Wearable Tech  ·  Product Design  ·  2025

Heatra

A discreet, adjustable method of providing relief from period cramps for women on the go.

Role
Product Designer
UI/UX · Co-creator
Team
5 members
Duration
11 weeks
Heatra wearable device

01  ·  The Problem

Period pain has
no good solution.

Existing remedies mean choosing between staying home with a hot water bottle or popping painkillers every few hours. There's nothing designed for real life — discreet, wearable, and adjustable on demand.

80%
of women experience dysmenorrhea (painful periods) at some point in their lives
1 in 3
women report period pain severe enough to disrupt daily work or school activities
0
wearable heating products designed specifically for on-the-go cramp relief

02  ·  Overview

What we built
and how.

My Contributions
Led UI/UX design for temperature control app, created mockups and interaction flows, explored visual concepts and prototypes
Product Type
Wearable hardware + companion mobile app for wireless temperature control
Key Constraint
Must be invisible under clothing, safe on skin, and operable with one thumb
Outcome
Functional prototype with confirmed material partnership from Grafren graphene textile manufacturer
Heatra worn on body

A thin, flexible heater worn against the skin — controlled entirely from your phone. No wires. No bulk. Just warmth, exactly where you need it.

Wearable Hardware Mobile App Control Temperature Range Graphene Textile Skin-Safe

03  ·  The Material

The world's first
active heating fabric.

Thickness
0.2 mm
Invisible under any fabric
Material
Graphene
Textile heater — flexible and washable
Heat Speed
Faster than carbon fiber alternatives
Temperature Range
100–160°F
Adjustable via app in real time
Material and battery diagram

04  ·  External Validation

Industry backing
from day one.

"We will be happy to help you with your project — and it will work."

CEO, Grafren  ·  Graphene Textile Manufacturer

05  ·  Final Design

The complete
system.

Heatra is two things working together — an ultra-thin graphene garment worn against the skin, and a companion app that gives you full control over heat intensity without touching the device.

Heatra — inside view heating layer
Physical Prototype

Ultra-thin graphene heating layer — 0.2 mm, skin-safe, wireless

Wearable garment exterior
The wearable
Worn on body
In-context use
Battery and heating element
Heating element
Companion App

A calm, one-thumb UI designed for use mid-cramp — adjust heat intensity, set a schedule, and connect the device without ever leaving the couch.

Onboarding
Onboarding