Las Vegas ( CNN ) -- Judging by a preview event at this year 's Consumer Electronics Show , one big gadget trend this year will be sensors that track almost everything in your daily life . There are sensors to track your home , your security systems , your pets , your plants , your weight and , in the case of a new `` smart fork , '' even how fast you eat . CES , the world 's biggest electronics trade show , officially opens its doors Tuesday and runs through Friday . But at Sunday 's preview event here , select companies offered the first real peek at what kinds of products we 're likely to see the most over the week . Here are five of the more fun gadgets we spotted . The smart fork that slows you down . The HAPIfork from HAPILABS is smarter than your typical eating utensil . In addition to the standard stabbing of meat and ferrying of food from the plate to your mouth , this fork tracks how many bites you take , how fast you take them and the length of your meal . If you are eating too fast , the fork will let you know with a vibration and a blinking light , eventually training you to take your time . Eating more slowly can help people lose weight ( there 's more time to feel full ) , and also help them digest food better . French engineer Jacques Lepine invented the connected eating implement after his family chided him for eating too quickly . He spent three years searching for the right sensor , eventually settling on one that completes a circuit every time your mouth closes over the end of the fork . Naturally , the HAPIfork comes with a mobile app and webpage for tracking your noshing habits . A HAPIspoon is also in development . The fork will cost $ 99 when it becomes available in April , and the founders are planning a Kickstarter campaign for February . Trends to look for at CES . A hub for your connected home . There are seemingly no limits to the things in your home , such as temperature and lights , you can track and control remotely with sensors . But there are not many good ways to coordinate all of that data , short of having an app for each and every device . The Iris system from Lowe 's acts as a hub for a connected home . With the one mobile app you can control and check all your household sensors , or you can program Iris to send you text-message alerts when , say , your back door is open . In addition to thermostat and security sensors , Iris will help you monitor carbon monoxide levels , water heaters , pet doors and the moisture levels of your house plants . Lowe 's promises more sensors to come from such third parties as Verizon , Whirlpool and PetSafe . If you doubt the need for a connected home , check out the Iris Care service . It lets you monitor an elderly family member 's home and sends you a text message if anything unusual is detected . There 's also an emergency alert button your relative can wear around his or her neck . Toyota reveals self-driving car . Track your lost luggage anywhere . Trakdot is like Find My iPhone for your luggage . The small black and orange box is preprogrammed with your phone numbers and dropped into a piece of checked luggage . If you arrive at an airport but your duffel does n't , you can check its location online with the Trakdot app , or get its location sent to you via text message or e-mail . The device transmits the location using a SIM card , so a few special features had to be worked in to make it FAA compliant . The Trakdot automatically goes into sleep mode when it hits 100 knots and wakes up when the plane is at the destination gate . The Trakdot costs $ 50 , plus an annual $ 13 service fee and a one-time $ 9 setup fee . If you 're a frequent flier who has been wronged by incompetent airlines , you may find it a good investment to let you know if your bag is in Frankfurt when it 's supposed to be in Rome . iPhone case is all touch . Sure , the front of your iPhone is touch sensitive , but all that other surface area is just boring old metal , right ? Not anymore . The Sensus case from Canopy adds touch features to the sides and back of your iPhone , turning it into one big touchtastic device . When used with compatible apps , the case adds some interesting navigation and scrolling options . It shines most with games , allowing more interactive play without your big fingers blocking the touchscreen . The device will need more dedicated apps to be truly useful , but Canopy has released a few of its own apps to show off its features and potential . There 's a glut of iPhone cases out there , so it 's nice to see a new entry that adds to the smartphone experience instead of just dressing up the phone . The case starts at $ 59 , and the company says it is working on iPad versions . The history of CES celebrity gadgets . Smart glasses , but not Google 's . The Vuzix M100 smart glasses bring the power and features of a smartphone directly to your eyeballs . The company has been working on a prototype of these specs for a year and is now showing off a working model at CES . Vuzix says it 's close to what the final version will be . The glasses run Android 4.0 and can be used to make calls , watch videos and navigate a computer interface . The device has all the fixings , including GPS , Bluetooth , Wi-Fi and 720p video recording . Vuzix hopes to have the glasses available by this summer for Android and iOS .
Tech companies and gadget startups show new products at the Consumer Electronics Show . There was a glut of home and health sensors , but a few products stood out . A `` smart fork '' tracks how fast you eat to help you lose weight . A GPS-based device will track your lost luggage .