I Tested the Oura Ring 4 for an Entire Year and Here's My Honest Review

The Oura Ring 4 will cost $349 for Silver or Black, $399 for Brushed Silver or Stealth, or $499 for Gold or Rose Gold. In ...

CES 2026 Live Blog: All of the Coolest Tech We Saw

Read our live updates from CES 2026 in Las Vegas to see the latest consumer gadgetry in all of its chatbot-enabled, ...

I tested the Oura Ring 4 for an entire year and let’s just say that I have some thoughts

Plus, everything you need to know about the brand-spanking-new ceramic rings.
BMJ

A new 2-regression model for the Actical accelerometer

Department of Exercise, Sport and Leisure Studies, The University of Tennessee, Knoxville, TN, USA Dr S Crouter, Department of Exercise and Health Sciences, University of Massachusetts Boston, 100 ...
Investopedia

What Is Options Trading? A Beginner's Overview

Learn the benefits and risks of options and how to start trading options Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. Samantha (Sam) Silberstein, CFP®, CSLP®, ...
IEEE

Two-Dimensional Vector Accelerometer Based on Hole-Assisted Three-Core Fiber Cantilever With Annular Inertial Mass Block

Abstract: We demonstrate a two-dimensional (2D) vector accelerometer based on hole-assisted three-core fiber (HATCF) cantilever with annular inertial mass block. The accelerometer is built by fixing ...
IEEE

A Nano-g Fabry–Pérot Damped Accelerometer Featuring All-Metal-Elastic Fiber Optics Technology With 112-dB Dynamic Range

Abstract: In the critical applications of geological disaster prediction, aerospace, and other fields, the development of accelerometers is increasingly trending toward higher precision, larger ...