The Instant Blood Pressure app estimates blood pressure with your smartphone and our algorithm

Learn the science & performance characteristics


THE SCIENCE

Through years of physiological data collection, research, and development we have built a digital bio-marker processing platform which leverages pulse activity, mechanical cardiac activity, and proprietary vascular indices. All of this bio-data can be collected using the everyday sensor suite present in a modern smartphone device. Many of these features represent new discoveries on our team's part while others represent features that have been well documented in peer-reviewed clinical research. Instant Blood Pressure's algorithm leverages our unique discoveries, well understood biometrics, and each user's unique anthropometric data to produce each blood pressure estimate. No smartphone hardware accessory required!


HOW It WORKS

Produce an Instant Blood Pressure estimate in under 35 seconds:

Remove any phone case and place right index finger over the rear camera lens and flash.


Remove any phone case and place right index finger over the rear camera lens and flash.

Maintaining finger over the camera and flash, place the bottom of the phone in direct chest contact using firm and steady pressure. 


Maintaining finger over the camera and flash, place the bottom of the phone in direct chest contact using firm and steady pressure. 

Hold position still and quiet until the session is complete. See estimate.


Hold position still and quiet until the session is complete. See estimate.


About Us

It is our company’s mission to help people better access health insight. We envision a future where mobile technology plays a central role in helping people pursue their health and wellness goals. Instant Blood Pressure is a novel and constantly improving system which leverages recent advances across industry and academia in mobile sensor technology, machine learning techniques, and physiological understanding. We are proud to be building technology which aims to help users live happier and healthier lives.



System Performance Details

Updated: April 19th, 2016 11:30 AM PT
IBP Algorithm v3 Production Launch Date: April 8th, 2016

For reference, we conduct internal studies guided by the ANSI/AAMI/ISO 81060-2:2013 internationally-accepted protocol for blood pressure cuff performance assessment to develop the performance characteristics of the technology powering Instant Blood Pressure. The performance characteristics of Instant Blood Pressure and other important safety and intended use information are included below.

Details & Results

These performance characteristics are developed through an in-house study using the ANSI/AAMI/ISO 81060-2:2013 protocol modified to compare Instant Blood Pressure to reference upper-arm, oscillometric blood pressure cuff devices. The results of this study find that Instant Blood Pressure does not yet meet the performance standards set forth by the ANSI/AAMI/ISO 81060-2:2013 protocol and, for this reason, it provides an estimate of blood pressure only. Furthermore, traditional automated upper-arm blood pressure monitors are currently more accurate and provide blood pressure readings over a greater range than Instant Blood Pressure.

Systolic BP Supported Range†:

  • 83 - 178 (mmHg)
  • Total Range: 95 (mmHg)

Systolic BP Accuracy*:

  • Mean: +2.7 (mmHg)
  • SD (Sm): 12.8 (mmHg)
  • SD (Sn): 13.9 (mmHg)
  • RMSD: 14.1 (mmHg)
  • Pearson: r=0.755 (P<0.0001)

Systolic Data:

  • Number of Determination Pairs: 266
  • Subjects:
    • Number (n): 99
    • Number Males: 65
    • Age (years): 37 ± 15 (Min: 18, Max: 79)
    • Weight (lbs): 180.7 ± 44.8 (Min: 116.0, Max: 305.0)
    • Height (in): 66.9 ± 3.6 (Min: 59.0, Max: 75.0)

Diastolic BP Supported Range†:

  • 58-107 (mmHg)
  • Total Range: 49 (mmHg)

Diastolic BP Accuracy*:

  • Mean: +2.6 (mmHg)
  • SD (Sm): 8.4 (mmHg)
  • SD (Sn): 8.8 (mmHg)
  • RMSD: 9.2 (mmHg)
  • Pearson r=0.744 (P<0.0001)

Diastolic Data:

  • Number of Determination Pairs: 258
  • Subjects:
    • Number (n): 97
    • Number Males: 63
    • Age (years): 37 ± 15 (Min: 18, Max: 79)
    • Weight (lbs): 180.6 ± 45.3 (Min: 116.0, Max: 305.0)
    • Height (in): 66.9 ± 3.7 (Min: 59.0, Max: 75.0)

Pulse Rate Range†:

  • 39-240 (bpm)
  • Total Range: 201 (bpm)

Pulse Rate Accuracy*:

  • Mean: +0.9 (bpm)
  • SD (Sm): 3.0 (bpm)
  • SD (Sn): 3.6 (bpm)
  • RMSD: 3.7 (bpm)
  • Pearson r=0.955 (P<0.0001)

Pulse Rate Data:

  • Number of Determination Pairs: 268
  • Subjects:
    • Number: 99
    • Number Males: 65
    • Age (years): 37 ± 15 (Min: 18, Max: 79)
    • Weight (lbs): 180.7 ± 44.8 (Min: 116.0, Max: 305.0)
    • Height (in): 66.9 ± 3.6 (Min: 59.0, Max: 75.0)

 

† Instant Blood Pressure will not produce an estimate outside of its supported range. Do not attempt to use Instant Blood Pressure to produce a reading outside of its range. If you know your blood pressure or pulse rate to fall outside this range or if you intend to estimate blood pressure or pulse rate outside of this range, Instant Blood Pressure is not suitable for your use.

* Mean = mean difference compared to reference, SD = standard deviation of difference. RMSD = root mean squared deviation. Pearson = Pearson correlation coefficient with reference. This accuracy characteristic is representative of the supported range only. Accuracy performance may be poor outside of the supported range.


caution: Important Safety & USE Information

Use Instant Blood Pressure to estimate blood pressure and pulse rate immediately before, during, or after a recreational activity.

For example, Instant Blood Pressure may be used to estimate cool-­down and recovery from cardiovascular exercise or estimate the impact of a meditation session or breathing exercise on pulse rate and blood pressure. Instant Blood Pressure is intended to be used by adults 18 years of age or older and it has not been tested for use on children or pregnant women.

Do not rely on Instant Blood Pressure for medical advice or diagnosis. 

Instant Blood Pressure is intended for recreational use only. It is not a replacement or substitute for a cuff or other blood pressure monitor. Instant Blood Pressure’s performance and accuracy characteristics do not meet international standards for a blood pressure monitor intended for clinical use.

Instant Blood Pressure is not a replacement or substitute for a cuff or other blood pressure monitor. 

Blood pressure cuffs and other blood pressure monitors are medical devices intended for clinical use. Instant Blood Pressure is intended for recreational use only. Blood pressure cuffs and other blood pressure monitors are currently more accurate than Instant Blood Pressure and provide a wider range of measurement. Instant Blood Pressure provides an estimate of blood pressure only.

Consult your doctor if you have any health concern. Do not self-­adjust medications.

Take medications as prescribed by your doctor. Only a doctor is qualified to diagnose and treat disease such as hypertension (i.e. high blood pressure). Self-­diagnosis and self-­treatment may lead to deterioration of your health.

Do not use Instant Blood Pressure if you wear a pacemaker or any internal electronic medical device. 

Use of a cell phone in close proximity to a pacemaker or other internal electronic medical device can interfere with its normal operation.