Important notice: in light of improving covid situation and diminishing need for testing, we will be ending our service by 12 May 2023. We want to thank everyone for choosing our service and allowing us to support the community. For those who have any unused services, please do so by 12 May 2023. If you have any questions, please do not hesitate to email .
[🐰CNY SALE 🧧] Save Up to 15% on FlowFlex™ Multi Pack Sets & At-Home RT-PCR COVID-19 Testing Kits
Use code: CNY23PS
Flowflex™ COVID-19 Rapid Antigen Test
Test Kit + Sample Pick-up Service
490 HKD
1 item
Test Kit
390 HKD
1 item
Single Pack
390 HKD
HK$ 38
1 item
Multi Pack x 5
390 HKD
HK$ 175
1 item
Multi Pack x 25
390 HKD
HK$ 750
1 item
At-Home Testing
Flowflex™ COVID-19 Rapid Antigen Test

The Flowflex™ COVID-19 Rapid Antigen Test is the most accurate rapid antigen test on the market*. Detect Omicron, Delta and other COVID-19 variants, with 98.8% accuracy in less than 15 minutes.

Approved globally by 40+ countries; European Union, China, United Kingdom, Singapore, Australia, Canada and more.
Accurate results with 97.1% sensitivity and 99.5% specificity.
Suitable for children of 2 years and above.
Works for symptomatic and asymptomatic COVID-19 cases.
100% money back guarantee - T&C apply
  • This offer is applicable for Hong Kong local students and education staff.
  • Applying the above promo code implies that you understand that this offer only applies to Hong Kong local student and education staff.
  • This offer is also available in our Circle by Prenetics store at K11, please present a valid student or staff ID card upon purchase.
  • This offer only applies to Flowflex™ Multipack x5 and Multipack x25 orders.
  • Only 1 discount code can be used per order.
  • Free Dettol Anti-bacterial Handwash Pine 500g per order is offered while stocks last.
  • Your free Dettol Handwash will not be reflected on your invoice. Rest assured, it will be shipped to you alongside your Flowflex™ order.
  • Prenetics and Project Screen reserves the right of final decision.
[BLACK FRIDAY SALE 🛍] Save Up to 15% on FlowFlex™ Multi Pack Sets
- Use Code: BFCM22PS
- Buy 1 FlowFlex™ Multi Pack, Save 10%
- Buy 2 or more FlowFlex™ Multi Packs, Save 15%
- Applicable for FlowFlex™ Multi Pack 5T and 25T only
*Offer valid from Nov 24 - Nov 30, 2022
Bulk Purchase

For employers to test employees, contact us.

Regarding Recent FDA Statement
Also Available at

Most Accurate Rapid Antigen Test on the Market*

Based on two global independent validation studies.

Flowflex™ COVID-19 Rapid Antigen Test outperformed all rapid antigen test kits in the Independent Nationwide Clinical Sensitivity and Specificity Study led by Copenhagen University Hospital, Denmark comparing 46 different tests..

In addition, Flowflex™ is the most accurate antigen test for the Omicron variant, out of 7 EU approved antigen test kits in an independent validation study conducted by the University of Geneva.

Antigen Test
Omicron Sensitivity
Delta Sensitivity
Flowflex COVID-19 Rapid Antigen Test
Panbio COVID-19 Ag RapidTest Device
Standard Q COVID-19 Ag
Sure Status
2019-nCoV Antigen Test
COVID-19 Antigen Rapid Test
Onsite COVID-19 Ag Rapid Test

Approved by 40+ Governments

Flowflex™ is approved globally by 40+ governments including:

How it works

Step 1
5 gentle rotations in each nostril
Step 2
For 30 seconds inside the tube
Step 3
4 drops into the specimen well
Step 4
See Result
When timer reaches 15 minutes
What’s in the box

Flowflex™ Antigen Rapid Test

Frequently Asked Questions

What is the Flowflex™ COVID-19 Antigen Home Test?
The Flowflex™ COVID-19 Antigen Home Test is a rapid, reliable at-home test for detecting COVID-19, including the Omicron variant. The test is intended for self-testing, non-prescriptive use, meaning you can safely use it at home without a nurse’s help.
Who can use this test?
This test is authorized for nonprescription home use with self-collected (unobserved) direct anterior nasal (NS) swab specimens from individuals aged 14 years and older or with adult-collected anterior NS samples from individuals aged 2 years or older.
Where has Flowflex™ gotten regulatory health approval?
The Flowflex™COVID-19 Rapid Antigen Test is one of the only tests to receive approvals from multiple global health authorities. Please see the below links for reference:
Australia ARTG
Health Canada
China NMPA
European Union Health Commons
Hong Kong MDACS
Singapore HSA
United Kingdom MHRA
How accurate is this test? Has it undergone clinical validation?
The Flowflex™COVID-19 Rapid Antigen Test is clinically proven to have 98.8% accuracy based on a multi-site clinical study. Please click here to view the study.
What proof do you have that this test detects the Omicron and Delta variant?
The Flowflex™COVID-19 Rapid Antigen Test was part of an independent validation study by the University of Geneva, which compared 7 EU approved antigen test kits on their sensitivity to the Omicron variant. The study found Flowflex™COVID-19 Rapid Antigen Test to be the most accurate antigen test for the Omicron and Delta variant out of those analysed. The study compared the sensitivity and specificity of the 7 test kits, and was supported by the Swiss National Science Foundation and the Foundation for Innovative New Diagnostics (centre collaborating with WHO).

