Your Health. Right at Your Fingertips.

Sleep. Activity. Heart Rate. Wellness Insights. One smart ring designed to help you understand your body — day and night.

SMARTER HEALTH INSIGHTS

Smarter Insights. Effortlessly.

Everything you need to better understand your body — right on your finger.

Sleep Tracking

Understand your sleep patterns and nightly trends for a clearer view of your rest and recovery.

Heart Rate & HRV

Follow heart rate and HRV trends throughout your day and gain deeper wellness insights.

Activity Tracking

Keep track of steps, calories and daily movement while staying connected to your active lifestyle.

Stress Insights

See how your body responds to everyday stress and understand your recovery trends over time.

Know Your Body Better

One ring. Meaningful insights into your sleep, activity and everyday wellness.
FIND YOUR PERFECT FIT

The Right Fit Makes All the Difference.

Smart rings work best when they fit securely and comfortably. Take a moment to measure your finger before ordering.

STEP 01

Measure Your Finger

Wrap a thin strip of paper or non-stretch string around your finger. Mark the overlap point and measure the length.

STEP 02

Check Our Size Guide

Compare your measurement with our ring size chart and find the matching inner diameter.

STEP 03

Choose Your Perfect Fit

Select a size that feels secure without being too tight. A proper fit helps maintain comfortable sensor contact.

Smart Ring Size Chart
Ring Size
Inner Diameter
Finger Circumference
#7
17.3 mm / 0.68 in
54.3 mm / 2.14 in
#8
18.1 mm / 0.71 in
56.9 mm / 2.24 in
#9
18.9 mm / 0.74 in
59.5 mm / 2.34 in
#10
19.8 mm / 0.78 in
62.1 mm / 2.44 in
#11
20.6 mm / 0.81 in
64.6 mm / 2.54 in
#12
21.4 mm / 0.84 in
67.2 mm / 2.65 in
#13
22.2 mm / 0.87 in
69.7 mm / 2.74 in
⚠️ Please Measure Before Ordering
Smart rings are size-sensitive. Choosing the correct size helps ensure comfort, accurate sensor contact, and a better experience.

Sizing Tip: If you are between sizes, choose the larger size for a more comfortable fit.

Top Reviews

Amazing ring!
So many functions. The sleep tracking is great. Great price and fast shipping. Recommend.
Verified Purchase ✓Wednesday, Jan 26, 2019
Amazing ring! So many functions. The sleep tracking is great. Great price and fast shipping. Recommend.
Love this ring
Verified Purchase ✓Wednesday, Jan 26, 2026
Love this better than wearing the Fitbit bracelet. The ring is perfect!
WHY PRIMEHUB

Designed For Smarter Health Decisions

More than a smart ring. PrimeHub helps you understand your body, track your wellness, and make better daily choices.

Advanced Health Tracking

Monitor heart rate, HRV, sleep, activity, stress and wellness insights throughout your day.

Smart Sensor Technology

Built with advanced sensors designed to deliver continuous and meaningful health data.

Premium Design

A sleek lightweight design that combines technology with everyday comfort and style.

Reliable Support

Dedicated customer support and worry-free service before and after your purchase.

30-Day Risk-Free Trial
1-Year Product Warranty
Fast US Customer Support
Secure Checkout
FAQ

Frequently Asked Questions

Everything you need to know before choosing your PrimeHub Smart Ring.

PrimeHub Smart Ring works with our dedicated mobile app. Simply download the app, connect your ring via Bluetooth, and start tracking your health data anytime.
Smart ring sizing is very important. Please measure your finger circumference before ordering and compare it with our size chart. A proper fit ensures comfortable wearing and better sensor contact.
The smart ring provides health insights and trends through advanced sensors and the companion app. Please note that this device is designed for wellness tracking and is not a medical device.
Yes. PrimeHub Smart Ring is designed for everyday activities, including hand washing, workouts, and daily use. We recommend avoiding prolonged exposure to hot water, saunas, or extreme environments.
Battery life depends on usage patterns and monitoring settings. Most users can enjoy several days of everyday tracking before needing to recharge.
Orders are processed quickly after purchase. Shipping times vary depending on destination. Tracking information will be provided once your order ships.
We offer a 30-day money-back guarantee and 1-year warranty support. If you experience any issues, our customer support team will be happy to assist you.