How to Read Product Specifications Before You Buy
By Editorial Team ·
This article is only available in Spanish.
Watts, litres, pascals, bar — what the numbers on a spec sheet actually tell you, and which ones are worth comparing.
A specification sheet is the fastest way to compare two products — but only if you know which numbers matter and which are marketing. Here is a practical way to read them.
1. Compare like with like
Numbers are only comparable between products of the same type. A 1500 W coffee machine and a 1500 W air fryer have nothing in common beyond the unit. That is why our comparison tool only lets you compare products from the same category.
2. Understand what each number measures
- Power (W): how much electricity the device draws, not how well it performs. Higher power can mean faster heat-up, but efficient designs may do the same job with less.
- Capacity (L): the physical size of a tank or basket. Bigger is useful for families, but means a bulkier appliance.
- Pressure (bar) or suction (Pa): peak values under ideal test conditions. Treat them as a rough ranking within a category, not a guarantee of real-world results.
- Weight and dimensions: check these against the space you actually have.
3. Look for what is missing
If one product lists a value and another does not, that is not a win for either — it simply means the data is unavailable. In our comparison tables, missing data is shown as a dash and never guessed.
4. Weigh the specs against your use
Write down the two or three things you actually care about (for example, small footprint and easy cleaning) and compare on those first. A product that is best on paper for ten specs may still be the wrong choice for you.
5. Check the warranty and support
Warranty length and where repairs are handled are part of the real cost of ownership, especially for appliances you will use daily.
Ready to try it? Use the comparison tool to put two products of the same type side by side.
