Drones are multi-rotor or fixed wing. Multirotor drones can be broken down into the following: tricopter (3 rotors), quadcopter (4 rotors), hexacopter (6 rotors) and octocopter (8 drones) drones.
What are drones?
Drones, also known as unmanned aerial vehicles (UAV), come in many shapes and sizes and serve a growing number of purposes and industries. The popular consensus has been that drones are unmanned flying aircraft controlled via a human drone pilot. However, this is no longer entirely true, as the technology has evolved for drones. The term now also includes underwater UAVs as well as drones that are autonomous and AI-powered or even self-flying drones.
There is also an increasing amount of terminology surrounding drones. Other names used for them include: remotely piloted aircraft (RPA), remotely operated aircraft (ROA), unmanned aircraft system (UAS), and unmanned aircraft (UA) to describe aircraft without a flight crew.
From popular culture– with references such as the dystopian Black Mirror TV series and the “swarm of drone bees” episode– to the well-publicized military use of drones (mostly fixed-wing UAVs), we can see that drones profit an ever-expanding range of applications.
Indeed, professionals and hobbyists have embraced this emerging technology in applications ranging from photography and video to inspection, racing, delivery, transportation, and more. The technological advancements of drones allow them to be quicker, bigger (or smaller!), more intelligent (utilizing artificial intelligence), and to carry large payloads.
In this guide, we try to provide a framework to better understand:
- the impact of drones,
- what to consider when purchasing a drone,
- and the multitude of roles that drones are able to fulfill.
How much does a drone cost?
The price range of drones is huge! This is mainly due to the wide variety of drones available and the purposes they serve. From the more expensive, high-tech military UAVs, surveillance and camera drones (tens and hundreds of thousands of US Dollars), to micro selfie drones and toy drones on the lower end of the price spectrum (under 50 US Dollars), drone pilots have a lot to consider when deciding to buying a drone.
Most expensive drone
EHang 184 – most expensive commercial drone
Aside from military-use drones which are not for commercial sale, the most expensive reported drone is the EHang 184, a concept drone from Chinese tech company EHang. The price for this large, autonomous, passenger-carrying quadcopter drone is $300,000.
This drone is kitted out with:
- comfortable chairs,
- and a state-of-the-art control deck.
In addition, this drone (dubbed an Autonomous Aerial Vehicle AAV by EHang) provides about 20 minutes of flying time and can reach speeds of over 62 mph (100 kmh). They are also producing a 2-seater EHang 216, a hexacopter.
Augmented Aerigon Drone + Phantom Flex4K – most expensive camera drone
The most expensive camera drone is the Augmented Aerigon Drone + Phantom Flex4K. This premium drone was custom-built by BRAINFARM so that the Intuitive Aerial Aerigon drone could support the Phantom Flex4K camera drone and costs $250,000!
The cheapest drones can be found for under $20 USD. These are typically toy drones, however.
Find the cheapest drone for photography, racing, underwater or other categories with our drone comparison engine.
Types of drones
Although camera/video drones is a broad category, it generally encompasses hobby and professional drones which are designed to capture amazing video footage and photos from the air. On the top end, professional drones feature 4K cameras, can be autonomous, as well as feature a range of advanced obstacle avoidance sensors.
The flight duration and range vary, but 30 minutes is considered a great flying time, while the range can easily reach 7-10 km. These drones also feature a variety of video and camera modes to maximize the quality of footage and photos captured.
The DJI Mavic 2 Zoom is one of the best camera drones
Racing drones is possibly the biggest category of drones. An FPV (first person view) racing drone is generally a small quadcopter drone or unmanned aerial vehicle (UAV) which is specifically designed to be durable, light, and fast.
The range and flying times are more limited than most other drones, but these drones are also quicker than other drone types. In addition, drone racing as a professional sport and hobby is incredibly popular.
See our article on the best racing drones and understand what FPV racing drones are.
The ARRIS X Speed 280 V2 is one of the best racing drones
This is a small but fast-growing category of drones, which also tend to be more expensive and are generally aimed at professional users. The drones often require to be tethered to a cable, which is necessary for the live video feed. This limits the range but underwater drones can still reach depths of hundreds of meters.
