When we launched Ring 2, something unexpected happened. We went from a loyal community around Ring 1 to suddenly managing a surge that pushed every system to its limit. Our servers struggled. Support queues grew. Some ring sizes sold out faster than we anticipated.

Today we want to share with our audience the challenges we faced and the solutions that we brought for the community and users.

The Problem With Success

With Ring 1 we introduced innovations that hadn't been seen in smart rings before — changeable outershells, vibrations, SpO2, and VO2 max tracking. Our infrastructure was solid, the data flowed smoothly, and our small support team could personally respond to nearly every customer message. Then Ring 2 arrived with a somewhat unexpected situation that changed everything.

The new ring feels more premium and performs more reliably. It tracks more metrics, more often, and in significantly higher detail than its predecessor. ECG monitoring, advanced sleep stage analysis, real-time stress tracking, and women's health predictions all generate exponentially more data than the original ring ever did. When thousands of users across different time zones synchronized their rings simultaneously, especially during morning peak hours, our servers had to make a choice: reject some requests or crash entirely.

Results?

Some users noticed gaps in their activity intensity graphs. Others saw missing sleep scores or incomplete activity records. The data was safely stored on the ring itself, but the transfer process couldn't keep up with the volume.

How We're Fixing It

Rather than applying temporary patches, our engineering team chose the harder path, ensuring a longer and reliable data syncing.

We're rebuilding the entire infrastructure from the ground up.

We've transitioned to a new architecture where every user has a dedicated calculation instance. Think of it like moving from a shared highway where everyone competes for space to a system where each user has their own lane. One person's activity will never slow down another's. Data synchronizes faster than ever. And most importantly, the system is ready to scale to millions of users without sacrificing the stability that health tracking demands.

We've reinforced existing servers and implemented multiple upgrades to keep the core experience free and functional for everyone.

We're also releasing regular firmware updates that improve reliability and precision, particularly for sleep tracking and sport session monitoring.

This solution for users is surprisingly simple. Syncing once daily, preferably during off-peak hours rather than immediately after waking, helps minimize the risk of data loss. The ring stores more than 24 hours of data safely, so there's no rush.

The Support Challenge

Customer support tells a similar story. During the crowdfunding phase, our team of five to seven specialists could reply personally to almost every message. Today, we're handling approximately 350 conversations per day, working through the queue systematically.

Every message is being reviewed manually, in order, starting from the oldest. We prioritize personal, accurate responses over speed. This approach takes longer, but it reflects something important about how we view our relationship with customers.

Our customers are not mere ticket numbers. They are someone who trusted us with their health data, and therefore need to be treated as such.

Why Ring 2 Is Worth The Wait

Understanding the technical challenges makes the actual capabilities of Ring 2 more impressive. When creating Circular Ring 2 we knew that we are not creating a fitness tracker that counts steps and calls it a day. We wanted to create a complete health monitoring system disguised as a luxury ring.

The ring captures over 13+ features and 140 metrics continuously. Heart rate, blood oxygen, temperature, heart rate variability, activity intensity, sleep stages, stress levels, and movement patterns all feed into our AI system called Kira AI that translates raw data into actionable insights.

What Makes Our Tracking Different

We were the first in the ring world to integrate a functional ECG and AFib detection system, which gives you the same irregular heartbeat monitoring you'd get from medical equipment, but on your finger.

Atrial fibrillation is a type of arrhythmia characterized by irregular and often rapid heart rate. If left untreated, it can damage the heart, brain, or other organs, and potentially lead to stroke or heart failure. Early detection matters, and knowing that so many cases happen just because people were not aware of their health signals or were not informed early, the Ring 2 watches for warning signs 24/7.

Sleep tracking goes beyond "you slept seven hours." The ring monitors your progression through light sleep, deep sleep, and REM stages, tracking cycle lengths, how long it takes you to fall asleep, and how your daily habits influence recovery. Our goal is not just measurement but recommendation, suggesting the best sleep schedule for your unique physiology so you wake up genuinely refreshed. A new firmware update is now live that improves the reliability and precision of this sleep tracking even further. Paired with AFIb and ECG the sleep tracking is also enhanced with data, that pushes it to our AI system.

The Intelligence Layer

Kira AI functions more like a thoughtful guide than a gadget. It takes your vitals and explains them in plain language, pointing out what they mean for your day and suggesting simple steps you can actually follow. With Kira, the advice becomes more personal, showing how your habits and health connect over time.

Our Energy Score evaluates your accumulated vitality for the day, considering immune system function, stress levels, sleep quality, and activity recuperation. A high score means you can tackle intense physical or mental activities with minimal risk of getting sick. A low score is your body asking for rest, signaling weak immune function and warning against overtraining.

Vital Alerts serve as an early warning system, monitoring heart rate, temperature, blood oxygen, and other key metrics continuously and sending gentle notifications when something looks off. Instead of waiting until you feel sick or exhausted, you get advance notice when your body needs attention.

The Physical Design

Ring 2 measures 2.55mm thick, 7.8mm wide, and weighs just 3 grams. It's fully waterproof for daily use in the shower, pool, or rain. The titanium body features a hypoallergenic interior finished with a durable PVD coating that protects against scratches and wear.

Battery life reaches up to eight days in Power Mode or five days in Performance Mode, with wireless charging that takes just 30 minutes. The ring comes with its own sleek charging case that protects, powers, and extends durability without requiring a wall outlet.

There are no lights, no buzzes, no distractions. Just a luxury ring that fits seamlessly into daily life while continuously monitoring your health.

What's Coming Next

The infrastructure upgrades represent just the beginning. We're working on blood pressure and glucose tracking, features that seem almost impossible in such a small form factor but are already in development.

Our app team has released several updates that fix bugs, improve step counting, and enhance stability in your daily experience (check out the article #2).

Behind the scenes, our design team is crafting a fresh new look for 2026. Expect a more elegant and fluid interface to roll out gradually, starting to make its appearance in the next versions of the app.

The Bigger Picture

The technical challenges we faced are the growing pains of a company that refuses to treat health data casually. Building dedicated calculation instances for each user costs more and takes longer than shared infrastructure. Personally answering support tickets takes more time than automated responses. Delaying shipments until quality standards are met loses sales.

But health tracking is not like other consumer products. When someone trusts you with their cardiovascular data, their sleep patterns, their reproductive health information, you don't get to cut corners.

Ring 2 represents what happens when a health tech company prioritizes accuracy over growth, personal support over efficiency, and long-term infrastructure over short-term convenience. The 15,000 customers who backed the product didn't just buy a ring. They helped build a system that could scale to millions while maintaining the precision that medical-grade health tracking demands.

Our servers are getting stronger. The support queue is getting shorter. The features are getting sharper. And through it all, we're proving that transparency and quality can coexist with innovation and growth.