FAQ Updated: May 3rd, 2023

What is U-Scan?

U-Scan is a new product category at Withings which aims to unlock the wealth of health information to be found via regular at-home urine analysis. It is a versatile cartridge-based platform able to detect, measure, and analyze multiple parameters found in urine.

Are the U-Scan Cycle Sync and Nutri Balance medical devices?

The U-Scan Nutri Balance and Cycle Sync cartridges are not medical devices, both are intended to encourage and/or help the user maintain a healthy lifestyle.

What is the U-Scan Cycle Sync cartridge intended for?

U-Scan Cycle Sync will be a wellness assistant designed for women, consisting of an app, a connected reader, and disposable cartridges which will allow the follow-up and the prediction of menstruation and the duration of a menstrual cycle. Based on hormonal measurement (LH) and the evolution of certain urinary parameters (water balance, acid-base balance), U-Scan Cycle Sync will bring personalized recommendations (e.g. sleep, nutrition, physical activity) depending on the different menstrual cycle phases.

U-Scan Cycle Sync can detect the following parameters:

• LH (Luteinizing Hormone) to precisely predict periods
• Specific gravity to determine water balance
• pH to determine acid-base balance

Can I use U-Scan Cycle sync?

U-Scan Cycle Sync is currently suitable for women who, within the last three months, have met the following criteria:

• Menstrual cycle is between 21—35 days
• Not under the age of 18
• Not on hormonal treatment such as birth control, fertility treatment or hormonal therapy
• Not diagnosed with PCOS (polycystic ovary syndrome)
• Not currently or recently pregnant (in the last 3 months)
• Not breastfeeding / have not breastfed recently (in the last 3 months)
• Not experiencing menopausal symptoms (such as hot flashes)

Please note: 

• U-Scan Cycle Sync can't be used as a contraceptive method.
  
• U-Scan Cycle Sync can't be used to control or assist conception.
  
• U-Scan Cycle Sync can't predict ovulation/fertile period.
  
• U-Scan Cycle Sync will not be a medical device, and is not intended for the diagnosis, treatment or control of disease.
  
• The data will be provided for informational purposes only, and will not replace the results of medical laboratory tests.

What is the U-Scan Nutri Balance intended for?

U-Scan Nutri Balance is a wellness assistant, consisting of an app, of a connected reader and consommables (cartridges) which will allow the follow-up of the evolution of certains urinary parameters (water balance, acid-base balance, vitamin C levels and energy metabolism) to provide personalized lifestyle recommendations (e.g. sleep, nutrition, physical activity).

U-Scan Nutri Balance can detect and measure the following parameters:

• Specific gravity to determine water balance
  
• pH to determine acid-base balance
  
• Ketones for energy metabolism
  
• Vitamin C levels

Can I use U-Scan Nutri Balance?

U-Scan Nutri Balance was designed for anyone who is interested in balancing their nutritional health by analyzing key parameters alongside expert-reviewed and actionable insights (e.g. workouts, recipes, tips) to achieve their goals.

Because urine parameters reference ranges are very different for babies, children and teens, we don’t recommend that people under 18 use the Nutri Balance cartridge.

U-Scan Nutri Balance and the Withings App will not be medical devices, and will not be aimed to deliver a diagnostic, to cure or to control diseases.

The data are only given for information, and will not replace results from test conducted in a medical laboratory.

When will U-Scan be available?

U-Scan will first be made available in Europe starting at the end of the second half of 2023 with the two consumer cartridges: Nutri Balance and Cycle Sync

What is U-Scan for professionals?

Withings Health Solutions, the company’s division serving the professional health market, is making the device available to partners for research and tailored use case purposes to extend the possibilities offered by the U-Scan platform.

More information on U-Scan's professional applications can be found at https://www.withingshealthsolutions.com/

How accurate is U-Scan?

Performance has been validated by a third-party lab accuracy study.

What are the technical features (size / weight / components) of U-Scan?

U-Scan is composed of 2 parts:

The Reader: This technologically advanced pebble-shaped device contains all the components required for urine sample collection, analysis by optical means, and data transfer by Bluetooth or Wi-Fi connection. Reader dimensions are ⌀ 90 x 28.5 mm, and the weight is 110 grams.

The Cartridge: This interchangeable component is a cylindrical plastic part inserted in the Withings U-Scan Reader which contains dozens of test pods composed of chemical reagents which can detect the level of various human biomarkers in urine. Cartridge dimensions are ⌀ 62.55 x 15 mm, and weight is 15 grams.

What connectivity is required to use U-Scan?

The Withings U-Scan Reader is equipped with BLE and Wi-Fi connectivity. The test results are transmitted by Wi-Fi, as a result U-Scan cannot be used without a functional wifi connection. A BLE-ready smartphone with iOS 14 or Android 8 or higher is required to install the device.

How long does the U-Scan battery last?

The U-Scan battery is designed to last for up to 3 months, and each cartridge is also designed to last for 3 months.

Is my toilet compatible with U-Scan?

U-Scan is designed to be compatible with most Western-style toilets. The device can be mounted within the toilet bowl thanks to an included fixation arm. The product includes several fixation arm sizes making it able to adapt to most toilet shapes.

How does the U-Scan device stay clean within the toilet?

U-Scan was specifically designed to live in the toilet environment. When closed, the product is splash and water resistant, urine or toilet pollutants cannot penetrate to the inside.

U-Scan is made with a glass-fiber reinforced material that can resist the toilet environment. The product's surface is designed to be rinsed with each toilet flush, just like the ceramic of the toilet bowl.

How much does U-Scan cost?

Users will be able to buy U-Scan Cycle Sync or Nutri Balance starter kit for 499.95€ to get one U-Scan reader and one cartridge that provides 3 months of testing.

Users will then have a choice to subscribe to automatic refills and in-app coaching for an estimated monthly amount of 29,95€ or buy standalone cartridges on withings.com.

How do you change your cartridge or charge the device?

If already installed, you simply remove U-Scan from your toilet via the fixation arm and follow cleansing instructions.

Open the device by unscrewing the front case to access the inside of the product. Remove the cartridge if already inserted, and insert the new cartridge. Then go to the Withings App to follow the installation procedure.

While open, plug the USB-C charging cable to the reader’s port and a power source. Once charged, remove the charging cable and close up the front case.

How many parameters can be analyzed in a cartridge?

Each cartridge includes more than 100 biomarker results, which is designed to provide up to 3 months of testing when following the recommended measurement plan in the Withings App.

What is Stream ID?

To prevent the collection of urine from someone else during the user testing window, we've developed a technology able to differentiate users called Stream ID. This feature aims to differentiate the main user from another person using the toilet and decide to analyze only the main user’s urine.

Using a Radar sensor, Stream ID can differentiate an individual by the signature of the urine stream, characterized by its speed, distance and dispersion.