Reviews & explainers
How consumer tech actually works — battery ageing, camera specs, panel types, codecs and thermals — so a spec sheet stops being a guessing game.
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How Accurate Are Wrist Heart-Rate Sensors, Really?
Wrist sensors are reliable for some things and poor at others. Here is why, and when to trust them.
GPS Accuracy in Running Watches: What Causes Drift
Why your watch says you ran further than you did, and what dual-band actually fixes.
Sleep Tracking: What Wearables Can and Cannot Measure
Wearables infer sleep stages from movement and heart rate. Here is what that can and cannot show.
Smartwatch Battery Life: What Actually Drains It
Quoted battery figures assume you leave features off. Here is what actually drains a smartwatch.
What Makes a Headset Good for Calls (It Is Not the Speakers)
Call quality depends on the microphone, not the drivers. Here is what actually matters.
Fitness Tracker vs Smartwatch: Which Fits Your Training
The line has blurred considerably. Here is how to work out which one your training needs.
Open-Back vs Closed-Back Headphones: Which Suits Your Room
Open-back headphones sound more spacious but leak in both directions. Your room decides which fits.
TV Brightness Explained: Nits, HDR and Bright-Room Viewing
Brightness decides whether a TV works in your actual room. Here is which figure to trust.
OLED vs QLED vs Mini-LED: The Honest Trade-offs
These are marketing names for different solutions to the same problem. Here is what each trades away.
Refresh Rate, VRR and Input Lag: What Gamers Should Prioritise
Three specs, constantly confused. Here is what each does and which actually changes how a game feels.
Why Out-of-the-Box Colour Accuracy Matters More Than Presets
Almost nobody calibrates a TV, which makes default accuracy far more important than it sounds.
Monitor vs TV for Desk Use: What Actually Changes
A big TV looks like great monitor value. Here is what changes at desk distance.