The Heir Pro — Ganance
Introducing

The Heir Pro

The first health tracker designed to disappear. All the biometrics, none of the compromise.

Early Founding Member $149 Price increases Jan 1, 2027
Invisible · Wear it anywhere · Ships Q4 2027
Reserve yours See full specs
The Heir Pro — angled view showing sensor array
The Heir Pro — side angle
The Heir Pro — top view
The Heir Pro — sensor detail
The Heir Pro — angled top view
The Heir Pro — profile view
Reservation pricing

The earlier you reserve,
the less you pay.

The Heir Pro ships Q4 2027. Reserve yours now at the lowest price available. Every quarter, the price goes up.

Early Founding Member Now open
$149
Now — Dec 31, 2026
Founding Member
$199
Jan 1 — Mar 31, 2027
Select Member
$279
Apr 1 — Jun 30, 2027
Reserve Member
$349
Jul 1 — Sep 30, 2027
Launch Member
$449
Oct 1, 2027 — delivery

Reserve with confidence.

Cancel any time
Cancel before shipment for a full refund. No questions.
21-day returns
After delivery, 21 days to return it if it's not for you. Full refund, no questions.
Price locked in
Your founding price is guaranteed.
Face Scan included free
A $7.99/month value, yours and available to use immediately at purchase.
1-year warranty
All Heir Pro hardware is covered for one year from the date of delivery.
Company history

Sold out. Twice.

January 2024
Alex founded Ganance.

"Why can't I have both? My watch and my data."

Our story →
September 2025
First batch ships to beta customers.

The Heir reaches real wrists.

Reservations open
Fall 2026
Second batch ships. Limited spots remaining.

We shipped our second sold-out batch in July 2026. A limited number of reservation spots remain for the Fall 2026 wave.

Reserve the Heir →
Pre-orders open
Q4 2027
Heir Pro ships. Pre-orders open at $149.

The same Heir, but with all the biometrics. Early Founding Member pricing starts at $149. Price goes up January 1, 2027.

Reserve yours — $149
Every reservation

What's included.

The Heir Pro
The device
The Heir Pro
Microsuction to your watch caseback, or snaps into the HeirBand. Completely invisible.
The HeirBand
The band
The HeirBand
When you're not wearing a watch, snap the Heir Pro in. Workout, sleep, lounge... tracking never stops.
Charging station
Power
Charging station
Full charge in under an hour. Charges in place, no removal needed.
Face Scan
Included free — $7.99/mo value
Face Scan
30+ health markers in 30 seconds. Available immediately at purchase.
72+
Hours of typical battery life on a single charge
9+
Biometric markers tracked continuously
50m
Water resistance. Swim, shower, and rain without worry
<8g
Total weight. You won't feel it.
Silent intelligence

Every metric that matters.

The Heir Pro monitors your body around the clock - invisible, seamless, and silent. No screen pulling your attention. Just data, working quietly in the background.

Heart Rate
Continuous background monitoring. On-demand readings available at any time through the Ganance app.
Heart Rate Variability
HRV derived from beat-to-beat data during sleep and qualifying rest periods. Historical trend tracking included.
Blood Oxygen (SpO2)
Optical SpO2 estimation during sleep and on-demand. A wellness indicator, not a diagnostic tool.
Skin Temperature
Continuous skin-temperature sensing with personal baseline tracking and deviation alerts.
Respiratory Rate
Breathing rate estimated from biometric and motion data during sleep and rest periods.
Stress & Recovery
Combined biometric, activity, and sleep signals produce a daily stress and recovery score.
VO2 Max
Cardiorespiratory fitness estimation derived from qualified biometric and activity data over time.
Blood Pressure Trend
Relative blood pressure trend tracking — best used as a directional tool over time, not a single-reading diagnostic.
Energy Expenditure
Resting, active, and total daily calorie estimates using your profile, biometrics, and activity context.
Sleep intelligence

The night shift.

The Heir Pro automatically detects when you fall asleep and tracks every stage - no buttons, no manual logging, no device to swap before bed.

Awake
Light sleep
Deep sleep
REM
Auto-detection
Detects sleep onset and wake time automatically.
Sleep staging
Awake, light, deep, and REM tracked across the full night.
Sleep quality score
A single daily score built from duration, staging, continuity, and biometrics.
Nap detection
Tracks primary overnight sleep as well as naps and interrupted sessions.
Silent alarm
Wake up with a gentle haptic tap. No sound, no light, no disruption for anyone else in the room.
HRV during sleep
HRV is captured during your most reliable measurement window — while you rest.
Hardware

Designed to disappear.

The Heir Pro is designed to go anywhere on your body and vanish completely. Microsuction to your watch caseback. Snap into the HeirBand for workouts or downtime. No screen, no bulk, no one knows it's there.

Size
Compact
Circular, low-profile design. Built to fit behind the vast majority of traditional watch casebacks.
Thickness
Thin
Designed to disappear. You won't feel it between your watch and your wrist.
Weight
Lighter than a nickel
Under 8 grams. Light enough to forget you're wearing it, wherever you choose to wear it.
Water resistance
Swim-proof
Safe to 50 meters. Pool laps, ocean swims, showers, rain — no limits, no caveats.
Battery
3+ days
More than 72 hours of continuous tracking on a single charge. Up to 4 days idle. A 10-minute top-up buys another 12 hours.
Charging
Fully charged in under an hour
Charges in place — no need to remove it from your watch. Plug in before bed, full before morning.
Haptics
Wrist alerts
Programmable haptic feedback for notifications, movement reminders, and gesture confirmation.
Updates
Gets better over time
Firmware and feature updates delivered wirelessly. New capabilities arrive automatically after ship.
Included at no cost — $7.99/month value

Face Scan is included with every Heir Pro.

30+ health markers in 30 seconds using your phone's front camera. No subscription, no add-on fee. Face Scan activates automatically in the Ganance app when it launches Fall 2026 — and carries forward to every Heir Pro owner at no charge.

How it compares

A different category entirely.

Every other tracker announces itself. The Heir Pro disappears — modular, invisible, and built to fit your life without changing how you look.

The Heir Pro Founding — $149 Smart Ring Fitness Band Smartwatch
Completely invisible — no screen, no bulk Yes × × ×
Continuous heart rate Yes ✓ ✓ ✓
Heart rate variability (HRV) Yes ✓ Some models ✓
Sleep staging — light, deep, REM Yes ✓ Some models ✓
Blood oxygen (SpO2) Yes ✓ Some models ✓
Skin temperature tracking Yes ✓ Some models Some models
Blood pressure trend Yes Some models × Some models
Face Scan — 30+ markers from your phone camera Included free × × ×
Modular — multiple wear positions on body Yes × × ×
Battery life 3+ days 4–7 days 5–7 days 18 hrs – 3 days
Water resistance 50 meters 50–100 meters 50 meters 50 meters
Starting price $149* $299+ device
+ $6–18/mo subscription		 $249+ device
+ $30/mo subscription		 $399+ device
+ $10/mo subscription
* Early Founding Member price. Increases Jan 1, 2027.
Ganance Heir

Heir Pro

$149 (Pre-order)