Free shipping and returns

Ring Specifications

App Support

Android 5.0 and above, IOS 10.0 and above.

Hardware Specification
  • Infrared photoplethysmography sensors (PPG) for heart rate and respiration
  • Negative temperature coefficient (NTC) sensor for body temperature
  • 3D accelerometer for movement
  • Ultra low power Bluetooth chip (BLE 5.0)



Width 8.00mm; Thickness 2.85/2.9mm

OTA Support

Support OTA via Bluetooth


Rechargeable 14.5-21.5mAh depending on the ring size.

Lipo battery



165Feet (50 meters) - can withstand showers, washing, swimming pools and snorkeling but definitely not meant for scuba diving.

Data Memory

15 Days- This means that your ring can continue to collect data without syncing to your device for up to 15 days.

Revolutionizing Daily Life

Were innovation meets daily life through the seamless integration of technology. At the heart of our endeavors lies a simple, yet profound mission and a vision that aims to revolutionize how we interact with the world around us.

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Say Good-bye to Smartwatches!

Our smart rings are easy to wear 24 hours a day, 7 days a week. They are the most precise and ideal replacement for a smart watch when it comes to sleep monitoring and vital sign monitoring. Our smart rings are equipped with powerful sensors and supported by exceptional technology, making them the most comfortable way to monitor your sleep, your heart rate, your sp02, your HRV, your stress, your blood glucose, your exercise objectives and your menstrual cycle.


Health smart rings are revolutionizing the way we monitor and improve our well being. With advanced tracking features, personalized insights, and a stylish design, these wearables are essential tools for anyone looking to enhance their health. Explore the wide range of health smart rings at and take the first step towards a healthier, and more informed lifestyle.


Please read our FAQs page to find out more.

What is the sizing kit process?

We will send you a free sizing kit when you place your order. We recommend using it to determine your ring size, since a properly fitting ring will result in the highest possible data accuracy, comfort, and overall experience with us.

What’s the average shipping timeline?

If you are purchasing a smart ring for the first time going through our sizing kit process ensures you'll find your best possible fit. Sizing kits are delivered within 14 business days after an order confirmation. If you know your ring size, you can select your size directly from the menu and once you have confirmed your size, your order may take up to 14 business days to be delivered. Once your order officially ships, you'll receive an email from our team with tracking details.

Does we offer expedited shipping?

Expedited shipping is not currently available. We apologize for any inconvenience.

Which delivery carriers does we use?

Depending on location we use DHL, UPS, FedEx and USPS to deliver. To locate the carrier on your order, please reference the shipping confirmation email you received. Your carrier and tracking number will be provided in an email.

What if I don't have a tracking number?

We highly recommend that when returning your smart ring, you purchase tracking services for your protection and to save the shipping receipt for your records. Your return can't be processed until it's been received and checked in at our facilities. In case your return happens to get lost or delayed in transit, having tracking services on your package can help mitigate this scenario. If you don't have a tracking number to share with our team, we'll still be able to process your return once it's been received and checked in; however, it may take slightly longer to receive your full refund as a result.

Standard shipping fees applied at checkout are?
  • Canada: FREE
  • EU: FREE
  • US : FREE
  • Rest of the world: FREE

Depending on the country orders may require additional duties or import fees all of which are outside of control. We recommend that you reach out to the local carrier office for more information on these charges. Also please check your local government or tax commission’s website for more information on applicable, additional charges.

How do I track my order?

After placing your order, you’ll receive a confirmation email from us with your order details. When your order ships, you’ll receive a separate shipping confirmation email with your tracking details. It may take up to 24 hours for the carrier to update your tracking information, so please keep this in mind if it doesn’t appear right away. If you don't receive an order confirmation email from us following your purchase, or if you have trouble contacting the carrier to resolve tracking or delivery issues please contact our team.

Which devices and operating systems (OS) are the smart rings compatible with?

Smart rings are supported on iOS devices running Apple iOS 15 and higher, or Android devices running Android 8.0 and higher with Google Play services. Your device must support Bluetooth 4.0.

Does we deliver to PO boxes?

