Does a Case Make Your Phone Slower?

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  • Published: 22 June 2019
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    We test an iPhone Xs Max and a Samsung Galaxy S10+ with a variety of phone cases – including the Apple leather case – to see if a case can make your phone slower by affecting its thermal performance.

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Comments • 3 045

  • mike taylor
    mike taylor  7 hours back

    I wanna see the test on an otterbox defender

    • Shahbaz Quraishy
      Shahbaz Quraishy  20 hours back

      So basically all manufacturers avoid thermal throttling for benchmarking...ohhhkkey

      • nitesh shrestha
        nitesh shrestha  3 days back

        *nepali

        • JoJo Rox
          JoJo Rox  4 days back

          What about screen protectors?

          • Random Interests
            Random Interests  5 days back

            Could have used the note 7 instead

            • Random Interests
              Random Interests  3 days back

              You read my mind

            • The Mockracy
              The Mockracy  3 days back

              They could have. A proper mythbusters episode must have things blow up.

          • Behind TheWall
            Behind TheWall  7 days back

            not very surprising, these phones are already built to be insulators. when the outside is "hot" (translation: uncomfortably warm but still holdable) the insides are practically boiling

            • TjDolHaus86
              TjDolHaus86  1 weeks back

              Just in case you were wondering why motorcycle clothes are made of leather - It's to offer a level of waterproofing and abrasion resistance should you fall off and slide across a road. It won't protect you from longer slide but unlike many other synthetic materials it won't melt and stick to your skin as a result of the friction, road rash sucks enough as it is without the doctor needing to cut melted crap away from what would have been otherwise healthy tissue.

              • Yoshimation
                Yoshimation  2 weeks back

                Well my case basically lets me charge to 200% so I don’t really care.


                By like 3PM I use up the extra battery.



                I have a problem...

                • nem tudom
                  nem tudom  2 weeks back

                  6:21 You're canadians DAMNIT! You're supposed to "lets go to the mall"!

                  • Jack Pot
                    Jack Pot  2 weeks back

                    Is charge it like send it for Canadians?

                    • Gabriel Dubé
                      Gabriel Dubé  2 weeks back

                      Aluminum case

                      • Saumadip Das
                        Saumadip Das  3 weeks back

                        First Fortnite and now PUBG. Way to go Linus.

                        • SenselessWebstar
                          SenselessWebstar  3 weeks back

                          Linus, I've noticed on the Raspberry PI 3 that it runs cooler upside down. I'd be interested to see if running these tests with the phone upside down would make it throttle more. However, phones aren't usually used that way so...

                          • TheNegronomicon
                            TheNegronomicon  3 weeks back

                            What I learned aside from cases not really affecting phone performance is that phones are filthy little cheaters that will let your phone heat up while running known performance testing apps so the score looks better.

                            • CouchPotato456
                              CouchPotato456  3 weeks back

                              doing anything on snapchat thermally chokes my phone but it's an ancient iphone 5s and its in the case

                              • A Very Long Straw
                                A Very Long Straw  3 weeks back

                                Linus Is happy about thermal throttling lmao

                                • Muhammad Yunus
                                  Muhammad Yunus  3 weeks back

                                  What type of case/cover is he talking about? A normal case or chargeable?

                                  • XSportSeeker
                                    XSportSeeker  3 weeks back

                                    Question for those who understand this better - wouldn't the fact that those phones are IP68 or something and have a backplate made of glass, a very bad thermal conductor, render whatever you put on the back of a phone pretty inconsequential? I mean, unless it's something active - either heating or cooling things a ton by itself, like an open flame or... dry ice.

                                    One way or another, very hard for regular smartphone users to even get to the point of thermal throttling phones anyways... I use one of those wallet cases. Been using them since the first phone, and on the current already ancient OnePlus 3 I started using it a couple of months before getting it. Zero problems. Well, I never even got to make this phone uncomfortably hot yet, despite playing some simple games and watching a whole ton of videos on it.

                                    • SparkSmasher
                                      SparkSmasher  3 weeks back

                                      Linus: 70 Canadian dollars?
                                      Also Linus: i broke an $8,000 cpu sry

                                      • SparkSmasher
                                        SparkSmasher  3 weeks back

                                        10S MAX Leather Case
                                        oops

                                        • nomsky
                                          nomsky  3 weeks back

                                          really, you dont even have..Excel? Ask Steve for diagrams!

                                          • stephen
                                            stephen  3 weeks back

                                            don't phone cases have holes where the phone vents are? i haven't seen a single case IRL with no holes

                                            • Pookie S.
                                              Pookie S.  3 weeks back

                                              RIP, you didn't test the Android equivalent to the $70 case. *_D:_*

                                              • Dragon Roars
                                                Dragon Roars  3 weeks back

                                                My note 9 overheats anytime i use google maps

                                                • Robert Harvilla
                                                  Robert Harvilla  3 weeks back

                                                  A thin plastic or silicone shell around a phone will prevent it from heating up too quickly on the dash of your car in its mount. I just got a new Galaxy S10e and an LG G8, and they both overheated within seconds of being placed on my dash. With the case? Not at all.

