Buying a Gadget Without Regret

Spec sheets are long and marketing is loud. A short checklist of what actually matters helps you pick a phone, laptop or pair of headphones you will still like in two years.

Start with the job, not the spec

Write down the three things you will do most with the device. A phone for navigation, messaging and photos of your children has different needs from one used for mobile gaming. Starting from the job keeps you from paying for features you will never use.

Battery: read the units

Phone and power bank batteries are usually rated in milliampere-hours. An ampere-hour is a unit of electric charge, and a milliampere-hour is one thousandth of that. A larger rating means more stored charge, but real battery life also depends on the screen, the processor and the software. Independent reviews that measure battery life in real use are more informative than the number on the box.

Software support matters

How long will the maker provide security updates? A device that stops receiving updates becomes riskier to use online. Many manufacturers publish their support period; check it before buying, especially for cheaper models.

Repairability and accessories

• Can the battery be replaced at a reasonable cost?
• Are spare parts and authorised repair options available where you live?
• Does it use a common charging standard you already own?
• Is there a sturdy case available?

Reading reviews well

Look for reviewers who explain how they tested. Be cautious with star ratings alone: a product with a few hundred ratings is a different evidence base from one with tens of thousands, a point our probability primer explains. Read the negative reviews first; they show what goes wrong.

Timing and price

New models tend to push down the prices of older ones, and a previous-generation device often offers most of the benefit for less. Refurbished devices from reputable sellers, with a warranty, can be good value. Avoid buying on impulse during a countdown sale; a timer is a sales tool, not information.

After you buy

Second-hand and grey imports

Devices bought second-hand or imported from another country can be bargains, but check three things first: that the device is not locked to a carrier or an account, that it supports the mobile network bands used where you live, and that the warranty is honoured locally. A device that cannot be repaired or updated in your country is cheaper only until something goes wrong.

After you buy

Keep the receipt and the box during the return period, register the warranty if required, and test everything early: every camera, both speakers, charging, and any feature you bought it for. Problems found in the first week are the easiest to fix.

Written by Selim Arda · rev. 2026-11-09