Such drones typically have great lighting in order to see underwater as well as sensors for tracking and obstacle avoidance. In addition, the camera specs tend to be high to capture great quality footage in spite of challenging submarine environments. FPV goggles can also be used on some underwater drones.
These drones are usually much more expensive but also offer the best technology available in drones, whether it be for capturing cinematic footage, underwater exploration, surveillance, or building inspections. Commercial drones may also be used for cargo or deliveries.
These drones tend to be larger than other drones to deal with all weather conditions and support a heavier payload. The specs of these drones are high-end, from the quality of the cameras (some supporting infrared and thermal imaging for example) to the batteries (longer flying time) and the control system (bespoke control system with its own power supply).
As their names suggest, nano, micro or mini-drones are small in size, sometimes so tiny they could sit at the tip of a user’s finger! These drones generally target beginners, although some nano drones are designed for professional or military applications. Moreover, these drones tend to be affordable, can have cameras and are ideally suited for indoor flying.
The difference between micro, mini, and nano is in their diagonal dimensions:
- Micro quadcopters: around 150mm
- Mini quadcopters: between 150mm and 300mm
- Nano quadcopters (smallest drone size): between 100mm and 150mm
These drones tend to be smaller, easier to pilot, and available for a more affordable price. Not all toy drones are necessarily child-friendly but are suitable for beginners. In addition, these drones often feature built-in flight modes such as stunt mode (flip and roll) or selfie mode.
Some toy drones even play sounds and simulated battle effects. See for example the Propel range of Star Wars drones.
How to choose which drone to buy
Types of drones and UAVs
As mentioned earlier in the article, there are many different types of drones available. Among the 3 main categories of drones which are fixed-wing, rotary-wing, and multirotor drones, there are various subtypes available that fall into broadly categorized into:
- and hobbyists drones.
Furthermore, a drone may serve the purpose of filming/surveillance, racing, recreational use, etc. and can target beginner and experienced drone pilots.
Drones are mostly designed– or restricted– to fly for limited periods of time, although some tethered drones can fly for much longer periods. Racing drones and toy drones only offer 5 to 10 minutes of flying time while top-end commercial and camera drones can last between 30 and 45 minutes (or even longer). This obviously impacts the amount of distance or range that the drone can cover.
Other factors that can potentially affect this include weather, battery life, and the transmission/signal power between the receiver and controller, among others. For the more affordable recreational and racing drones, the range is generally short (100-200 meters) while the larger and more expensive aerial (2 km) and long-distance drones (10 km) have a substantial range.
Drones generally need to be controlled by a drone pilot via a remote controller or RC (Radio Control) transmitter. These controllers tend to take the form of those you would see operating RC toys. The controllers allow the drone pilot to operate the UAV remotely and can come in variable shapes and sizes. In addition, they may come with or without LCD screens, and even smartphone and tablets can be mounted. Different transmitters can also have varying features, some of which can be programmed and customized.
Ideally, the controller should have a minimum of four channels. Furthermore, most drone controllers operate on a 2.4 GHz frequency. Therefore, depending on the type of drone, the correct controller needs to be bound to the drone. For a longer range, a controller with lower frequencies is required. RC transmitters can also operate via Wi-Fi.
Lastly, in addition to checking a variety of other technical specifications, the drone pilot should ensure the controller is comfortable to use and ergonomic, with the buttons and control knobs easy to operate within their hands.
Generally speaking, racing drones, micro/mini drones, and toy drones measure less than 30cm in length and weigh around 500 grams or less. With the ongoing development of autonomous, delivery, and commercial drones, the size and weight of drones are increasing.
Some drones now would be considered huge. In 2018, China tested an unmanned transport drone, the Feihong-98 (FH-98), which can carry a payload of 1.5 tons and a takeoff weight of 5.25 tons!
Boeing also tested the largest prototype octocopter drone in 2018 which weighs 747 pounds (340 kg), is 15 feet long (4.5 meters) and 18 feet (5.5 meters) wide!
