# LordOfTheSmartRings
> All the smart rings in one place and in context. Tests, reviews, answers, discounts, etc.
Public Ghost content for AI and LLM tooling. Use `/llms-full.txt` for consolidated page and post context.
Append `.md` to any post or page URL to get the content in Markdown (for example, `/example-post.md`).

## Pages
- [About this site](https://www.lordofthesmartrings.com/about.md) - LordOfTheSmartRings is an independent publication launched in April 2024 by LORDoftheSMARTRINGS. If you subscribe today, you'll get full access to the website as well as email newsletters about new content when it's available. Your subscription makes this site possible, and allows LordOfTheSmartRin…
- [🥇Best SMART RING 💍- Ultimate Selector](https://www.lordofthesmartrings.com/best-smart-ring-selector.md)
- [📬 Contact](https://www.lordofthesmartrings.com/contact.md) - Send me message Submit Form
- [Elonga discount code FITNESATOR10 – 10% off (verified 2026)](https://www.lordofthesmartrings.com/elonga-discount-code.md) - Verified Elonga discount code FITNESATOR10 for 10% off (April 2026). Works on the Elonga sensor + membership. From a biohacker with 2+ years of real-world testing.
- [Privacy policy](https://www.lordofthesmartrings.com/privacy-policy.md) - Last updated: November 19, 2024 This Privacy Policy describes Our policies and procedures on the collection, use and disclosure of Your information when You use the Service and tells You about Your privacy rights and how the law protects You. We use Your Personal data to provide and improve the Ser…
- [🏷️ Discount codes – Smart Rings 💍](https://www.lordofthesmartrings.com/smartringsdiscountcodes.md) - Looking for the best smart ring deals? Explore exclusive discount codes for Oura Ring, Ultrahuman AIR, Circular Ring, and RingConn. Save big on your next smart ring purchase and take your biohacking to the next level!
- [Ultrahuman Home Discount Code 2026 (verified: FITNESATOR)](https://www.lordofthesmartrings.com/ultrahuman-home-discount-code.md) - Verified Ultrahuman Home discount code FITNESATOR for 10% off (~$494 instead of $549). Environmental monitor for the Ultrahuman ecosystem. Tested personally. Verified May 2026.
- [Ultrahuman Ring AIR Discount Code 2026 (verified: FITNESATOR)](https://www.lordofthesmartrings.com/ultrahuman-ring-air-discount-code.md) - Verified Ultrahuman Ring AIR discount code FITNESATOR for 10% off (~$315). Works on Ring AIR at ultrahuman.com. From a tester with 3+ years of Ultrahuman data.
- [Ultrahuman Ring PRO Discount Code 2026 (verified: FITNESATOR10)](https://www.lordofthesmartrings.com/ultrahuman-ring-pro-discount-code.md) - Verified Ultrahuman Ring PRO discount code FITNESATOR10 for 10% off (~$431 instead of $479). Works on Ring PRO at ultrahuman.com. From a smart ring tester with 3+ years of Ultrahuman data.

## Posts
- [Ultrahuman Ring PRO Review: New ring and new app!](https://www.lordofthesmartrings.com/ultrahuman-ring-pro-review-emerald-app.md) - The Ultrahuman Ring PRO goes the opposite way to the rest of the market: it got bigger. I measured all three Ultrahuman generations with a caliper, ran an 11-day battery test against Oura 5 and RingConn Gen 3, and spent three weeks in the rebuilt Emerald app.
- [Oura 5 vs Oura 4: Is It Worth the Price?](https://www.lordofthesmartrings.com/oura-ring-5-review-first-impressions-comparison-gen-4-gen-3.md) - Detailed comparison of size, weight, and battery of Oura Ring 5. See how the radical miniaturization turned out — and whether the upgrade is worth it.
