THE TECH JOURNAL • Anurodh Jalan

Hardware Insights, Buying Guides & Tech Culture

In-depth teardowns, sound engineering comparisons, and battery science guides to help you make smarter hardware decisions.

Smart Wearables

Sep 25, 2026 • 1 Min Read

Smartwatch Health Vitals: Optical PPG vs ECG Sensor Accuracy in 2026

An analysis of PPG photoplethysmography sensors, blood oxygen SpO2 monitoring, and fitness algorithms in modern AMOLED…

Fast Charging

Sep 25, 2026 • 1 Min Read

Discover how Gallium Nitride semiconductors replace legacy silicon, running cooler at higher voltage thresholds in pocket-sized…

Audio Engineering

Sep 25, 2026 • 1 Min Read

A comprehensive breakdown of hybrid microphone arrays, inverted frequency soundwaves, and how 32dB ANC creates true…

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