Sleeker, smarter, and made for you
Expertly crafted for quality and precision, Oura Ring 4 provides valuable insights into your holistic health – sleep, activity, stress, heart health, cycle and more.
Smart Sensing powers our most accurate smart ring ever
Increases accuracy
Provides continuous data for a holistic picture of your health.
Adapts to you
Understands your unique finger and finds the best signal in any situation.
Optimizes battery
Works continuously in the background to optimize battery life.
NURBLOX™ Smart Blood Pressure Watch
White
Sale price
$198.00
Regular price
$240.00
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NURBLOX™ Smart Blood Pressure Watch
$198.00
$240.00
Save $42.00
Doctor-inspired health tracking meets next-generation biosensor technology — monitor blood pressure trends in real time, capture medical-grade ECGs on demand, and share intelligent health reports with family or your doctor in seconds.
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Advanced Blood Pressure Monitoring
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Real-Time ECG + AFib Detection
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24/7 Heart Rate & SpO₂ Tracking
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Electrocardiogram (ECG) Function
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Blood Oxygen (SpO₂) Monitoring
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Sleep Tracking & Insights
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ECG Real-Time
LIVE
Blood Pressure
116/78 mmHg
ECG Real-Time
LIVE
Blood Pressure
116/78 mmHg
Integrated Precision Architecture
NURBLOX's advanced sensing system combines a high-accuracy pressure sensor, micro air-control module, and intelligent health algorithms — working together to deliver reliable blood pressure readings, comfortably and consistently.
Learn About NURBLOX Integrated System
NURBLOX Integrated Health System
Built around a precision air-assisted sensing structure, NURBLOX measures blood pressure with greater stability and accuracy — using intelligent calibration and adaptive monitoring algorithms.
The system continuously analyzes cardiovascular signals, helping you monitor heart rhythm, blood oxygen, and overall health trends — all from a single device.
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Sleep Score
The answer to 'how did you sleep last night?' Your score is based on your total sleep, heart rate variability (HRV), nighttime movement, sleep regularity, and more.
How It Works
From your wrist to real BP insight — in seconds.
No cuff. No clinic. NURBLOX tracks your blood pressure continuously and turns daily readings into patterns you can actually act on.
01
Wear it on your wrist
Slip on NURBLOX and go about your day. The optical sensor sits against your pulse point — no cuff, no setup, no interruption to your routine.
02
Read your blood pressure
At any moment, NURBLOX estimates your systolic and diastolic ranges directly from your wrist. A clear reading in seconds, anytime you need it.
03
Track your trends
The NURBLOX app plots every reading into a living chart — morning vs. evening, weekday vs. weekend. You'll start seeing patterns you never knew existed.
04
Build better habits
See exactly how sleep, stress, hydration and movement shift your numbers. When the data is right in front of you, small changes start to stick.
WHY CHOOSE US
A smarter way tomonitor your health
YOUR BRAND
Smart Health Watch
24/7 monitoring
Wearable & discreet
Tracks HRV, SpO2
No discomfort
App insights
HSA/FSA eligible
7+ days battery
TRADITIONAL
Sphygmomanometer
Single reading
Bulky cuff
BP only
Cuff inflation
Manual reading
Varies
Wired/battery
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This is for you if...
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You want consistent daily health monitoring
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You're buying for yourself or as a gift
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What's Included
- Oura Ring 4
- Size-specific charger
- USB-C cable
Tech Specifications
Sensors
- 18 LED sensors for heart rate
- 7 temperature sensors
- 3D accelerometer
- Gyroscope
Compatibility
- App available in 40+ languages
- Metric and imperial units
- Integrations with Apple Health
- iOS 15+ and Android 9+
Weight and Dimensions
- Width: 7.2mm
- Thickness: 2.4mm
- Weight: 3.3-5.2g
Battery Life
- Up to 8 days
- 20-80 minutes charge time
Quality Materials
- Titanium shell
- Water resistant up to 100m
- Scratch-resistant coating
- Hypoallergenic materials
Connectivity
- Bluetooth Low Energy
- Automatic firmware updates
- EMF-safe design
- Airplane mode
- FCC certified
HEART RHYTHM
Normal
Sinus Rhythm • No AFib Detected
ECG MONITORING
A 30-Second ECG. Any Time. Right Now.
Place your finger on the side button. Wait 30 seconds. NURBLOX generates a medical-quality ECG — detecting atrial fibrillation before symptoms appear.
AFib affects 1 in 4 people over 60. NURBLOX checks for it every time you ask.
Single-Lead ECG
AFib Detection
30-Second Scan
PDF Export
BLOOD PRESSURE
No Cuff. No Squeezing. No Waiting Room.
Continuous monitoring with automatic alerts when your blood pressure enters unsafe ranges. Get real-time insights without the hassle of traditional cuffs.
