Guides: the answers the spec sheet will not give you

Four specifications genuinely predict whether you will be happy with a portable Bluetooth speaker: physical cabinet size, the IP rating, realistic battery life at the volume you will actually use, and whether it has a way to attach to something. Wattage, frequency-response range and Bluetooth version almost never change the outcome.

Portable speaker marketing has settled into a stable pattern: print the numbers that sound impressive and are cheap to claim, omit the ones that would let you compare fairly. Wattage is quoted peak rather than continuous, and sometimes per driver rather than per system, so a 30 W speaker and an 80 W speaker can be the same loudness. Frequency response is quoted without the tolerance figure that would make it meaningful.

None of this is fraud exactly. It is a category where the honest numbers are expensive to measure and the impressive ones are free to print, and where almost no buyer knows the difference. These guides are our attempt to close that gap without a measurement lab we do not have and will not pretend to.

Start with one of these three

• [How to choose a Bluetooth speaker](/guides/how-to-choose) — the full buying framework, and the guide to read first if you have no shortlist yet.
• [IPX7 and IP67 explained](/guides/waterproof-ratings) — the single most misread specification in the category, and the one where knowing the answer saves you real money.
• [Watts and loudness](/guides/watts-and-loudness) — why the biggest number on the box is the least useful one, and what predicts real-world volume instead.

Understanding the numbers

Beyond those three, battery life explains why every quoted runtime is measured under conditions you will not replicate, and which speakers hold up when you run them the way people actually do. How long they last separates two questions everyone merges: how long the battery runs per charge, and how many years the product survives. Those have completely different answers and completely different causes.

Why cheap speakers sound cheap is the editorial spine of this site — the physics of why a small box cannot produce deep bass no matter what the processing does, and therefore what you should and should not expect from a budget speaker. If you only read one guide before buying at the bottom of the market, read that one.

Making the one you own work better

Not every problem needs a purchase. How to make a Bluetooth speaker louder covers the device-side settings that are quietly capping your volume on both iPhone and Android, most of which people never find. Bluetooth speaker keeps cutting out works through the causes in order of likelihood rather than making you try everything.

And how to pair two Bluetooth speakers covers stereo pairing and multi-speaker linking on each platform, including the part most guides skip: what can and cannot be linked across brands and generations. Buying a second speaker is frequently a better upgrade than replacing the one you have.

Buying for somebody else? The speaker gift guide is written for the gifter rather than the enthusiast — what lands, what to check before buying, and what the recipient would have to add to actually use it.