US agriculture giant John Deere made its debut appearance at the technology convention and unveiled its large combined harvester, pictured below.
Combining AI, cameras and other sensors, the harvester is used to track the quality of grain coming into the machine and adjusts its settings automatically. Farmers, however, can also monitor this process from a companion smartphone app.
South Korean start-up Pet Ding showed off its app-controlled "cat treadmill". Designed with feline fitness in mind, the application is shaped like a giant version of a hamster wheel.
Standing at almost four feet tall, the 'Little Cat' device uses in-built lights to attract a cat onto the wheel. The cat then follows the lights, causing the wheel to spin.
Like many other products showcased at CES, the gadget is intended to be 'smart' and connects to an app, which can be used by the owner to set exercise plans for their pet remotely.
Owners can also control the speed of the treadmill, monitor how many calories the cat has burned, record voice samples for encouragement and watch their cat through a live camera feed.
"In order to look after your cat's health, The Little Cat has been created to become a friend to both owner and the cat," the start-up said in a video revealing the technology.
Other tech revealed at the technology fair this week is a model of a car created by Japanese automotive manufacturer Hyundai, who says the machine can activate robotic legs to walk 3mph over rough terrain.
Part of a project that wanted to explore "beyond the range of wheels", the concept - dubbed 'Elevate' - has been in development for three years and was revealed at the show with the video shown below.
"When a tsunami or earthquake hits, current rescue vehicles can only deliver first responders to the edge of the debris field. They have to go the rest of the way by foot," said Hyundai vice-president John Suh.
"Elevate can drive to the scene and climb right over flood debris and crumbled concrete."
Suh also suggested that wheelchair users could be collected via the vehicles, which could 'walk' up to the front door of a building with step-only access.
So far at CES 2019, Samsung has revealed a 75-inch Micro LED display, focusing on a burgeoning display technology that could eventually replace screens found on TVs and smartphones. Samsung also unveiled a new range of assistive robots, such as robot vacuum cleaners and new smart appliances.
Korean tech giant LG demonstrated a flexible and foldable TV which can be collapsed into a carrying case equipped with a soundbar.
Google and Lenovo revealed a new Smart Clock at the show, seen as a likely rival to Amazon's Echo Spot smart speaker. Also, the search giant announced on the same day that Google Assistant will be updated to allow users to check into flights and act as a personal translator.
The UK's international trade secretary Liam Fox also made an appearance at CES 2019 on Wednesday and spoke about how automotive technology such as autonomous and low-emissions vehicles are playing a key role in the success of the UK car industry.