Jayu is a digital rewards platform that builds relationships between businesses and customers using Bluetooth Low Energy (BLE) technology without direct interaction. It uses a CC2541 chip and customized beacons to create opportunities for businesses by bringing back loyal fans. Escali Smart Connect uses BLE-enabled kitchen scales to send wireless nutritional measurements to a mobile app, allowing users to track their diet, weight, and body composition. Dreamverse significantly uses BLE to send digital business cards between colleagues in proximity at events to build a professional network. i-Sense is a motion sensor device that tracks activity data via Bluetooth to a smartphone or computer.