Pebble
Pebble Index 01 Review: The Smart Ring That Measures Absolutely Nothing
No sensors, no charging, no subscription – just a button and a microphone. I tested the Pebble Index 01 voice-note ring as a way to catch ideas on the go.
Pebble
No sensors, no charging, no subscription – just a button and a microphone. I tested the Pebble Index 01 voice-note ring as a way to catch ideas on the go.
💍Oura Ring Gen 3 & 4 & 5
I strapped an Oura Ring 5 and a chest strap to one ordinary day — sleep, six workouts, the lot — and pulled the raw data. Here's how a smart ring actually measures your heart rate, and exactly where it goes quiet.
steps accuracy
Three of the newest smart rings, a scientific ankle pedometer on my leg and 20 days of real-life walking. Which one gets closest to reality? And why do all three (SPOILER!) count fewer steps than you actually take?
💍Oura Ring Gen 3 & 4 & 5
The Oura Ring 5 is radically smaller and slimmer than the Gen 4. But does the miniaturization cost you anything in the data? I wore both generations on the same night to find out.
💍Ultrahuman AIR & PRO
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 Ring Gen 3 & 4 & 5
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 Gen 3 & 4 & 5
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
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.
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
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.
sauna
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 PRO
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?