We delivers to PO boxes in the United States. Expedited shipping is not available to PO boxes. cannot deliver to PO boxes located outside of the United States at this time.

Countries we ships to?

The list below contains countries where we currently ship.
Please note that our shipping list is subject to change.
• Afghanistan
• Albania
• Algeria
• Andorra
• Angola
• Antigua and Barbuda
• Argentina
• Armenia
• Australia
• Austria
• Azerbaijan
• The Bahamas
• Bahrain
• Bangladesh
• Barbados
• Belarus
• Belgium
• Belize
• Benin
• Bhutan
• Bolivia
• Bosnia and Herzegovina
• Botswana
• Brazil
• Brunei
• Bulgaria
• Burkina Faso
• Burundi
• Cabo Verde
• Cambodia
• Cameroon
• Canada
• Central African Republic
• Chad
• Chile
• China
• Colombia
• Comoros
• Congo, Democratic Republic of the
• Congo, Republic of the
• Costa Rica
• Côte d’Ivoire
• Croatia
• Cuba
• Cyprus
• Czech Republic
• Denmark
• Djibouti
• Dominica
• Dominican Republic
• East Timor (Timor-Leste)
• Ecuador
• Egypt
• El Salvador
• Equatorial Guinea
• Eritrea
• Estonia
• Eswatini
• Ethiopia
• Fiji
• Finland
• France
• Gabon
• The Gambia
• Georgia
• Germany
• Ghana
• Greece
• Grenada
• Guatemala
• Guinea
• Guinea-Bissau
• Guyana
• Haiti
• Honduras
• Hungary
• Iceland
• India
• Indonesia
• Iran
• Iraq
• Ireland
• Israel
• Italy
• Jamaica
• Japan
• Jordan
• Kazakhstan
• Kenya
• Kiribati
• Korea, North
• Korea, South
• Kosovo
• Kuwait
• Kyrgyzstan
• Laos
• Latvia
• Lebanon
• Lesotho
• Liberia
• Libya
• Liechtenstein
• Lithuania
• Luxembourg
• Madagascar
• Malawi
• Malaysia
• Maldives
• Mali
• Malta
• Marshall Islands
• Mauritania
• Mauritius
• Mexico
• Micronesia
• Moldova
• Monaco
• Mongolia
• Montenegro
• Morocco
• Mozambique
• Myanmar (Burma)
• Namibia
• Nauru
• Nepal
• Netherlands
• New Zealand
• Nicaragua
• Niger
• Nigeria
• North Macedonia
• Norway
• Oman
• Pakistan
• Palau
• Panama
• Papua New Guinea
• Paraguay
• Peru
• Philippines
• Poland
• Portugal
• Qatar
• Romania
• Russia
• Rwanda
• Saint Kitts and Nevis
• Saint Lucia
• Saint Vincent and the Grenadines
• Samoa
• San Marino
• Sao Tome and Principe
• Saudi Arabia
• Senegal
• Serbia
• Seychelles
• Sierra Leone
• Singapore
• Slovakia
• Slovenia
• Solomon Islands
• Somalia
• South Africa
• Spain
• Sri Lanka
• Sudan
• Sudan, South
• Suriname
• Sweden
• Switzerland
• Syria
• Taiwan
• Tajikistan
• Tanzania
• Thailand
• Togo
• Tonga
• Trinidad and Tobago
• Tunisia
• Turkey
• Turkmenistan
• Tuvalu
• Uganda
• Ukraine
• United Arab Emirates
• United Kingdom
• United States
• Uruguay
• Uzbekistan
• Vanuatu
• Vatican City
• Venezuela
• Vietnam
• Yemen
• Zambia
• Zimbabwe
*Orders shipped to these countries may be subject to additional import and handling fees not included in the checkout, as determined by customs in the destination country. The carrier, in some instances, may act as the customs broker and will require payment before the delivery arrives.

Can Just Careful detect COVID-19?

The Just Careful Ring is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses. Please do not make any changes to your medication, daily routines, nutrition, sleep schedule, or workouts without first consulting your doctor or another medical professional.

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