Sci-fi gadgets that really exist

World's smallest camera drone

The world's smallest camera drone, named Skeye Nano Camera Drone, is just 5-inches (4 cm) wide and can fly up to heights of 165 feet (50 m). The tiny drone can flip and tumble mid-air, while capturing images using its on-board camera. It weighs a mere 0.5 oz (14 g) — roughly the same as an empty Coke can. A fully charged battery gives four minutes of flight time. 

ArcaBoard

Lifted by 36 high-power electric ducted fans and fitted with onboard sensors, Arca Space Corporation's ArcaBoard can rise up to one foot (30 cm) above the ground and can power along at speeds up to 12.5 mph (20 kph). A fully charged ArcaBoard powers a flight time of about six minutes. 

Hands-Free Suitcase

Imagine the comfort of traveling with a smart suitcase that follows you while avoiding obstacles. Israeli company NUA Robotics has designed the same. The hands-free suitcase communicates with the user's smartphone through Bluetooth to track the user's location. It also features a camera sensor, an anti-theft tool, and a backup battery reserve.

Nail Art Robot

The Nailbot machine gives the freedom to print instant pictures, designs and emojis directly onto finger nails — all in the comfort of home. Made by Preemadonna, the Bluetooth-enabled machine connects to the user's smartphone using the Preemadonna app. Users can select the desired design from their phones, and get it printed on their nails in less than five seconds.

Camera Free Security System

A groundbreaking new home security system that detects and tracks movement through walls and furniture in real time using radio waves — informing the exact location of an intruder on a smartphone app. Called Xandem Home, the system takes just 15 minutes to install and is a product of years of research funded by major US intelligence services. 

Lumir C lamp

A lamp that uses the flame of a candle to power the LED bulb and light up an entire room. Lumir C lamp's inventor Jay Pack from Seoul, South Korea, said: "The heat from the flame rises into the device, where the temperature difference between hot and cool air generates thermoelectricity, a principle known as the Seebeck effect. Then the energy turns on the LED at the top. Depending on the power of the flame, it usually it takes about one to two minutes to shine brightly."

Smartphone coffee machine

Coffee lovers can now create the ultimate personalized coffee from the comfort of their own sofa, thanks to the world's first fully integrated smart connected bean-to-cup coffee machine. The stunning new state-of-the-art PrimaDonna Elite from De'Longhi allows you to create, personalize and deliver your perfect coffee straight from a Bluetooth-enabled app on your mobile device, wherever you are in the home. It can create hundreds of different varieties of coffee-based drinks all from one machine. 

Trakkies devices

A revolutionary coin-sized device now ensures you never forget to pick up essential items — because it warns you when you're about to leave the house without them. The groundbreaking tools, called 'Trakkies', are a collection of tiny circular gadgets which can be attached to keys, a bag, or a wallet or purse. They then alert the user if they have forgotten to pick up a certain item by flashing their LEDs and making noises. Users can also connect their smartphone to the devices by downloading the Trakkies app and will be given precise directions to the item they have left behind.