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Sony WI-XB400 review

Key features
  • In-ear
  • Wireless
Reviewed

Love in-ear headphones but don’t get on with truly wireless ones? The Sony WI-XB400 headphones promise ‘all day power’ with a claimed 15-hour battery life and have magnetic earbuds that attach to each other for easy storage. Despite the headphones’ affordable price, Sony promises they ‘pack a punch’ and ‘deliver exceptional bass, lifting each and every track.’ But do our professional listening panel agree? We put them to the test to find out.

Included in our expert review
  • Pros and cons
  • What are they?
  • How do they sound?
  • What are they like to live with?
  • Is there anything I should watch out for?
  • Is there anything I should know?
  • Should I buy them?
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Test results

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

Find out how we test headphones>
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Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

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Prices updated daily

Prices are ordered from lowest to highest, irrespective of retailer rating or stock. We are not able to show every possible retailer and cheaper prices may be available. When you click on a retailer link on our site, we may earn affiliate commission. This supports our not-for-profit mission to empower consumers and in no way affects our recommendations. Find out more.

RetailerRetailer ratingPriceIn stock
Amazon.co.uk
£39.00
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AO.com
£40.00
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Boots Kitchen Appliances
Not rated
£40.00
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Currys
£40.00
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John Lewis & Partners
Not rated
£40.00
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Littlewoods
£49.99
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Make smarter choices

We have tested 215 headphones and found that there are 48 Don't Buys and 33 Best Buys.
Range of Headphone scores
  1. 18%
    Lowest score
  2. 55%
    Average score
  3. 91%
    Highest score
We'll show you where this model sits on the scale so that you can see how it compares to headphones we've tested
Try Which?
First month only £5, then £9.99 per month, cancel any time

Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

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