- [Oura Ring 5 Is Alive and WOW!](https://www.lordofthesmartrings.com/oura-ring-5-first-impressions.md) - Oura just surprised the market, dropping the Oura Ring 5 just 20 months after Gen 4. The latest iteration boasts a 40% smaller form factor, sharper tracking, and fresh app features—though thankfully, you won't miss out on the software upgrades even if you stick with an older model.
- [RingConn Gen 3 - Vibrating, Still Compact, "Blood-Pressure"-Indicating... Perfect?](https://www.lordofthesmartrings.com/ringconn-gen-3-review.md) - After testing every generation, I’m diving into the brand new RingConn Gen 3. With groundbreaking vascular trends, a built-in haptic motor, and a sleek new matte finish, this dark horse of the smart ring market continues to deliver premium hardware with zero subscription fees.
- [Wearables & Age metrics](https://www.lordofthesmartrings.com/wearable-biological-age-comparison-guide.md) - Six wearables, six different ages. From Garmin's Fitness Age to Oura's Cardiovascular metrics, we break down the algorithms, proxy data, and clinical accuracy of the world's leading smart devices. Stop guessing and start understanding your physiological trends.
- [💓 Elonga Review: 2+ Years with the Wearable That Only Asks for 3 Minutes of Your Morning](https://www.lordofthesmartrings.com/elonga-review-hrv-sensor.md) - No GPS. No screen. No steps tracking. No notifications. And still — after two years of testing every smart ring and screenless band I can get my hands on — it's one of the most interesting wearable I've come across. Let me explain.
- [Wearables & Sauna](https://www.lordofthesmartrings.com/wearables-sauna-test-oura-garmin-whoop.md) - Is wearing wearables in a sauna like bringing sand to the beach? Not quite. Sand won’t exceed its operating limits. I took the Garmin Fenix 8, Whoop MG, and Oura Ring 4 into three ~100 °C sauna sessions. What did they measure—and does wearing them in a sauna make any sense?
- [💍 Ultrahuman Ring PRO Announced: First Impressions, Price, Discount Code, and What We Still Don’t Know](https://www.lordofthesmartrings.com/ultrahuman-ring-pro-price-discount-code-and-what-we-still-dont-know.md) - On February 27, 2026, Ultrahuman unveiled the Ultrahuman Ring PRO – the third generation of its smart ring. It promises up to 15 days of battery life, new hardware, and a PRO Charging Case included in the box. What do we know, what don’t we know yet, and is upgrading from the Air worth it?
- [Oura Symptom Radar — Am I Getting Sick? And What Actually Helps?](https://www.lordofthesmartrings.com/oura-symptom-radar-am-i-getting-sick-and-what-actually-helps.md) - I hate being sick — so I’m testing whether smart rings can detect an approaching viral infection earlier than my own symptoms. I looked at Oura’s Symptom Radar, compared the data, and used SciSpace to separate science-based interventions from “I heard it from someone.” Which habits actually work?
- [Elonga, Amazfit, Polar a Whoop – which one is the most accurate?](https://www.lordofthesmartrings.com/elonga-amazfit-polar-a-whoop-which-one-is-the-most-accurate.md) - In this article, I compare optical heart rate measurement in screenless bands from Elonga, WHOOP, Polar, and Amazfit against a chest strap with ECG-level accuracy. Same exertion, same methodology, same conditions. Or are they? And is it even possible to simulate the same conditions?
- [Ultrahuman Home & Air – What’s New](https://www.lordofthesmartrings.com/ultrahuman-home-air-whats-new.md) - Ultrahuman is trying to connect bedroom environment data (like CO₂, noise, and light levels) with biometrics from the Air smart ring. The new Ambient Sleep Score aims to highlight how your sleep might be affected by your surroundings — though its interpretation still has some rough edges.
- [🎄 Christmas 2025: Smart rings deals](https://www.lordofthesmartrings.com/christmas-2025-smart-rings-deals-ultrahuman-ringconn-amazfit.md) - Let’s be honest. Most “Christmas deals” are recycled Black Friday leftovers. But you still get some nice deals.
