabilization to give you smooth video footage. Unless you're fighting high winds or making jerky movements on the controller – which requires significant finesse – then you can expect super-smooth video footage, especially in Cine mode.
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