GPS Locator Device Prototype Design

I need a skilled designer to create a prototype for a patented GPS-based locator device. The device will have real-time tracking and battery status notification features, and should be designed in a wearable form factor.

Key Requirements:
- Integrate real-time tracking and battery status notification
- Design a user-friendly, durable, and ergonomic wearable device
- Collaborate closely with me throughout the design process
- Sign a Non-Disclosure Agreement (NDA)

Ideal Skills and Experience:
- Experience in wearable technology design
- Strong background in GPS technology and integration
- Proficiency in prototype development
- Ability to sign and adhere to an NDA

Please provide a portfolio showcasing similar projects.