- [RingConn – can it tell when I’ve got a headache? New app updates!](https://www.lordofthesmartrings.com/ringconn-gen2-new-app-updates-3-13.md) - Great battery life, unique sleep-apnea detection, compact design — that’s the RingConn Gen 2. And now the app has landed a very welcome update in version 3.13. VO₂ Max tracking, a new “Health Trends” view… and one big question: can the optical sensors really help track your circadian rhythm?
- [Best Smart Ring: AI 🤖](https://www.lordofthesmartrings.com/best-smart-ring-ai.md) - AI is becoming a big part of our lives and has now reached smart rings too. In this article, I compare 9 devices – from Whoop and Oura to Amazfit Helio – and their AI features like chatbots, personalized tips, or blood test analysis. Is there potential?
- [🔥 Black Friday 2025: Best Smart Ring & Wearable Deals](https://www.lordofthesmartrings.com/black-friday-2025-best-smart-ring-wearable-deals.md) - If you’ve ever been tempted to buy a smart ring, now’s the perfect time. I haven’t seen smart rings go on sale like this before. Seriously.
- [Ultrahuman Ring PRO – What to Expect from the Next-Gen Smart Ring](https://www.lordofthesmartrings.com/ultrahuman-ring-pro-what-to-expect-from-the-next-gen-smart-ring.md) - Ultrahuman has confirmed a new generation of its smart ring called the Ultrahuman Ring Pro. The trademark is already registered. It may bring NFC payments, new sensors, and a redesigned look.
- [Job interview vs. Oura, Garmin and Whoop? And what about the Limitless Pendant?](https://www.lordofthesmartrings.com/job-interview-vs-oura-garmin-and-whoop-limitless-pendant-stress.md) - I arrived at the interview wearing my wearables – Garmin, Whoop, Oura, and the AI pendant Limitless. All detected stress, each differently. The highest peak? Garmin: 99/100 right in the middle of the talk. Which one told the truth? And what does the LLM say?
- [📦 Omni Ring Unboxing – The Slimmest Smart Ring Ever?](https://www.lordofthesmartrings.com/omni-ring-unboxing-the-slimmest-smart-ring-ever.md) - Omni Ring enters the smart ring market with a focus on AI and nutritional guidance. It promises a unique Energy QI metric similar to Garmin’s Body Battery, a charging case, and one month of premium subscription. But how does it compare to the holy trinity — Oura, Ultrahuman, and RingConn? Let’s see!
- [Whoop 5 / MG – is it worth the money? [Review]](https://www.lordofthesmartrings.com/whoop-5-mg-is-it-worth-the-money-review.md) - A slightly different take on a review of the screenless fitness tracker Whoop. What drew me to it, and what put me off? What turned out to be true, and what’s just empty marketing wrapped in Cristiano Ronaldo? Heads-up: this is going to be a long review — but I believe it's worth your time.
- [📦 Circular Ring 2 Unboxing – The Most Controversial Smart Ring?](https://www.lordofthesmartrings.com/circular-ring-2-unboxing-review.md) - Circular is back with the Ring 2 – a sleek smart ring packed with features and no subscription. But without the signature vibration motor and with reused hardware, can they really win back trust after a rocky start? Watch the unboxing and early thoughts.
- [Nova Smart Ring R Review: Stylish, but Is It Smart Enough?](https://www.lordofthesmartrings.com/nova-smart-ring-r-review-stylish-but-is-it-smart-enough.md) - Nova Ring R is a surprisingly solid budget smart ring. It tracks basic metrics — with decent hardware and minimalist design. A great entry point for anyone curious about smart rings without breaking the bank.
- [Smart boxers: what do they measure, how do they work, and what are they for? Test!](https://www.lordofthesmartrings.com/smart-boxers-whoop-body-boxers.md) - Who wouldn’t want smart boxers that wash themselves when needed, cool you down in summer, and keep you warm in winter? Well, that’s not what we’re talking about today. Whoops.
