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Case StudyHealth Care

VitaPulse

VitaPulse is a wearable-focused health tech platform aimed at detecting cardiac arrest / critical events in real time using smartwatch sensor streams (initially Samsung Wear OS devices). It’s designed as an end-to-end system: a watch app + companion mobile app + backend services that collect high-frequency time-series data (e.g., heart-related signals delivered in short packets), run real-time prediction algorithms, and trigger an alerting workflow when risk is detected.

UBC & VitaPulse

Client

Vancouver, BC

Project Overview

Client

UBC & VitaPulse

Industry

Health Care

Platform

Web & Android

Services

End-to-end Application Development, API & Realtime Backend Development

View Live Project

Industry

Health Care

Location

Vancouver, BC

Services

End-to-end Application Development, API & Realtime Backend Development

Platform

Web & Android

The Challenge

The client needed a reliable way to turn high-frequency smartwatch sensor streams into real-time, actionable cardiac event detection, but faced challenges with device integration, low-latency processing, and scalable data storage across users/projects.

Our Solution

  • Built an end-to-end platform: Wear OS + Android app + real-time backend for streaming and predictions

  • Integrated Samsung health/wearable data pipelines and implemented low-latency WebSocket ingestion

  • Implemented a scalable storage strategy (local SQLite + cloud/edge Turso) and multi-project access controls

  • Completed full end-to-end platform in 6 months

Results

Impact & Outcomes

Reduced time-to-detection by enabling real-time alerting workflows instead of post-hoc review

Improved data reliability and continuity with offline/local capture and resilient streaming

Created a scalable foundation for multi-subject studies and future model retraining

Technologies Used

Kotlin Multiplatform (KMP)Android & WearOSNestJSWebSocketsReactPostgreSQLMicroservice ArchitectureMicro Frontend ArchitectureMulti-Tenant Architecture

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