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?
Adam Sensor - Smart ring for... penis 🍆
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 😔?
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!
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
Nova Ring — the cheapest smart ring from Aliexpress— first impressions
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
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? 🤒
Can an Oura Ring, Ultrahuman or Circular predict and warn of impending illness?
RayBan Meta & AI beta (vs. ChatGPT)
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
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?!
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?
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 💍
My established procedure for reviewing smart rings so far is this:
Ultrahuman AIR — Review of the lightest smart ring
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…