December was the month we upgraded our database infrastructure to support Ring 2's advanced capabilities at scale. We released app version 28.36.0 with custom goals and in-app support tools. We migrated user accounts to a new database architecture designed specifically for Ring 2's data volume. And we introduced self-service troubleshooting features that helped users optimize their experience instantly.

Today we want to share how we enhanced our infrastructure, what features we added to the app, and why these improvements create a better experience for Ring 2 users.

Database Infrastructure Upgrade for Advanced Health Tracking

We built a new database architecture in December designed specifically for Ring 2's capabilities. Ring 2 tracks over 13+ features and 140 metrics continuously. ECG monitoring, detailed sleep stage analysis, continuous stress tracking, and women's health predictions generate significantly more data than any previous smart ring.

The new database system gives each user a dedicated calculation instance. This means one user's data processing never affects another user's sync speed, even during peak usage hours when thousands of people sync simultaneously.

We started testing the enhanced database with a small group of users in early December. The system performed well and maintained stability throughout testing. We refined a few code optimizations before expanding the rollout to ensure smooth data transfers for everyone.

On Friday, December 26, 2025, we began migrating users to the new database gradually. This phased approach lets us monitor each group closely and maintain data integrity throughout the transition.

We migrated historical data in three phases to optimize the process:

• First, when a user's account moved to the new database, their app showed a clean slate temporarily while data transfer began.
• Second, we restored the current month's data. This brought back recent trends and leaderboard positions quickly.
• Third, we imported older historical data to complete each user's health timeline.

This infrastructure upgrade created faster synchronization, greater stability, and the capacity to support millions of users while maintaining the precision that medical-grade health tracking requires.

What App Version 28.36.0 Added

Circular Ring App version 28.36.0 launched in December with features users requested and performance enhancements throughout the system.

Custom Goals

Users can now set personalized daily targets for steps, calories, and cardio points. Instead of generic defaults, users can adjust goals to match their fitness level and daily routines. This makes Ring 2 adapt to each person's lifestyle rather than requiring them to adapt to preset targets.

In-App Support Tool

We added intelligent support features at Left Menu > Settings > Support. When the app detects optimization opportunities, it shows a helpful banner on the Home screen that guides users to the right solution. Users can resolve common issues instantly without searching documentation or contacting support.

Enhanced Synchronization Reliability

We improved synchronization processes throughout the app. These optimizations run invisibly in the background, but they make data transfers more consistent and dependable every day.

Refreshed Breathing Circle Design

The Guided Breathing Circle received a visual update as part of the ongoing interface redesign that started in November. The new design creates a calmer, more elegant experience during breathing sessions.

Android Battery Widget and Background Syncing Development

The Android battery widget now updates automatically in the background. Users can check their ring's battery status from their phone's home screen without opening the app.

We are developing background syncing capabilities for Ring 2. This is a sophisticated feature for smart rings because it requires maintaining efficient Bluetooth communication while optimizing battery life. We are perfecting the Android implementation first, then we will bring the same capability to iOS.

Background syncing will enable automatic data updates without users manually opening the app. User data will stay current continuously, supporting real-time health insights and notifications.

We are also building background notifications for low battery and fully charged states on Android in an upcoming update.

Self-Service Optimization Tools for Users

We created troubleshooting guides and diagnostic tools so users can optimize their Ring 2 experience immediately.

App Optimization After Sync Issues: Users can refresh their ring connection by going to My Ring, choosing Factory Reset, removing the ring from Bluetooth settings, placing it on the charger, and setting it up again in the app. This resolves any data corruption and restores optimal performance.

Sensor Calibration for Accurate Data: Users can calibrate their sensors by opening the app, going to Menu > Settings > Self Diagnostic, and following the guided steps with a white sheet of paper. When all checks turn green, sensor accuracy is optimized.

Sync Timing Optimization: During the database migration period, we recommended syncing once in the morning and once in the evening before bed for optimal results. This helped users maintain complete data coverage during the transition.

Bluetooth Connection Refresh: Users can optimize Bluetooth connectivity by going to My Ring > Manage My Ring, removing the ring, closing the app completely, removing the ring from Bluetooth settings, restarting the phone, and re-pairing the ring in the app.

ECG Signal Quality Improvement: Users can enhance ECG reading quality by ensuring their finger is clean and slightly damp before starting measurements. This simple step improves signal clarity significantly.

These self-service tools empower users to maintain optimal Ring 2 performance instantly. Users can optimize their experience immediately rather than waiting for support responses.

How Infrastructure Quality Enables Advanced Health Features

The database infrastructure upgrade directly enables Ring 2's medical-grade health monitoring capabilities.

We were the first smart ring company to integrate functional ECG and AFib detection. Atrial fibrillation is an irregular and often rapid heart rate. If untreated, it can damage the heart, brain, or other organs. It can lead to stroke or heart failure. Early detection matters. The enhanced database infrastructure ensures continuous, gap-free monitoring that makes early detection possible.

Sleep tracking detects subtle transitions between light sleep, deep sleep, and REM stages. Women's health predictions track temperature shifts as small as 0.1 degrees. Stress monitoring measures continuous heart rate variability. All these features require infrastructure that captures and processes every data point the ring generates.

When Kira AI calculates the Energy Score, it analyzes immune system function, stress levels, sleep quality, and activity recovery. Complete data coverage ensures accurate Energy Scores and relevant recommendations for each user's actual condition.

Vital Alerts monitor heart rate, temperature, blood oxygen, and other metrics continuously. The enhanced database infrastructure enables real-time processing so alerts arrive when users need them, serving their purpose as early warning signals.

This is why we built robust database infrastructure. Health tracking requires precision. When users trust us with their cardiovascular data, their sleep patterns, their reproductive health information, we build systems that honor that trust.

Streamlined Ring Size Exchange Process

We enhanced the size exchange process in December. Users who need a different size after wearing the ring for a few days can now complete exchanges more quickly and easily. The new process requires less effort and less waiting.

What December Accomplished

December demonstrated our ability to execute complex infrastructure upgrades while simultaneously shipping new features and operational improvements.

App version 28.36.0 launched with custom goals, in-app support tools, and synchronization enhancements. The database migration deployed on schedule. The Android battery widget started updating automatically. Self-service optimization tools reduced support queue volume. Background syncing development progressed.

These advances happened simultaneously because different teams work on different aspects of the same mission: making Ring 2 as reliable as the health data it captures.

We send updates every Friday. This transparency maintains trust with our community. When users understand what we are building and why, the progress makes sense. Development takes time, but the results are worth the wait.

Why We Build Infrastructure That Scales

The infrastructure work we completed in December required significant resources and careful execution. Migrating user data in careful phases ensured data integrity. Building in-app optimization tools created better user experiences. Testing the new database with small groups before full rollout guaranteed stability.

Health tracking requires precision engineering. Ring 2 tracks 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 Kira AI. Kira AI translates raw data into actionable insights users can apply to their daily lives.

When users trust us with sensitive health data, infrastructure must be excellent. Database systems must preserve every data point. App updates must enhance stability. Support tools must deliver real solutions.

Ring 2 demonstrates what happens when a health tech company prioritizes long-term reliability and user experience. The 15,000 customers who backed the product did not just buy a ring. They helped us build infrastructure that can scale to millions while maintaining the precision that medical-grade health tracking requires.

Our database infrastructure is stronger. The support tools are smarter. The app is more stable. And we are proving that transparency and technical excellence work together with rapid development and user-focused innovation.

Petit à petit, l'oiseau fait son nid. Little by little, the bird builds its nest. December was another month of building. The foundation is stronger.