πŸ’Ž

Lumysi

Wellness that wears like jewelry

Page 1 of 9 — Launch & Onboarding
01 β€” Splash
9:41
●●●
πŸ’Ž

Lumysi

Wellness that wears like jewelry

02 β€” Permissions

A few permissions

So your bracelet can talk to your phone and surface insights gently, in the background.

πŸ“Ά

Bluetooth

Required to pair and sync with your Lumysi bracelet.

πŸ””

Notifications

Gentle nudges for sleep, recovery and cycle insights.

❀️

Health data

Read and write to Apple Health Β· Google Fit.

You stay in control. Permissions can be revoked anytime in Settings.

03 β€” Pairing

Step 2 of 3

Pairing your bracelet

Hold your Lumysi near the phone. We will find it in a moment.

πŸ’Ž

● Scanning

Looking for nearby devices…

πŸ’Ž

Lumysi Β· A4:7C:E2

Signal strong Β· βˆ’52 dBm

CONNECT
01 β€” Today Dashboard

Tuesday Β· May 26

Good morning, Sarah

SK

Readiness

87

Optimal

Your body is well-recovered. A good day to push a little.

Activity

6,420

steps Β· 4.1 km

Recovery

92%

restored

Today's insight

Your HRV trended up overnight

Average rose 8 ms versus last week. Sleep consistency is paying off.

πŸ“…

View calendar

Trends across the month

β€Ί
01 β€” Vitals Dashboard

Vitals

Live from your bracelet Β· synced 2 min ago

Heart Rate

68 bpm

Resting Β· normal range

Resting HR

54

↓ 2 vs avg

HRV

62 ms

↑ 8 vs avg

Respiratory

14 br/min

Steady

Skin Temp

+0.2Β°

vs baseline

Strain Today

Moderate

12.4 out of 21 Β· room to push or recover, your call.

πŸ“ˆ

Cardio fitness

VOβ‚‚ max Β· 41.2 Β· above average

β€Ί
01 β€” HR 7-Day Chart
←

Heart Rate

Day
Week
Month
Year

7-day average

66 bpm

↓ 1.4 vs last week
MonTueWedThuFriSatSun
Max
Avg
Resting

Interpretation

A calmer week than usual

Resting HR is down 1.4 bpm versus last week. Consistent sleep and lighter caffeine appear to be helping recovery.

01 β€” Sleep & Cycle Overview

My Health

Sleep, cycle and how they shape your week

Last Night

7h 42m

Sleep score 88 Β· Excellent

πŸŒ™
11:02 PM6:44 AM

Cycle Β· Day 14

Ovulation window

PEAK
MenstrualFollicularOvulationLuteal
βš–οΈ

Hormonal balance

Estimated from temperature + HRV

✨

Lifestyle correlation

Sleep quality is 12% higher on days with morning walks.

01 β€” Cycle Phase Detail
←

Cycle insights

Current cycle

Day 14 of 28

PEAK
MENSTRUALFOLLICULAROVUL.LUTEALD1D5D10D14D18D23D28

Curve = skin temperature deviation from baseline (Β°C)

Peak fertility

Today and tomorrow

Temperature rose 0.34Β°C overnight, the strongest signal in this cycle. HRV pattern aligns with ovulation.

Avg cycle

28 days

Β±1.2 days

Next period

Jun 9

in 14 days

01 β€” Profile / Device

Profile

πŸ’Ž

Lumysi Β· Rose Gold

Connected Β· syncing in background

Battery

82%

Firmware

2.4.1

Signal

Strong

πŸ”„

Firmware update available

v2.5.0 Β· install now

β€Ί
πŸ””

Notifications

Sleep, recovery, cycle

πŸ“

Units

Metric Β· Β°C Β· km

β€Ί
πŸ”’

Privacy & data

Health data is end-to-end encrypted

β€Ί
❀️

Apple Health Β· Google Fit

Connected Β· 2-way sync

β€Ί
πŸ’¬

Support

Get help, send feedback

β€Ί
01 β€” Update in Progress
←

Firmware update

πŸ’Ž

● Installing

66%

Step 2 of 3 Β· writing image to bracelet

Currentv2.4.1
Installingv2.5.0
2.1 MB of 3.2 MB~ 40 sec left
⚠️

Do not disconnect

Keep your phone near the bracelet until install completes.

Lumysi V1

A jewelry-inspired wellness companion for iOS and Android, paired with the Lumysi BLE bracelet. Decodes raw sensor data into a calm, premium experience covering readiness, vitals, sleep, cycle and hormonal balance. Designed to feel closer to a wellness ritual than a technical dashboard.

βš™οΈ

Tech Stack

Flutter 3.x Β· iOS + Android
flutter_blue_plus (BLE GATT)
Nordic DFU Β· OTA pipeline
Riverpod Β· Drift (local store)
Node.js + Fastify Β· PostgreSQL
Apple HealthKit Β· Google Fit
Firebase Auth + FCM
Sentry Β· Mixpanel Β· CodePush
🧠

Core Technologies

  • Flutter β€” Single codebase, native feel on both stores
  • BLE GATT β€” Custom services for vitals, sleep, cycle, OTA
  • Nordic DFU β€” Secure signed firmware updates over BLE
  • Insight engine β€” Sleep Β· cycle Β· hormonal Β· recovery models
  • Node + Postgres β€” Cloud sync, encrypted health data, multi-device
πŸ“¦

V1 Deliverables

βœ“
iOS and Android apps in Flutter, signed for App Store + Play Store submission
V1
βœ“
BLE comms layer with GATT service + characteristic discovery, packet parsing, retry and reconnection
V1
βœ“
OTA firmware update flow with Nordic DFU, integrity checks, resume on disconnect
V1
βœ“
Today tab: readiness ring, activity, recovery, daily insight cards
V1
βœ“
Vitals tab: HR, RHR, HRV, respiratory rate, skin temperature, strain, cardio fitness with 7-day trends
V1
βœ“
My Health tab: sleep stages, cycle tracking with phase chart, hormonal balance, lifestyle correlations
V1
βœ“
Profile tab: device status, battery, firmware, units, notifications, privacy, support
V1
βœ“
Onboarding, permissions, account creation, bracelet pairing flow
V1
βœ“
Apple Health + Google Fit two-way sync
V1
βœ“
End-to-end encrypted health data at rest and in transit
V1
β†’
Personalised coaching from longitudinal trends
V2
β†’
Premium subscription tier with deeper hormonal and fertility insights
V2
β†’
Apple Watch + Wear OS companion glances
V2
β†’
Family sharing for cycle and recovery summaries
V2
β†’
Clinician export and PDF reports
V2
β†’
Multi-bracelet households on one account
V2
πŸ›

Architecture Layers

MOBILE
Flutter Β· Riverpod Β· Drift cache Β· Sentry
BLE
flutter_blue_plus Β· GATT services Β· Nordic DFU Β· packet parser
API
Node + Fastify Β· JWT Β· OpenAPI Β· webhooks
DATA
PostgreSQL Β· S3 cold storage Β· Redis cache Β· field-level encryption
HEALTH
Apple HealthKit Β· Google Fit Β· 2-way sync
OPS
Fly.io Β· GitHub Actions Β· Firebase Β· Mixpanel Β· CodePush