COMPANION APP

As part of a broader health platform ecosystem, we needed to design a companion app that connects a Bluetooth-enabled health band or smartwatch to a user’s smartphone, ensuring health data flows seamlessly into the main Health & Longevity App.

Project Overview

Product: Bluetooth Companion App

Domain: Digital Health

Role: UX Lead & Designer

Users: Longevity App Users

Platforms: iOS mobile app, Wearable device

Focus: Delivering a frictionless bridge between wearable and platform

Tools: FIGMA, Confluence, JIRA, Maze

My Role:

UX research and journey mapping

Interaction design and system state modelling
Wireframing and high-fidelity UX design
Collaboration with engineers on BLE constraints and background syncing logic
Iterative usability testing and refinement

The challenge was to make the connection process intuitive and reliable, given that Bluetooth pairing can often be a major source of user frustration. My role focused on understanding the mental model of users around device connectivity, and translating that into a guided, reassuring flow that built confidence and minimized setup friction.

Through iterative design and testing, the app was shaped to:

Simplify the device pairing journey with clear, step-by-step guidance and visual feedback.
Provide transparent connection states (e.g., “searching,” “connected,” “syncing”) to reduce uncertainty.
Ensure background data synchronization so users never needed to manually manage transfers.
Balance technical complexity (Bluetooth, background permissions, data encryption) with a human-centered experience that felt effortless.

The result was a lightweight, dependable companion app that acted as the invisible bridge between wearable and platform — empowering users to focus on their health insights, not on the connection behind them.

The Problem

Bluetooth pairing is one of the most common points of friction in connected health products.

Failed pairing attempts
Unclear connection states
Confusing permission requests
Manual data syncing frustrations

The Design Goals

Users experience:

Simplify the pairing journey with guided, step-by-step flows

Provide transparent connection states to reduce uncertainty

Create visual reassurance during device discovery and syncing

Firmware versions
Background permissions
BLE protocols
Encryption layers

Automate background synchronization & connection

Users don’t understand:

Balance technical reliability with human-centred design

Users expect:

“It should just connect”

The Process

The Mental Model

We explored how users think about “connecting a device.”
» Key insight:
Users view pairing as a single action, not a multi-step technical process.
This informed a linear, guided setup flow rather than exposing system-level Bluetooth complexity.
Mapping System States

Bluetooth pairing includes multiple backend states:
Bluetooth disabled » Searching » Device discovered » Authenticating » Connecting » Connected » Syncing » Firmware update available
We translated these technical states into clear, human-readable feedback.
Designing for Reassurance

To reduce anxiety during setup, we introduced:
» Animated signal indicators during search
» Clear success confirmations
» Visible battery levels
» Device imagery for confirmation
» Transparent firmware update prompts
Each screen answered:
“What’s happening right now?”