- [Muse One Ring – The Wait Is Over: Unboxing and First Test](https://www.lordofthesmartrings.com/muse-one-ring-the-wait-is-over-unboxing-and-first-test.md) - For many, the Muse One Ring was already written off. Every now and then I spotted a cry of “scam!” in the communities, but otherwise it was almost forgotten. And yet — here it is. The question is: how does it look, what can it already (not) do, and what remains a promise?
- [Ultrahuman sent me a surprise. Is it the Ultrahuman Gen 2?](https://www.lordofthesmartrings.com/ultrahuman-sent-me-a-surprise-is-it-the-ultrahuman-gen-2.md) - It is not, but...
- [🔥 Best Smart Ring Deals for Prime Day 2025 (U.S. Only)](https://www.lordofthesmartrings.com/best-smart-ring-deals-for-prime-day-2025.md) - 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?](https://www.lordofthesmartrings.com/garmin-fenix-smart-wake-does-it-work.md) - 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)](https://www.lordofthesmartrings.com/whoop-5-0-mg-the-good-the-bad-and-the-ugly-first-impressions.md) - 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 💍](https://www.lordofthesmartrings.com/ultrahuman-air-new-features-sprint.md) - 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?
- [🏠 Ultrahuman Home – The Ideal Companion for the 💍 Ultrahuman Air Smart Ring? [Review]](https://www.lordofthesmartrings.com/ultrahuman-home-review-smart-ring-air.md) - 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 🤒](https://www.lordofthesmartrings.com/best-smart-ring-the-sick-test.md) - 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](https://www.lordofthesmartrings.com/whoop-5-0-disappointment-no-free-upgrade-and-controversial-new-membership-model.md) - 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!](https://www.lordofthesmartrings.com/ultrahuman-home-unboxing-first-impressions.md) - 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](https://www.lordofthesmartrings.com/4-new-smart-rings-first-impressions.md) - 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?](https://www.lordofthesmartrings.com/circular-2-hype-or-hope.md) - 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: STEPS 👣](https://www.lordofthesmartrings.com/best-smart-ring-steps.md) - 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: SLEEP 💤](https://www.lordofthesmartrings.com/best-smart-ring-for-sleep.md) - 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 Gen 2 Air – Is This the Best Budget Smart Ring?](https://www.lordofthesmartrings.com/best-budget-smart-ring-ringconn-gen2-air-review.md) - 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.
- [How did I fix three Circular rings at once.](https://www.lordofthesmartrings.com/how-did-i-fix-three-circular-rings-at-once.md) - 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!
- [CES 2025 & Smart Rings](https://www.lordofthesmartrings.com/ces-2025-smart-rings.md) - 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 Ring: How Does Its Smart Alarm Work?](https://www.lordofthesmartrings.com/ultrahuman-ring-how-does-its-smart-alarm-work.md) - 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 – Too Expensive? How to Set It Up on iPhone? First Impressions!](https://www.lordofthesmartrings.com/samsung-galaxy-ring-how-to-set-it-up-on-iphone-first-impressions.md) - 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?
- [Smart Ring Oura Gen 4 vs. Smart Watch Garmin Fenix 8: Step Tracking Accuracy 🚶](https://www.lordofthesmartrings.com/smart-ring-oura-gen-4-vs-smart-watch-garmin-fenix-8-step-tracking-accuracy.md) - Garmin's top-tier watch, the new Fenix 8, vs. the scientific step-tracking device Modus StepWatch 5 vs smart ring Oura Gen 4.
- [😴 Polysomnography & Smart Rings 💍: A Sneak Peek for the Impatient](https://www.lordofthesmartrings.com/polysomnography-smart-rings-a-sneak-peek-for-the-impatient.md) - 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!
- [💍Smart rings & 🏷️ Black Friday 2024](https://www.lordofthesmartrings.com/smart-rings-black-friday-2024.md) - 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.
