HAPIfork is a smart fork created by HAPI labs:

Obesity is directly correlated to eating faster.

How many times have we heard our elders telling us the adage, "Eat Slowly!". However, it was always difficult to pinpoint exactly how slow was "slowly?" This is the problem that HAPIfork intends to solve for its users. The main goal of HAPIfork is to help its users eat slowly. If the user is eating too fast, then the fork vibrates gently with a visual cue of a red light indicator. If the user is maintaining a constant healthy pace, then the visual indicator stays green. HAPIfork comes bundled with a smartphone app for both Android and iOS, which can help you track your meals based on the following three important parameters:

• Meal duration
• Number of fork servings
• Time interval between two fork servings

The fork and the app communicate over Bluetooth Low Energy. The HAPIfork app also logs the meal data to the backend, which can help the user visualize and gather interesting insights about their meal data.

HAPIfork is an interesting case study since it demonstrates the usage of IoT plus Bluetooth Low Energy in the user's day-to-day activities.