Ultrahuman sent me a surprise. Is it the Ultrahuman Gen 2?

It is not, but...

🔥 Best Smart Ring Deals for Prime Day 2025 (U.S. Only)

Amazon Prime Day is here – and this year brings serious discounts on top smart rings. Whether you’re tracking sleep, recovery, or just want powerful health insights on your finger, here are the hottest deals (U.S. only).

⏰ Garmin finally wakes you up smartly! Does it work?

Garmin Fenix 8 finally brings smart wake-up! I compare the new Smart Wake feature with the Oura ring, EEG, and older Garmin models. Does it really help reduce sleep inertia? I also revisit a 2018 email where I dreamed of this very feature.

Whoop 5.0 / MG – The Good, the Bad, and the Ugly (First Impressions)

Whoop 5.0 is here—smaller (?), more powerful (?), and up to 14 days of battery life. This article offers a fair and honest breakdown of what works, what the company got wrong, and where the new model still overpromises and underdelivers. Step tracking, comparison with the Whoop 4.0 included.

Ultrahuman Sprint '25 – A Solid Load of New Features for Your Smart Ring 💍

During its Summer Release Sprint '25, Ultrahuman unveiled a range of new features, improvements, and products within its wearable ecosystem. According to the official blog, it was a week of intense cross-team collaboration focused on “redefining what’s possible.” So—did they manage to redefine it?

🔔 15% Off Ultrahuman Ring AIR – Anniversary Sale (Ends June 30)

To celebrate the 2-year anniversary of the Ultrahuman Ring, there’s now a 15% discount available until June 30, 2025.

🏠 Ultrahuman Home – The Ideal Companion for the 💍 Ultrahuman Air Smart Ring? [Review]

Ultrahuman Home is a smart device designed to monitor indoor environmental quality. It measures CO₂, dust, noise, and light, and works in synergy with the Ultrahuman Air ring. In this article, I share my testing experience and real-life examples of using it at home.

Best Smart Ring: The Sick Test 🤒

Which smart ring detects illness the best? During a week with the flu, I tracked how different rings (Oura, RingConn, Ultrahuman…) and other wearables (Whoop, Garmin Fenix 8, Apple Watch Ultra, Elonga) responded. Which devices gave an early warning — and which ones failed?

Whoop 5.0 Disappointment: No Free Upgrade and Controversial New Membership Model

Whoop 5.0 Is Here – Smaller, More Powerful, and With Up to 14 Days of Battery Life. But the New Membership Model Divides the Community. What does the MG model with an ECG sensor bring to the table? And why are some users disappointed by the broken promise of a “free upgrade”?

🏠 I Unboxed the Ultrahuman Home – First Impressions of This Smart Environmental Tracker!

The official launch is set for May 6th, but we’re already putting it through its paces. The Home is part of the Ultrahuman ecosystem alongside the Ultrahuman Air smart ring — together, they provide valuable insights into how your environment affects your sleep, recovery, and overall well-being.

Hands-On with 4 New Smart Rings – Raw First Impressions

First impressions of four new smart rings: Mirror Ring, Tesla Ring, VIV Ring, and the SR08 with a display. No script, no fluff—just honest thoughts straight from the desk. What surprised me, what let me down, and what might actually be worth your attention?

Circular 2 – Hype or Hope?

Circular 2 promises ECG, ovulation tracking, and blood pressure monitoring – all without a subscription. Sounds great, but what’s real and what’s just hype? I share my experience and why the ring's vibrations aren’t just a small detail.

🏆 Best smart ring

Best Smart Ring: STEPS 👣

Which smart ring tracks steps the most accurately? I spent a week using the StepWatch 5 ankle device as a reference to compare the step-tracking accuracy of the best smart rings and other popular wearables. How did favorites like Oura, Ultrahuman, RingConn, Whoop, and Garmin perform?

🏆 Best smart ring

Best Smart Ring: SLEEP 💤

Which smart ring measures sleep best? I spent a night in a sleep lab to compare the sleep tracking accuracy of the top models against the gold standard—polysomnography (PSG). How did Oura, Samsung, Ultrahuman, and others perform? The results might surprise you!

💍 RingConn Smart Ring

RingConn Gen 2 Air – Is This the Best Budget Smart Ring?

RingConn has launched a budget-friendly version of its smart ring—the Gen 2 Air. I tested it for a month, focusing on key features, battery life, and pricing. This review compares it with the premium Gen 2 to help you decide which one suits you best.

💍Circular Smart Rings

How did I fix three Circular rings at once.

Let me share a strange experience. Maybe you've heard rumors about defects and poor customer service from Circular. Well, I faced a critical issue—Error ES02: Upload Error. Luckily, I had a second Circular Slim for testing. Then things got even stranger!

smart ring

CES 2025 & Smart Rings

CES (Consumer Electronics Show) is an annual showcase of technological innovations. Each year, we can see more and more representatives of smart rings. So, what stood out to me this year?

💍Ultrahuman AIR

Ultrahuman Ring: How Does Its Smart Alarm Work?

A highly requested feature is here! Ultrahuman has introduced the long-awaited smart alarm functionality. It promises comfort, a scientific approach to sleep, and an improved morning routine. How does it work, what does it offer, and how does it compare to other devices?

Samsung Galaxy Ring

Samsung Galaxy Ring – Too Expensive? How to Set It Up on iPhone? First Impressions!

Samsung Galaxy Ring: First, Second, and Third Impressions After Weeks of Use. A Luxury Charging Case but a Plastic Ring? Or Not? And How to "Use" It If You Have an iPhone?

steps accuracy

Smart Ring Oura Gen 4 vs. Smart Watch Garmin Fenix 8: Step Tracking Accuracy 🚶

Garmin's top-tier watch, the new Fenix 8, vs. the scientific step-tracking device Modus StepWatch 5 vs smart ring Oura Gen 4.

smart ring

😴 Polysomnography & Smart Rings 💍: A Sneak Peek for the Impatient

I’ve received plenty of messages asking about the results from the sleep lab and how the various smart rings performed. Unfortunately, I still don’t have the official results, but I do have some basic data to share for those interested. Here's a quick overview!

black friday

💍Smart rings & 🏷️ Black Friday 2024

The holidays of capitalism 🎉, Black Friday and its counterparts (Cyber Monday, Christmas?), are here! And if I put aside the often overwhelming aftertaste of consumerist marketing, I have to admit it's a chance to save some money. Maybe even on a new smart ring.

💍Oura Ring Gen 3 & 4

Tracking the Menstrual Cycle: Oura Ring & Natural Cycles

A long-term experience with the Oura Ring Gen3 from a woman’s perspective. How can you track the menstrual cycle with a smart ring, and why is it beneficial?

Oura4

Oura 4 vs. Oura 3: Is It Worth Upgrading?

For one week, I wore both the older Oura Ring Generation 3 and the new Oura Ring Generation 4. Are there any differences in the app's outputs, and is it worth upgrading?