- [Tracking the Menstrual Cycle: Oura Ring & Natural Cycles](https://www.lordofthesmartrings.com/tracking-the-menstrual-cycle-oura-ring-natural-cycles.md) - 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?
- [Oura 4 vs. Oura 3: Is It Worth Upgrading?](https://www.lordofthesmartrings.com/oura-4-vs-oura-3-is-it-worth-upgrading.md) - 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?
- [How I Achieved Exceptional 🌟in Oura Resilience](https://www.lordofthesmartrings.com/how-i-achieved-exceptional-in-oura-resilience.md) - For the first time, Oura has rated my resilience with the highest score. How did I achieve this? And what do other smart rings have to say about it?
- [A month with RingConn Gen2 – a reliable minimalistic ring for a good price. 2 weeks left until the end of the campaign 😱](https://www.lordofthesmartrings.com/month-with-ringconn-gen2-review.md) - I've been using the RingConn Gen2 smart ring for a month. With its compact design and impressive battery life, it's a strong contender in the smart ring market. Read on to see how it compares to other options!
- [Circular Slim v2024 - the world's most discreet alarm clock!](https://www.lordofthesmartrings.com/circular-slim-v2024-review.md) - The latest version of Circular SLIM. What's new since the last version? What do I like and what don't I like?
- [💍RingConn Gen2 – great deal! 💰](https://www.lordofthesmartrings.com/ringconn-gen2-great-deal.md) - First impressions from exclusive testing of the second generation RingConn smart ring. RingConn is currently available for a very good price on Kickstarter.
- [Ultrahuman Powerplugs 🔌 - what is it? Are we gonna pay subscription? 😱](https://www.lordofthesmartrings.com/ultrahuman-powerplugs-what-is-it-are-we-gonna-pay-subscription.md) - Ultrahuman Air smart ring and app subscription? Or not? And what is UltraSignal & Powerplugs? We're the last to know, but we do know for sure.
- [My year with Ultrahuman AIR + 🎁Anniversary campaign](https://www.lordofthesmartrings.com/one-year-with-ultrahuman-air-anniversary-campaign.md) - For one year, I wore the Ultrahuman AIR. What is the experience like? And what extra benefits can you get in the Ultrahuman anniversary promotion?
- [7 Smart Rings - Unique Comparison](https://www.lordofthesmartrings.com/7-smart-rings-unique-comparison.md) - Seven rings and two hands. A unique comparison of smart rings. Cycling, sleep, daily insights and more!
- [New product Ultrahuman - 🏠 Home - Expectations](https://www.lordofthesmartrings.com/ultrahuman-home-expectations.md) - Ultrahuman has just launched a new campaign new device called Home. What can we expect?
- [💍 RINGO RING - Expectations](https://www.lordofthesmartrings.com/ringo-ring-expectations.md) - Let's take a look at what we know about the new smart ring coming out - Ringo Ring!
- [Adam Sensor - Smart ring for... penis 🍆](https://www.lordofthesmartrings.com/adam-sensor-smart-ring-for-penis.md) - I got to test the Adam Sensor, which is a unique device that you put on your penis and it tells you if your erection matches your age.
- [How does Oura ring measure stress? And will it detect depression 😔?](https://www.lordofthesmartrings.com/how-does-oura-ring-measure-stress-and-will-it-detect-depression.md) - In this post I will focus on two new features of the Oura Smart Ring and a recently published study. This is the Oura Daily Stress, Resilience (resilience) study on the link between body temperature and symptoms of depression.