On the flip side, the SKEYE Nano 2 Camera Drone is considered one of the smallest camera drones and measures only 4 cm diagonally and 2.2 cm high. In addition, it weighs only 11.9 grams.
The speeds which drones can reach similarly depend on some of the factors mentioned previously: size, weight, motors, weather, etc. Some professional and lightweight racing drones are the fastest commercial drones available. RTF (Ready-To-Fly) racing drones can easily reach over 100 mph, but most will max out at around 75 mph.
The fastest recorded drone is the DRL RacerX which set the Guinness World Record for the fastest ground speed in 2017 at 163.5 miles per hour.
Larger autonomous, commercial, and camera drones tend to reach speeds of 30-50 mph. These drones also tend to manage flights much better in poor weather conditions and have a longer flying time and range.
The battery is very important for any drone. Simply put, it powers the drone or UAV. The batteries should also be carefully monitored by the drone pilot as these need to be charged and recharged when they are drained. The length of time it takes to recharge a battery can vary but easily last up to 2 hours. The rate at which the battery drains is also impacted by a number of factors; the speed and load of the drone, and for example, the ongoing use of the camera and video/photos captured.
The power of the battery in most drones is measured by the ampere-hour (mAh) which is the unit of electric charge. Furthermore, batteries differ by voltage (denoted by cell number 2s, 3s, 4s, etc.), capacity, and C-rating. Lithium-based batteries are the most commonly used in drones.
Underwater and tethered drones will often use a battery pack of sorts which offers a longer and more powerful means of powering the specialized drones.
Number of rotors
Drones feature multirotors (although some high-end drones are fixed wing) and can be broken down into the following: tricopter (3 rotors), quadcopter (4 rotors), hexacopter (6 rotors) and octocopter (8 drones) drones. Quadcopters are the most common type of drone. Some drones are exceptional cases and the UVify Draco 4×4 has an amazing 16 rotors!
Underwater drones also feature multiple motors or thrusters which may be internal and tend to be powerful to change the direction and assist in controlling the drone in difficult underwater currents.
Depending on the type and size of the drone, most drones would be considered portable. Toy, hobby, and racing drones, in particular, are compact and quite lightweight. They can also be modular in design, thus they are easy to disassemble.
For more expensive camera drones, additional carry cases are more commonplace. Furthermore, some drones are foldable, meaning that the arms of the drone can be retracted.
For high-end professional drones, every effort is made to make these drones easy to move and deploy in a short amount of time, as they may need to be deployed for emergency situations or surveillance.
Lowepro is a popular drone backpack manufacturer
Automated flight modes
Increasingly, drone manufacturers are adding new features to drones to make them easier to pilot. In addition, they are enhancing existing automated drone flight features. These are some of the more common automated flight featured found in drones:
- Waypoint: this function allows users to easily plot a course for the drone to follow.
- Orbit: allows the drone pilot to input the drone flight path as well as the rotation, camera angle, pitch, and altitude.
- Return to home: usually, this is a one-touch function that returns the drone to its pilot or to a preset GPS location. Some drones automatically “return to home” when the battery is running low.
- Altitude hold: this flying feature allows the drone to sit at a preset altitude and maintain its position.
- Follow-me: a feature which is becoming more popular and enables a semi-autonomous function whereby the drone can follow the drone pilot and record the footage all while avoiding obstacles.
Altitude hold is a popular drone flight mode feature
There are countless drone accessories available from specific manufacturers and generic drone suppliers. These include upgrades to drone components which most drones have, such as batteries, propellers, propeller guards, controllers, goggles, batteries, charging units, carry-cases, backpacks, memory cards, camera filters, etc. Online resellers such as Amazon, GearBest, AliExpress, and Banggood have hundreds of drone accessories available.
In drone racing in particular, professional and experienced drones pilots to tend to custom build their drones from drone kits to maximise performance. See more in our best FPV racing drones article.
