Samsung Galaxy S21 5G
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Samsung Galaxy S21 5G

User opinions and reviews

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  • ?
  • Anonymous
  • XBK
  • 22 Jan 2026

Vhonani, 29 Jun 2025Drains very fastIt is common after an update it will normalise in few days

    • T
    • Twotrumu
    • XIa
    • 13 Jan 2026

    Classy; my chroniche

      icedanny38 , 01 Jan 2026Plastic back is still pretty good for heat extraction compa... moreMore like economical yet sturdy, it doesn't attract as many fingerprints too.

      The glass backs on later models are just for show and will become pointless with a case.

        • i
        • icedanny38
        • XB5
        • 01 Jan 2026

        Anonymous, 08 Dec 2025Why plastic backPlastic back is still pretty good for heat extraction compared to glassy back

          • R
          • Rick
          • r3b
          • 23 Dec 2025

          Titi, 30 Sep 2025I just got my phone, realized it was running android 11 dec... moreDis you bought used

            • ?
            • Anonymous
            • auA
            • 08 Dec 2025

            Why plastic back

              • ?
              • Anonymous
              • XSk
              • 29 Nov 2025

              Heats like shit when using data it's like 42 degrees on idle

                • ?
                • Anonymous
                • N@0
                • 12 Nov 2025

                69420, 30 Oct 2025This phone will not get one ui 8 but you can install custom romNot With Mine, Mine Is Locked To T-Mobile, And It Also Locks The Bootloader

                  • 6
                  • 69420
                  • vFJ
                  • 30 Oct 2025

                  Gurmu, 22 Oct 2025How can I upgrade to UI 8?This phone will not get one ui 8 but you can install custom rom

                    • ?
                    • Anonymous
                    • XLj
                    • 29 Oct 2025

                    BarisNeoLibreral, 27 Oct 2025A true Samsung flagship the legend, the myth. This phone w... moreThe design of this phone is timeless. I really hope Samsung brings it back. It was very very unique.

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                      • BarisNeoLibreral
                      • Bnr
                      • 27 Oct 2025

                      A true Samsung flagship the legend, the myth. This phone was like releasing iphone 6 design back in 2014. It might look like the display is flat but it is actually slightly rounded, 2.5d edged. So the samsung still got it. Will probably import from China or Usa for snapdragon versions. Also like 200 dollars for a ligthtweight flaghsip chip phone? Used to pray for times like these man

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                        • Gurmu
                        • Ng$
                        • 22 Oct 2025

                        Jaayde, 05 Oct 2025If you update to android 15, one UI 8. I'd suggest you... moreHow can I upgrade to UI 8?

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                          • Jaayde
                          • XBF
                          • 05 Oct 2025

                          If you update to android 15, one UI 8. I'd suggest you turn on ram plus and set it to 8gb. You would never experience any performance issues again

                            • T
                            • Titi
                            • XBF
                            • 30 Sep 2025

                            I just got my phone, realized it was running android 11 decided to update it to android 15, overall performance has drastically reduced, I mean it.
                            I wonder what the 'update' was for

                              • t
                              • trix
                              • T0V
                              • 26 Sep 2025

                              LorrdWealth, 27 May 2025Can someone explain to me why my s21 5g doesn't turn o... moreThere are different 5g frequency bands...

                                • I
                                • Izzy
                                • XB5
                                • 17 Sep 2025

                                Anonymous, 10 Jul 2025I bought this phone refurbished and I have been using it fo... more3hrs battery life in 2025? Wawu

                                  • J
                                  • Jaayde
                                  • Nu7
                                  • 24 Aug 2025

                                  I just updated to android 15 (One UI 7.0).
                                  Overall performance is still the same, I'd say this UI just feels a lot lighter, feels like a pixel but looks diff.

                                  Now for the green line issues, it is caused by heat. This is not a phone to keep I'm a pouch whilst it is charging or when it's warm. Overall, I'd say for a 2021 device, the S21 still holds its own. But you have to handle this device with extra care.

                                    • ?
                                    • Anonymous
                                    • va0
                                    • 23 Aug 2025

                                    Anonymous, 10 Jul 2025I bought this phone refurbished and I have been using it fo... more3hrs wow

                                      • S
                                      • SAK
                                      • PPS
                                      • 09 Aug 2025

                                      Had this phone for 4.5 years still going strong. Cameras are good sound is good. wont be upgrading till it goes. im hoping another few years

                                        • ?
                                        • Anonymous
                                        • raQ
                                        • 07 Aug 2025

                                        Anonymous, 26 Jul 2025They’ve killed of all these beauty’s with 15 . Samsung in a... moreNice comments ios users as Android users get features