- [💍RingConn news - exercise,  apnea report, sharing with family, and... return!](https://www.lordofthesmartrings.com/ringconn-news-exercise-apnea-report-sharing-with-family-and-return.md) - At the moment I see the RingConn smart ring as a sort of third place in terms of interest. The Oura ring is pretty well known these days, and Ultrahuman has made a good name for itself thanks to biohacking ecosystem. I also think RingConn is a good price/performance compromise. Its domain is mainly…
- [Nova Ring — the cheapest smart ring from Aliexpress— first impressions](https://www.lordofthesmartrings.com/nova-ring-the-cheapest-smart-ring-from-aliexpress-first-impressions.md) - I heard voices calling for a review of a cheap smart ring that can be bought on Aliexpress. It’s called the Nova Ring.
- [💍Circular SLIM — progress, but is it enough? Comprehensive review](https://www.lordofthesmartrings.com/circular-slim-progress-but-is-it-enough-comprehensive-review.md) - It’s been over a year since I published a review of the Circular Ring smart ring, which is now de facto called the Circular PRO:
- [Will the Smart Ring detect an impending common cold? 🤒](https://www.lordofthesmartrings.com/will-the-smart-ring-detect-an-impending-common-cold.md) - Can an Oura Ring, Ultrahuman or Circular predict and warn of impending illness?
- [RayBan Meta & AI beta (vs. ChatGPT)](https://www.lordofthesmartrings.com/rayban-meta-ai-beta-vs-chatgpt.md) - I’ve been testing the Ray-ban META smart glasses for a few months now. A few weeks ago, Meta came with the “look and ask” function. I…
- [Oura Ring Q4 2023 — Circles, stress, tags, experiments and more](https://www.lordofthesmartrings.com/oura-ring-q4-2023-circles-stress-tags-experiments-and-more.md) - The last time I exclusively covered the Oura Ring was in Spring 2023, when I mainly discussed the new Chronotype and Body Clock features…
- [Muse One Ring — The ring that does it all?!](https://www.lordofthesmartrings.com/muse-one-ring-the-ring-that-does-it-all.md) - As I’ve outlined in articles below about the Iris (Velia), the Samsung ring, the next-generation Circular and more, there’s a flurry of…
- [💍Circular SLIM — Resurrection?](https://www.lordofthesmartrings.com/circular-slim-resurrection.md) - The French brand Circular has a very tarnished reputation. Just browse the forums on reddit and you’ll find all sorts of things — long…
- [🌊 The new wave of smart rings - Iris, Samsung and more 💍](https://www.lordofthesmartrings.com/the-new-wave-of-smart-rings-iris-samsung-and-more.md) - My established procedure for reviewing smart rings so far is this:
- [Ultrahuman AIR — Review of the lightest smart ring](https://www.lordofthesmartrings.com/ultrahuman-air-review-of-the-lightest-smart-ring.md) - As part of a collaboration with the Ultrahuman team, I was given a new model of the Ultrahuman Smart Ring to test, called AIR, which is…
- [RingConn — Review of the cheapest smart ring](https://www.lordofthesmartrings.com/ringconn-review-of-the-cheapest-smart-ring.md) - The RingConn smart ring has been the most talked in terms of requests for a follow-up to my article I published in mid-February 2023:
- [“New” Ultrahuman Ring AIR](https://www.lordofthesmartrings.com/new-ultrahuman-ring-air.md) - Out of the blue, a “new” Ultrahuman AIR ring was released to the public this week. I put new in quotes because it is more of a facelift of…
- [24 Hours & 4 Smart Rings — Comparison](https://www.lordofthesmartrings.com/24-hours-4-smart-rings-comparison.md) - I currently own (all) 4 smart rings — Oura ring Gen3, Circular Ring, RingConn Ring and Ultrahuman Ring. So this article will be a direct…
- [Altos — personal air quality device — review](https://www.lordofthesmartrings.com/altos-personal-air-quality-device-review.md) - We have a ventilation system (i.e. an automatic air exchange system) in our house without CO2 sensors. I was thinking of integrating them…
- [Ultrahuman Ring — first impressions: finally Oura alternative?](https://www.lordofthesmartrings.com/ultrahuman-ring-first-impressions-finally-oura-alternative.md) - Ultrahuman Ring R1 is another smart ring that attacks the position of the so far number one, Oura Ring GEN3. In this article, I will touch…
- [Oura ring — TOP5 features](https://www.lordofthesmartrings.com/oura-ring-top5-features.md) - This article is primarily intended for 3rd generation Oura ring owners with basic user knowledge (i.e., the user knows how the ring works…
- [Oura Ring Q1 2023 updates- chronotype and body clock](https://www.lordofthesmartrings.com/oura-ring-q1-2023-updates-chronotype-and-body-clock.md) - While I’m expecting rather significant updates from Circular and RingConn in the smart ring plane, Oura Health has come out quite quietly…
- [Find Your Perfect Fit: A Guide to Choosing the Right Size for Your Smart Ring](https://www.lordofthesmartrings.com/find-your-perfect-fit-a-guide-to-choosing-the-right-size-for-your-smart-ring.md) - I have many questions about sizing kits and choosing the optimal ring size. I will summarize the information in this article.
