HART X2 smart ring with its charging case in silver, black and gold

Know your body better

Accurately track your daily life delivering accurate insights on sleep, recovery, stress and cardiovascular health.

Get Your Ring

Decode body signals

HART ring exploded view showing the titanium shell, sensor layer and inner core

While you live your life

Understand what’s happening beneath the surface with actionable insights into your recovery, stress, readiness, and health.

Designed for everyday

Always with you

The best health insights come from a device you never leave behind.

HART charging case

Effortlessly wearable

Lightweight, comfortable, and designed to stay on from morning to night.

HART charging case, closed

Ready to go

One charge gives you up to 8 days of continuous health insights.

HART ring resting in its open charging case

Build to belong

Designed to fit naturally into your routine, not interrupt it.

HART ring, side view

Sleek by design

Powerful sensors, thoughtfully packed into a remarkably compact form.

HART ring tilted to show its sensors

Crafted to last

Water resistant up to 50 meters and built to move through workouts, sleep, and everything in between.

HART ring, three-quarter view

Put it on

A durable, premium finish designed for everyday wear. Then forget it’s there.

A hand wearing the HART ring
Wellbeing, comfortably yours

Understand Recovery

Sleep, stress, and recovery affect your energy, focus, and performance every day.

Gold HART ring resting on a rock ledge under a blue sky

AI health assistant

Ask questions and get personalized insights from your health data.

FITTR app AI health assistant on a phone
Personalized Health InsightsVoice Based ConversationsActionable Recommendations

Built for precision

HART ring, front view
Battery Life8 days on full charge
Water resistance50 meters
ChargingWireless charging case (USB-C to charge the case)
ColorsGun Metal Black | Sterling Gold | Frost Silver
Build MaterialTitanium
ComplianceHIPAA | GDPR
ConnectivityLow Powered Bluetooth
AppFITTR One by FITTR | Android + iOS

Things you would want to know

The HART ring is a wearable wellness tracker that tracks your daily vital signs, sleep patterns, and level of fitness. It gives you a coupled smartphone app with access to comprehensive biometric insights.

HART is water resistant up to 50 meters, so it can go with you through workouts, showers, swims and sleep.

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One full charge gives you up to 8 days of continuous health insights. The wireless charging case tops the ring back up when you’re not wearing it.

Track your health today.

Titanium build. 8 days of battery. Insights your coach can act on.

HART ring in its charging case

Questions? [email protected]