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Realme C21 review

Expert review

This simple smartphone might lack access to the 5G network, but if it does the basics well, the Realme C21 might still be worth considering  if you’re looking for an entry-level smartphone. We tested it to see how it compares with higher-priced alternatives.

What's included:
  • Pros and cons
  • What is it?
  • What’s it like to use?
  • How long does the battery last?
  • How good are the cameras?
  • Is there anything I should know?
  • Should I buy it?
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First reviewed by Which?

August 2021

Released

June 2021

Technical specifications

Display

Test results

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

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Best Buys and Don't Buys
We have tested 216 mobile phones and found that there are 2 Don't Buys and 54 Best Buys.
Range of Mobile phone scores
  1. 28%
    Lowest score
  2. 71%
    Average score
  3. 84%
    Highest score
We'll show you where this model sits on the scale so that you can see how it compares to mobile phones we've tested
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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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