- [RingConn Smart Ring — First Impressions: Nice surprise](https://www.lordofthesmartrings.com/ringconn-smart-ring-first-impressions-nice-surprise.md) - A few days ago, the post office delivered a small package to me with a RingConn sign on it. I didn’t get any echo about the package from…
- [Circular ring — full review](https://www.lordofthesmartrings.com/circular-ring-full-review.md) - Some time ago, I published an article on the topic of a paper comparison between Circular Ring and Oura Ring 3. Now I have, finally (!)…
- [Oura Ring 3 — one year later](https://www.lordofthesmartrings.com/oura-ring-3-one-year-later.md) - It’s finally here. Oura Ring 3 is finally released into production, let’s say with some irony. Only now are all the functionalities (some…
- [RingConn Smart Ring vs Oura 3 vs Circular vs Ultrahuman](https://www.lordofthesmartrings.com/ringconn-smart-ring-vs-oura-3-vs-circular-vs-ultrahuman.md) - Recently, I published two articles comparing the features of Oura ring 3 and Circular ring and the same with Ultrahuman ring. Everything…
- [Chill-out sleep by Vilgain](https://www.lordofthesmartrings.com/chill-out-sleep-by-vilgain.md) - For my next sleep test, I chose the Vilgain Chillax (natural herbal complex for calming, relaxation, and better sleep), moving testing from…
- [Common cold — zinc that works](https://www.lordofthesmartrings.com/common-cold-zinc-that-works.md) - I was the type who gets sick (common cold) two or three times in the autumn-winter-spring period, and the most common symptom is a sore…
- [Oura 3 vs Circular vs Ultrahuman](https://www.lordofthesmartrings.com/oura-3-vs-circular-vs-ultrahuman.md) - Recently, I published an article comparing features of Oura ring 3 and Circular ring from paper-based expectations.
- [Digital detox at summer camp](https://www.lordofthesmartrings.com/digital-detox-at-summer-camp.md) - I do enjoy connecting ideas across topics and this article will be such a short reflection on the following topics:
- [Oura 3 vs Circular Ring — paper-based comparison](https://www.lordofthesmartrings.com/oura-3-vs-circular-ring-paper-based-comparison.md) - I am a big fan of minimalist wearable electronics — smart rings. To be more precise, I’m mainly interested in rings that primarily measure…
- [Do cannabinoids improve sleep? Sleep test!](https://www.lordofthesmartrings.com/do-cannabinoids-improve-sleep-sleep-test.md) - Cannabinoids (especially CBD) hit the market in a big way in 2017–2018 and are still riding a very good marketing wave. For this statement…
- [Best Smart Ring: SLEEP 💤 – and what about OURA 3?](https://www.lordofthesmartrings.com/best-smart-ring-sleep-and-what-about-oura-3.md) - How Did Oura 3 Perform in the Sleep Lab? Did it match the results of Oura 4? An Appendix to the Big Comparison!

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