Do-It-Yourself (DIY) vs. Ready-To-Fly (RTF) drones
Do-It-Yourself (DIY) drones
Do-It-Yourself drones are popular for an experienced drone pilot or tinkerer as they build their own drone (kit) by piecing together all of the drone components by themselves. This includes purchasing separately the key components such as the drone frame, controller, battery, motors, ESC, camera, mounts, transmitters, and receiver.
These custom builds are popular with elite-level drone racers to maximize the drone’s performance by hand-picking the best available parts from different manufacturers. However, for a DIY drone, the user needs to be careful to check the compatibility of the components.
A BNF drone usually comes assembled. However, the user may need to purchase a controller and bind it to the drone, thus they will need to align the settings to enable the drone and controller to communicate with each other.
PNF (Plug-N-Fly) or PNP (Plug-N-Play)
Plug-N-FLy or Plug-N-Play drones generally exclude a receiver, transmitter, battery, and charger, thus these will need to be purchased separately and assembled.
These drones may not come with a transmitter or receiver which will need to be purchased separately. In addition, some light assembly may be required. The manufacturer will usually make clear what additional components are needed separately, such as motors or a battery.
Ready-To-Fly (RTF) drones
RTF Ready-To-Fly drones usually are ideal for beginners to drones as the drone will require minimal assembly and setup. However, the drone pilot may need to complete some basic tasks such as charging the battery before their first drone flight. In addition, they might need to bind the controller to the drone or add the propellers. Generally, clear instructions for these tasks are provided by the manufacturer and/or there are online tutorials available.
Guide to racing drone parts
There are a variety of software and apps available for drones. Furthermore, the leading drone manufacturers offer proprietary apps that are optimized for their drones.
- DJI apps: this leading drone manufacturer offers bespoke software including DJI FlightHub (to manage the drone and its settings), DJI Flight Simulator (aimed at enterprise users) is Windows-based software which offers drone pilot training, and DJI GS Pro (an iPad app to control or plan automatic drone flights). In addition, the DJI GO app allows DJI drone users to capture and share content.
- 3D Robotics DroneKit: the software allows users to create applications for mobile, web, and desktop platforms.
- Mapping software: there are various excellent 3D mapping solutions for aerial drone mapping and photography. Some of these include Pix4D, Drone Deploy, and Precision Hawk.
- PolarPro: this useful app helps users select the best camera filter for their shutter speed. The Android/iOS app also provides live wind and weather forecasts
Pix4D is a very popular UAV mapping tool Source: Pix4D
Drones for beginners FAQs
How do you fly a drone?
There are various categories of drones and methods to control them (controller, smartphone, FPV goggles, etc.) as well as in-flight modes which can make flying a drone easier for beginners. UAVcoach provides a detailed breakdown of the many detailed steps of how a drone pilot can fly a drone. Ideally, a novice drone pilot would want an intuitive controller transmitter whereby they learn the basics of roll, pitch, yaw, and throttle to operate the drone safely.
Are drones legal?
This question depends on where the drone pilot lives, as different countries have different laws governing drone flight and operation. In addition, the laws are constantly changing as drones are still considered an emerging technology. As always, users should take the time to check their local legislation before flying a drone! Generally, restrictions include:
- no-go areas (such as airports, government buildings, historical sites),
- altitude limitations,
- maximum drone flying speeds,
- and restricting intrusiveness on flying over or near other people.
What are drones used for?
There are many types of drones such as military UAVs, commercial drones, and hobby or recreational drones. Drones can be used for all types of tasks and, as such, are increasingly being used in more industries as well. Some of the uses include:
- Real estate and construction industries
- Recreational use
- Filmmaking, photography, and content production (e.g. motion picture films)
- Drone racing
- Remote sensing and surveillance (geological, agricultural, mining, military, etc.)
- Search and rescue and disaster relief
- Underwater exploration
And many more…
Where can you buy drones?
Drones are increasingly easy to buy, being available in electronics stores, toy shops, brick and mortar specialists, and of course online resellers. These include popular e-commerce sellers such as Amazon, GearBest, AliExpress, and Bangood.