How to judge whether a gadget is worth the money

By Gadget Rivals Editorial Team · Published 20 October 2026

A five-question scoring method for deciding whether a gadget is worth the money: real use, cost per use, alternatives, lifespan and resale.

Reviews tell you whether a gadget is good. They rarely tell you whether it is worth it for you. This simple five-question method helps you decide before you spend.

1. Name the problem it solves

Write one sentence: "I will use this to..." If you cannot finish it without the word "maybe", wait.

2. Work out the cost per use

Divide the price by how many times you realistically expect to use it over its life. A £300 pair of headphones used daily for three years costs under 30p a day. A £150 gadget used five times costs £30 each time.

3. Look for a cheaper alternative

Last year's model, a refurbished unit or something you already own may do most of the job. Refurbished electronics from reputable sellers usually include a warranty.

4. Check its lifespan and support

Check how many years of software and security updates the maker promises, whether the battery can be replaced, and whether spare parts are available.

5. Know your exit route

Popular brands hold resale value better. Also remember that in the UK you usually have 14 days to cancel most online purchases under the Consumer Contracts Regulations.

Score it

Give each question a score from 0 to 2. Eight or more out of ten: buy with confidence. Five to seven: wait for a sale or look at alternatives. Under five: skip it.

A worked example

Say you're considering a £250 smartwatch:

Problem: "I'll use this to track my runs and see notifications without my phone." Clear. Score 2.
Cost per use: used daily for three years, that's about 23p a day. Score 2.
Cheaper alternative: a £60 fitness band would track runs but has a poorer screen for notifications. Score 1.
Lifespan: the maker promises updates for several years, but the battery isn't replaceable. Score 1.
Exit route: popular brand, good resale value. Score 2.

Total: 8 out of 10. Worth buying, ideally in a sale.

Hidden costs to include

Subscriptions: some gadgets lock key features behind a monthly fee. Add a year or two of fees to the price.
Accessories: cases, chargers, cables, memory cards and replacement parts.
Running costs: ink, filters, batteries, or electricity for devices that are always on.
Ecosystem lock-in: does it only work well with one brand of phone or one smart home system?

Timing your purchase

New models often arrive on a yearly cycle, and the previous model is frequently discounted when they do.
Price-tracking tools show whether a "deal" is genuinely lower than usual.
Be sceptical of "was" prices; check the price history.

Your rights if it goes wrong

Under the Consumer Rights Act 2015, goods must be of satisfactory quality, fit for purpose and as described. If a fault appears, you have 30 days to reject the item for a full refund. After that, the retailer gets one chance to repair or replace it. For faults within six months, it's generally assumed the fault was there at delivery unless the retailer proves otherwise. These rights are against the retailer, not the manufacturer, and they're separate from any warranty.

When "worth it" means waiting?

If a gadget scores low only because it's new and expensive, wait. Early versions often have bugs fixed by software updates, prices usually fall, and reviews from long-term owners reveal problems that launch reviews miss. A few months' patience rarely costs you anything.

Sources and further reading

Facts checked on 20 October 2026. Spotted an error? Tell us and we will correct it.

Frequently asked questions

What should you know about 1. Name the problem it solves?