All work
2025—26·Mobile + Hardware Live·In development

ShieldKin

Family-safety wristband, optional ring + companion app.

shieldkin.com
ShieldKin
ShieldKin app

Screens

ShieldKin — 1
ShieldKin — 2
ShieldKin — 3
ShieldKin — 1
ShieldKin — 2
ShieldKin — 3
ShieldKin — 4

3D model

Drag to turn the printable case — these are the actual print files.

Open the full 3D viewer

Renders

ShieldKin — RendersShieldKin — RendersShieldKin — Renders

Overview

A wristband, an optional ring and an app for people living at home: it keeps quiet watch and tells their family when something looks wrong — a fall, a critical reading — with step-by-step first aid, in Arabic and English. It grew from my MedGuard graduation project.

What I built

  • Rebuilding my MedGuard graduation project (Flutter + Firebase, BLE heart rate, Gemini health analysis, GPS emergency alerts) as a family-safety wearable: a wristband, an optional ring and an app.
  • The companion app tracks vitals against personal baselines, alerts carers on falls and critical readings, and guides first aid step by step, in Arabic and English.
  • New backend on Fastify, PostgreSQL and Valkey, replacing Firebase; first builds uploaded to the Google Play testing track and TestFlight.
  • Built shieldkin.com: a bilingual product site with a scroll-driven 3D wristband in three.js.
  • Designed the wristband case in code (build123d to STL/STEP), 3D-printable for fit-and-feel testing, with Blender renders and an interactive web 3D viewer.
  • Wrote the device specification: sensors, display and buttons, connectivity, battery and materials.

Stack

FlutterFastifyPostgreSQLValkeythree.jsbuild123d

Status

Live · In development