LIVE
Systolic
0
Diastolic
0
NORMAL
·
UPDATED 9:26 AM
Light
Deep
REM
Sleep Score
0
7h 24min · 1h 12min Deep Sleep
Sleep Intelligence
Bad Sleep Is Slowly Aging Your Heart.
Adults over 55 with poor sleep quality have 2x the risk of developing high blood pressure. NURBLOX tracks deep sleep, REM cycles, and breathing patterns to help you understand and improve your sleep health.
→
ALERT SENT
Heart Rate Alert
HR: 142 BPM · Notifying Family
NURBLOX Health
Heart Rate Alert
HR 142 BPM · Family Notified
now
Sarah (Daughter) Notified · 3 mins ago
SAFETY & FAMILY CONNECT
Your Family Sleeps Better When You Wear This.
When NURBLOX detects abnormal heart rate, blood oxygen, or sudden falls, it instantly sends alerts to up to 3 family members with your real-time location and vital signs.
Live independently. Stay protected. Give your loved ones peace of mind.
FULL SPECIFICATIONS
Every Detail. No Surprises.
DISPLAY & DESIGN
Screen Size
1.96" AMOLED TFT HD
Resolution
240 × 286 px
Case Material
Zinc Alloy + Tempered Glass
Band Width
22mm Universal
Weight
48g (without band)
Water Resistance
IP67
HEALTH SENSORS
Blood Pressure
Optical PPG (Cuff-Free)
ECG
Single-Lead Electrode
Heart Rate
Continuous 24/7 HR
Blood Oxygen
SpO2 (±2%)
Temperature
Body Temp Monitoring
Sleep
Light, Deep, REM Stages
BATTERY & CHARGING
Battery Life
Up to 7 days
Standby
Up to 30 days
Capacity
280 mAh Li-Polymer
Charging
Magnetic Cable (2-pin)
Charge Time
~2 hours to full
CONNECTIVITY
Bluetooth
BT 5.0 LE
App
iOS 9+ / Android 5+
Notifications
Calls, SMS, Apps
Sport Modes
100+ Activities
Languages
20+
Certifications
FDA · CE · FCC · RoHS
Screen Size
1.96" AMOLED TFT HD
Resolution
240 × 286 px
Case Material
Zinc Alloy + Tempered Glass
Band Width
22mm Universal
Weight
48g (without band)
Water Resistance
IP67
Blood Pressure
Optical PPG (Cuff-Free)
ECG
Single-Lead Electrode
Heart Rate
Single-Lead Electrode
Blood Oxygen
SpO2 (±2%)
Temperature
Body Temp Monitoring
Sleep
Light, Deep, REM Stages
Battery Life
Up to 7 days
Standby
Up to 30 days
Capacity
280 mAh Li-Polymer
Charging
Magnetic Cable (2-pin)
Charge Time
~2 hours to full
Bluetooth
BT 5.0 LE
App
iOS 9+ / Android 5+
Notifications
Calls, SMS, Apps
Sport Modes
100+ Activities
Languages
20+
Certifications
FDA · CE · FCC · RoHS
Customer Reviews
Real Stories from Real Customers
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Questions & Answers
Frequently asked questions
It's clinically validated and highly accurate for continuous monitoring. NURBLOX uses PPG optical sensors calibrated against cuff measurements. For trend monitoring and daily tracking, it's extremely reliable. We recommend sharing your DOMCH readings with your doctor — most are impressed by the accuracy.
Please consult your cardiologist before use if you have an implanted cardiac device. The ECG feature emits a small electrical signal that should not interfere with modern pacemakers, but every situation is unique and your doctor's guidance takes priority.
We're here 7 days a week. Our customer support team specializes in helping first-time smartwatch users of all ages. The large-print guide walks you through every step with pictures. If you get stuck, one phone call and we'll walk you through it personally.
It's completely simple. If you're not satisfied for any reason within 90 days, email us or call us. We issue a full refund — no restocking fees, no return shipping costs, no interrogation. We pay for return shipping. Your money back, period.
Your data belongs to you, only. NURBLOX stores your health data encrypted on the companion app. We never sell, share, or monetize your personal health information. You control who sees your data.
Works with virtually any smartphone made in the last 8 years. Compatible with iPhone (iOS 9 and newer) and Android (5.0 and newer). If your phone can run modern apps and has Bluetooth, it will work with NURBLOX.
The band adjusts to fit wrist circumferences from 130mm to 220mm — covering the full range from small to large adult wrists. The magnetic butterfly clasp makes it easy to put on and take off without fumbling, even if you have limited finger mobility.
Yes — it's IP67 water resistant. Splashes, rain, and brief water exposure are fine. We don't recommend wearing it swimming or submerging it for extended periods. Quick showers and hand washing are completely safe.