                                                  • [OOF]
                                                    [OOF]  3 weeks back

                                                    Case closed

                                                    • Gasem
                                                      Gasem  3 weeks back

                                                      Yaaaas

                                                      • Dom Filalouce
                                                        Dom Filalouce  3 weeks back

                                                        Music title please at 06:26

                                                        • Drix Reyes
                                                          Drix Reyes  3 weeks back

                                                          I think Linus roasted Fortnite mobile.

                                                          • thechickensandwich
                                                            thechickensandwich  3 weeks back

                                                            That pubg script was cringe

                                                            • George Robles
                                                              George Robles  3 weeks back

                                                              Ever try the VR stuff to cook phone?

                                                              • SP4RZrTs
                                                                SP4RZrTs  3 weeks back

                                                                Bro Linus is balding we are going to see a bald Linus

                                                                • Mr. Reese
                                                                  Mr. Reese  3 weeks back

                                                                  You actually call it iPhone 10, not iPhone X?

                                                                  • Bud King
                                                                    Bud King  3 weeks back

                                                                    Linus, this was a great test, but I think an additional test with the phone facing screen down to the desk would have better results.

                                                                    If you think how most phones are made, the cpu is normally on the top side of the motherboard for instance iPhones have the cpu chip facing upwards towards the screen just above the sim card tray, so that could explain why the XR pushes heat towards the screen and as we all know heat rises so that probably factors in.

                                                                    if it was facing towards the desk not only is the desk insulating the screen further but the heat naturally will have to go up towards the back of the phone.

                                                                    This is just I thought of mine after watching your video but it seems logical from my point of view, I could be entirely wrong.

                                                                    • Maxim Chintalov
                                                                      Maxim Chintalov  3 weeks back

                                                                      Dude, why are you surprised about the case being overpriced? It's an Apple product! You could've the gotten same exact or similar leather case but without the Apple logo for much cheaper!

                                                                      • kmasahi
                                                                        kmasahi  3 weeks back

                                                                        Hi Linus, just found an interesting water cooling solution for mobile phones, it seems interesting :
                                                                        【手机散热器水冷式液冷苹果吃鸡刺激战场小米vivo游戏直播降温华为】https://m.tb.cn/h.eTQjBqh?sm=801a8d 点击链接,再选择浏览器咑閞;或復·制这段描述¥mfRbYgO2X3e¥后到👉淘♂寳♀👈

                                                                        • Monsieur Mammon
                                                                          Monsieur Mammon  3 weeks back

                                                                          Just use a aluminium case and put thermal grease on your phone before putting it on. ^^^^^^^^^^^^^^^^^^

                                                                          • Ricardo Salavessa
                                                                            Ricardo Salavessa  3 weeks back

                                                                            What about a skin?
                                                                            Could test on laptops too...

                                                                            • Chloshoo
                                                                              Chloshoo  4 weeks back

                                                                              Lmao I accidentally paused it when you guys were talking about the Huawei and honor thingsnd my phone is Huawei and my friend didn't see me pause it and she was like :O IT KNOWS WHEN SOMETHING IS TALKING ABOUT IT

                                                                              • MICKYLEAKS_MGR LEGAL PRESIDENT AND CJ INDIA

                                                                                Try testing without the magnetic part on the screen.

                                                                                • Texan 214
                                                                                  Texan 214  4 weeks back

                                                                                  Great info. Well done.

                                                                                  • SHASANKA SEKHAR DASGUPTA

                                                                                    Please do 2 .0 of it doing a test by testing apps gamesmanually to make the phone throttle please also do by applying a tempered glass over the phones

                                                                                    • Ali Tahir
                                                                                      Ali Tahir  4 weeks back

                                                                                      Use a magnetic case it affects to much

                                                                                      • Snake
                                                                                        Snake  4 weeks back

                                                                                        yes

                                                                                        • Lindsay
                                                                                          Lindsay  4 weeks back

                                                                                          Since when does someone care about thermal throttling on a phone? Lets be honest, mobile gaming is a joke.

                                                                                          • Avieshek
                                                                                            Avieshek  4 weeks back

                                                                                            Okay, if the screen helps in dissipating heat, does it affect OLED screens in the long run?

                                                                                            • Jag S
                                                                                              Jag S  4 weeks back

                                                                                              You guys are running out of ideas aren’t you?

                                                                                              • Unbeliever
                                                                                                Unbeliever  4 weeks back

                                                                                                Please clean your nose before you recording videos James. Nobody wants to see your snot. Also, comparing the premium leather case price to crappt chinese third party cases? Amazingly "unbiased" comparison.