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  • The Xiaomi Mi 9 – the more expensive premium smartphone in the Xiaomi line up, but at the

  • same time, still pretty fairly priced for the specs and power it brings to the table.

  • And the box looks legit.

  • Xiaomi is claiming to have added a sapphire glass protective layer on their camera lens.

  • Sapphire is an ultra hard, ultra premium product with superior scratch protection, right there

  • next to diamonds.

  • But not all sapphire is created equal.

  • Today we'll see if Xiaomi is using real quality sapphire like HTC, Tissot, and Kyocera, or

  • if they are using junk sapphire like Apple.

  • Let's get started.

  • [Intro]

  • You got to hand it to Xiaomi for this color scheme.

  • This is the Holographic Ocean Blue.

  • It's definitely a deeper blue than I anticipated, with hints of purple and basically all of

  • the other colors.

  • The phone feels pretty lightweight, but we'll get to that in a second.

  • Let's start with the scratch test.

  • I have a set of Mohs hardness mineral picks that are used to differentiate between different

  • minerals and gemstones, and they let us know exactly what kind of materials we are dealing

  • with.

  • Glass and sapphire, while both optically clear and at first glance might look the same, are

  • completely different materials.

  • Plastic scratches at a level 3.

  • Glass scratches at a 5 or a 6, and pure sapphire would scratch at a level 8 or 9.

  • Diamonds, of course, are the hardest mineral and scratch at a level 10.

  • The screen of the Mi 9 scratches at a level 6, with deeper grooves at a level 7.

  • Xiaomi is advertising Gorilla Glass 6 on the screen of this phone, so those numbers are

  • pretty typical for what we find on tempered glass screen flagships.

  • Xiaomi has the teardrop notch up here at the top, hiding a 20 megapixel selfie camera.

  • The small sliver of a speaker grill is also tucked up here in the top bezel.

  • It's very secure.

  • The build quality of this Mi 9 is off to a good start.

  • The phone is made from anodized 7,000 series aluminum.

  • It's pretty normal of the glass sandwich style phones these days.

  • The volume and power buttons are also metal.

  • Down here at the bottom of the phone next to the USB-C we have no headphone jack.

  • But over here on the left side we do have a fully customize-able side button that can

  • take pictures, open apps, or start a voice assistant.

  • The dual SIM card tray has no expandable storage.

  • It does have a rubber ring around the tip, but unfortunately, just a light touch of my

  • SIM removal tool popped the low quality rubber band from around the SIM card tray opening.

  • There's no official IP rating on this phone, which is good because this rubber is totally

  • worthless and shouldn't be officially protecting anything.

  • Xiaomi's flagship Mi line does not have the SD card slot or headphone jack anymore, but

  • the budget Redmi line does include those extra features.

  • If the Redmi line is cheaper and has more features, it's honestly worth considering

  • even if the phone is plastic.

  • Up at the top of the Mi 9, along with more metal, is the infrared remote control which

  • is a fun little addition to this smartphone.

  • The Mi 9 does have a plastic layer between the screen and metal frame of the phone which

  • is good.

  • It helps absorb some of the impact between two brittle layers if it's ever dropped.

  • Xiaomi has advertised over and over about their new sapphire glass camera cover on top

  • of the triple camera setup.

  • The first problem with that sentence is that it's never actually called sapphire glass.

  • Glass is glass, and sapphire is crystal.

  • Two totally different materials.

  • Both materials should be impervious to my level 5.5 stainless steel razor blade.

  • Glass won't start scratching till right above that at a level 6.

  • The reason sapphire is so valuable and premium is because of it's scratch resistant properties.

  • It should hold out till a level 8 before it gets damaged.

  • Unfortunately though, I can start to feel my level 6 pick grind on the surface of Xiaomi's

  • sapphire, leaving permanent marks.

  • The level 7 pick also leaves marks on the sapphire lens cover when it should definitely

  • not.

  • And finally, the point when we should start seeing scratches, level 8, we get some pretty

  • hefty gouges.

  • Things aren't looking good.

  • I'll pull out my level 6 one more time to double check, and indeed we see more scratches.

  • I'm not impressed.

  • This is not the good stuff.

  • Before we pull out any pitchforks though, let's see if it registers as sapphire.

  • You can see here the glass lens of my Galaxy S8 Plus has no reaction with my electronic

  • gemstone detector tool.

  • But when I place the same tool up against the sapphire lens of the Mi 9, the tool does

  • indeed have a reaction.

  • The selector can detect the thermal conductivity that sapphire and diamonds have, but that

  • same conductivity is not found in glass or fake gemstones.

  • So Xiaomi is indeed using sapphire, just not a quality version of it.

  • Maybe Xiaomi found a way to combine sapphire and glass, and that's why they called it sapphire

  • glass instead of the correct sapphire crystal.

  • Either way, Xiaomi has just joined Apple's ranks with sub-par inferior sapphire that

  • should not be compared with the real stuff.

  • There are a few companies that are doing it right like Tissot, HTC, and Kyocera.

  • So if you want real premium quality sapphire, head over to those guys.

  • Xiaomi is using an under screen fingerprint scanner, an optical fingerprint scanner just

  • like the one found in the OnePlus 6T.

  • We'll have to take a look at it from the inside if this phone survives the bend test.

  • But first we'll scuff up the surface of the glass with level 7 scratches to see if Xiaomi's

  • fingerprint scanner can function due to the unrealistic exorbitant amounts of abrasion....and

  • indeed it can.

  • Scratches are definitely not an issue for this optical fingerprint scanner.

  • Thumbs up for that.

  • Optical scanners only work with LED displays and not LCDs, since LED panels are slightly

  • opaque allowing the under screen camera to see through the display.

  • We can verify that indeed it has the characteristics of AMOLED by using this highly scientific

  • Bic inflammatory device I obtained at a gas station.

  • The Mi 9 has a 6.4 inch 1080p AMOLED display that turns white after about 30 seconds.

  • But then the pixels do end up turning back on and recovering.

  • If you think the burn test is extraneous, you are definitely not wrong.

  • Now for the bend test.

  • The last Xiaomi phone I tested, the Redmi Note 7, did not do so well.

  • It's plastic frame eventually succumbed to the pressure and fractured into unusable bits.

  • This Mi 9 however, with it's metal frame, survives the first bend from the back, and

  • second bend from the front.

  • The thin phone slightly flexes each time, but no permanent damage is done to the frame,

  • the display, or the glass on either side.

  • The Xiaomi Mi 9 is a survivor.

  • Yeah, I'm not a huge fan of the sapphire glass attempt, or the lack of headphone jack and

  • expandable memory card slot, but Xiaomi has built a solid phone and I can't get too mad

  • at the guys building flagship phones for hundreds of dollars cheaper than Apple and Samsung.

  • If you do buy this phone, it's more for the cool kaleidoscope of colors and not for the

  • sapphire on the camera lens.

  • Come hang out with me over on Twitter and Instagram, and let me know what phone you

  • want to see tested next down in the comments.

  • Thanks a ton for watching.

  • I'll see you around.

The Xiaomi Mi 9 – the more expensive premium smartphone in the Xiaomi line up, but at the

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米9耐用性測試!- 相機鏡頭是藍寶石? (Mi 9 Durability Test! - Is the Camera Lens Sapphire?)

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    林宜悉 發佈於 2021 年 01 月 14 日
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