Petal is a bra insert that uses bio-impedance sensors and electrical measurements to monitor blood flow near the heart. Because wearers position the insert right next to the heart, the device can capture more accurate readings than your typical smartwatch, Petal says. The device comes in one size and fits snug against each breast. It's made with biocompatible materials, including a soft European fabric and a polyurethane-coated interior.
Food logging can be done in a few ways, including searching a database, scanning barcodes, or using AI-based camera analysis. Simpler items like eggs and fruit are identified well, but complex meals can be frustrating due to lighting and AI limitations.
The Ultrahuman Ring Pro advertises up to 15 days of battery life. For comparison, the Ultrahuman Ring Air lasts 4-6 days on a charge according to official numbers. That's a massive upgrade but isn't the end of it either. The new ring comes with a new Pro Charger, which extends the ring's endurance up to 45 days.
We use the IMU sensors to detect which exercise the user is performing and identify the period engaging in concentric, eccentric, or isometric hold. These are the three main types of lifting exercises; you might know them as contracting, lengthening, or static exercises. The Fort uses the wrist as a proxy for bar velocity, and the company is seeking FDA clearance and will also be pursuing large, third-party studies from independent labs.
A tennis match usually starts with rituals you can set your watch by. A towel tug, a ball bounce, a glance at the strings. This year, a different ritual stole the first spotlight, because officials asked top players to take off a wrist wearable before they played, and the moment landed like a plot twist you did not order. This piece walks you through what happened, why it happened, and what it says about where tennis sits with athlete data right now.
If there's one thing that stops people using their smart rings over the long term, it's the battery life. After all, they're so unobtrusive, it's easy to forget to drop it on the charging plate every few days. It doesn't take long for your pricey gadget to become little more than a very expensive piece of jewelry.