Project Details
Gravitix: Fit Tracker

React Native
Overview
Gravitix: Fit Tracker is a smart health companion that connects with Bluetooth smart scales to track weight, BMI, body fat, and more in real-time — helping users monitor and analyze body data with scientific precision.
Accurate insights, automatic syncing, and user-friendly reports keep wellness goals on track. Whether managing weight or improving overall health, Gravitix helps users track, analyze, and achieve better results every day.
As senior frontend engineer, I owned the React Native Android client — building Bluetooth scale pairing, real-time metric sync, progress charts, goal monitoring, and a clean health dashboard on a NestJS + MongoDB backend with Firebase services.

Key Features
Smart Weight Tracking
- Monitor body weight with automatic synchronization from Bluetooth smart scales
Body Composition Analysis
- Track BMI (Body Mass Index) and body fat percentage
- Additional body composition measurements from compatible smart scales
Progress Tracking
- View historical data through charts and reports
- Monitor health and fitness progress over time
Real-Time Data Sync
- Measurements sync automatically from the smart scale to the app
- No manual entry required for compatible devices
Health Reports & Insights
- Scientific insights and easy-to-understand wellness reports
- Actionable data to help monitor health goals
Goal Monitoring
- Track progress toward weight management and fitness goals
- Continuous measurements to stay motivated with measurable progress
Simple & User-Friendly Interface
- Clean dashboard for body metrics, trends, and overall health information
- Designed as a wellness companion for weight management and daily motivation
User Journey
- 1Pair a compatible Bluetooth smart scale
- 2Step on the scale to record measurements
- 3Sync body data automatically
- 4View weight and body composition metrics
- 5Track trends and progress over time
- 6Use insights to achieve fitness and wellness goals
Questions about this project
I worked as a senior frontend engineer owning the React Native Android app, including Bluetooth scale pairing, real-time metric sync, progress charts, and goal monitoring.
Project Information
- Role
- Senior Frontend Engineer
- Location
- India
- Completed on
- 2025
- Platform
- Android
Links
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