Please see the full study here.
Why should I get tested?
Knowing whether you have COVID-19 can help you prevent the spread of the virus and ensure you are getting the proper care. It also gives you an opportunity to inform those you have been in close contact with, so they may also be tested. Some individuals who contract COVID-19 are asymptomatic and may not be aware they have it, meaning that they are potential carriers who can pass the virus on to others. COVID-19 is known to share many symptoms with the flu, the common cold, or allergies, so it is important to know as the actual disease may be masked by its symptoms.
How often should I get tested?
According to the CDC you may follow the recommendations below:
  • If you have any COVID-19 symptoms, you should get tested immediatel
  • If you were exposed to someone with COVID-19, test yourself at least 5 days after your exposure. If you test negative for COVID-19, consider testing again 1 to 2 days after your first test.
  • If you are going to an indoor event or a gathering, test yourself immediately before the gathering, or as close to the time of the event as possible.
Keep in mind that the testing results are only applicable to you at the point of testing. If you are practising social distancing and deemed low risk, you may not need to be tested frequently.
How much does the Flowflex™COVID-19 Rapid Antigen Test cost?
The test is available in a Single Pack, Multi Pack x 5 and Multi Pack x 25.

Single Pack
HKD 38
HKD 38 Per Test

Multi Pack x 5
HKD 175
HKD 35 Per Test

Multi Pack x 25
HKD 750
HKD 30 Per Test
I would like to order in bulk for my company. Do you offer bulk discounts?
When you choose to purchase a Multi Pack x 25, the price per test becomes only HKD 30. This discount will automatically apply at checkout and there is no discount code required. For business orders, please contact and please indicate your company name, the number of tests required and when do you require the tests.
Where can I buy the test?
You can buy the Flowflex™ COVID-19 Rapid Antigen Test online at, in-store at our Circle Stores, and also at CitySuper, Watsons, Mannings, and at HKTVMall.
How fast can you get a result?
The results are available in 15 minutes with a simple nasal swab. We advise you to set a timer to read the results at 15 minutes. Do not read results before 15 minutes or after 30 minutes is up, as they may not be accurate.
What does it mean if I have a positive test result?
A positive test result means that antigens from COVID-19 were detected in your sample and it is very likely you currently have COVID-19. If you receive a positive test result, the Hong Kong government recommends further nucleic acid testing (PCR test) for confirmation. While awaiting further testing, you should take personal protective measures and stay home as far as practicable. However, if you are experiencing severe symptoms you should consult a healthcare provider immediately. Learn more here.

Important Note: The chance that this test gives you a false-positive result is very small, meaning you should seek medical attention even if you think there might be a mistake.
What if I have an invalid result?
An invalid test result is likely due to two reasons:
  • Not enough specimen volume was collected.
  • Incorrect test operation.
When this happens, please review the instructions again and repeat the test with a new cassette. If in doubt, please seek help from your healthcare provider.
What is the difference between Antigen, PCR, and Circle HealthPod tests?
Antigen, PCR, and Circle HealthPod are different test options to detect COVID-19.
  • Antigen tests, such as the Flowflex™ COVID-19 Rapid Antigen Test, look for protein on the surface of the virus inside nasal samples. Antigen tests are more affordable, can be used at-home and can be used for mass screening of individuals.
  • PCR tests are molecular tests that detect genetic material inside the virus at a laboratory on a molecular level. This allows for more accurate early detection of the virus. PCR tests are more expensive and require a visit to a testing centre.
  • Circle HealthPod is a molecular test that you can perform at home for self-testing to deliver PCR-quality results. This allows for more accurate early detection of the virus. Molecular at-home tests are more expensive and require a device at-home.
What is the difference between Antigen and Antibody tests?
  • An antigen test, such as the Flowflex™ COVID-19 Rapid Antigen Test, is used to detect an active COVID-19 infection. It works by looking for proteins on the surface of the virus inside nasal samples.
  • An antibody test, which is usually a blood test, identifies how many antibodies your immune system has produced to fight against COVID-19, due to a previous COVID-19 infection or vaccination. This indicates you may have immunity against COVID-19. However, antibody tests are not suitable for diagnosing an active COVID-19 infection.
For more information on the different kinds of COVID-19 tests, please visit: the FDA website here.
Are there any limitations as to who can use this test?
This test is authorised for non-prescription, home-use for individuals aged 14 and older. If the individual is between 2 to 14 years old, the nasal swab must be performed by an adult.

- Do not use this test on children under 2 years of age.
- Do not use this test on anyone who is prone to nosebleeds.
- Do not use this test on anyone who has had facial injuries, head injuries or surgery in the past six months.
Will the Flowflex™test work if I do not have COVID-19 symptoms?
Yes, the test can also detect asymptomatic COVID-19 cases. If you have any reasons to suspect a COVID-19 infection, you can take this quick test to confirm.

The results of this test may help limit the spread of COVID-19 to your family and others in your community.
Where do you ship and how long does delivery take?
We currently only ship within Hong Kong. Delivery will be made by S.F. express and it takes 3-4 business days (Monday to Saturday (exclude public holidays) from 9.00am to 6.00pm) once your order is confirmed.

Please note: In response to the severe pandemic situation, our delivery partner SF Express will be providing limited services and will not offer door-to-door delivery to all addresses. Orders to limited coverage areas will be automatically routed to the nearest SF Store, and the designated SF address will be directly communicated to customers by SF Express via SMS upon delivery.

Important: To direct your order to your preferred SF location, and for the latest coverage areas and delivery arrangements, visit SF Express page.
Does this test have an expiration date?
The shelf life of the Flowflex™COVID-19 Rapid Antigen Test is 24 months from the manufacturing date on the box.
What is your refund policy?
If you are not satisfied with the Flowflex™ COVID-19 Rapid Antigen Test in regards to its accuracy, a refund will be made - T&C apply