substantiate thisIs the screen on the iPhone 5 (gorilla glass 2.0) resistant enough to every day use or is a screen protector necessary.
If you keep it in a dedicated pocket and don't throw it around, it should be enough.
But you need to remember that Gorilla Glass is not harder than quartz, which is found it most dust, sand, and rocks. If you have any of that stuff in your pocket then yes, you will get scratches.
Personally I go without a screen protector and have Applecare+ on it in case it gets scratched or whatever.
Then what the hell is it resistant against
Gorilla Glass, on the hardness scale, has a hardness of 6+ - 7. (there is some dispute about this, as some have claimed it is a 9. But the frequency of reports of it being scratched makes me believe the number I heard in other forums about it being between 6 and 7.)
Anything harder than that will scratch the screen.
Iron, steel, nickel, lead, gold, silver or any medal are softer (1-5) than gorilla glass, so they should not scratch the glass.
On the other hand, sand contains quartz and it could scratch gorilla glass, for example when sand is in your pockets (after a walk on the beach).
One more thing:
a common misconception is: 'make something sharp and it will scratch'. it's wrong. you can make your fingernail or your key as sharp as possible, it is still softer than the glass and it will not scratch.
So, no, keys won't scratch it (steel), but anything harder than 7 on the scale will with no problem. So anybody that has no scratches obviously hasn't made contact to the screen with anything harder than a 7 on this scale.
Hardness Substance or mineral
0.20.3 caesium, rubidium
0.50.6 lithium, sodium, potassium
1 talc
1.5 gallium, strontium, indium, tin, barium, thallium, lead, graphite
2 hexagonal boron nitride,[10] calcium, selenium, cadmium, sulfur, tellurium, bismuth
2.5 to 3 magnesium, gold, silver, aluminium, zinc, lanthanum, cerium, Jet_(lignite) (lignite)
3 calcite, copper, arsenic, antimony, thorium, dentin
4 fluorite, iron, nickel
4 to 4.5 platinum, steel
5 apatite, cobalt, zirconium, palladium, tooth enamel, obsidian (volcanic glass)
5.5 beryllium, molybdenum, hafnium
6 orthoclase, titanium, manganese, germanium, niobium, rhodium, uranium
6 to 7 glass, fused quartz, iron pyrite, silicon, ruthenium, iridium, tantalum, opal
7 quartz, vanadium, osmium, rhenium
7.5 to 8 hardened steel, tungsten, emerald, spinel
8 topaz, cubic zirconia
8.5 chrysoberyl, chromium, silicon nitride
9-9.5 corundum, silicon carbide (carborundum), tungsten carbide, titanium carbide, stishovite
9.510 rhenium diboride, tantalum carbide, titanium diboride, boron nitride, boron [11][12][13]
10 diamond
>10 nanocrystalline diamond (hyperdiamond, ultrahard fullerite)
Also, it does matter how much force you put into it. I bet a metal like titanium can still scratch the screen if you put a lot of force on it.
Gorilla Glass is just more resistant to scratches than standard glass. Also, one other special feature: if the Glass does shatter, you won't have a lot of glass flying around your head (like what happens with normal glass).
Well, it's quite a soft metal right? A soft metal can be very hard, while a hard metal can be very soft.I have a titanium key too! Crap! Lol
Image
Oddly enough notice its worn out a bit? It's by far harder then the rest of my keys and the lock cylinder on my car.
Friction? Excessive force? Dunno, I understand the hardness scale but there seems like there's more too it.
When I shoot hardened steel targets pistol rounds only take the paint off. Rifle rounds can leave significant damage.
Gorilla Glass, on the hardness scale, has a hardness of 6+ - 7. (there is some dispute about this, as some have claimed it is a 9. But the frequency of reports of it being scratched makes me believe the number I heard in other forums about it being between 6 and 7.)
Anything harder than that will scratch the screen.
Iron, steel, nickel, lead, gold, silver or any medal are softer (1-5) than gorilla glass, so they should not scratch the glass.
On the other hand, sand contains quartz and it could scratch gorilla glass, for example when sand is in your pockets (after a walk on the beach).
One more thing:
a common misconception is: 'make something sharp and it will scratch'. it's wrong. you can make your fingernail or your key as sharp as possible, it is still softer than the glass and it will not scratch.
So, no, keys won't scratch it (steel), but anything harder than 7 on the scale will with no problem. So anybody that has no scratches obviously hasn't made contact to the screen with anything harder than a 7 on this scale.
Hardness Substance or mineral
0.20.3 caesium, rubidium
0.50.6 lithium, sodium, potassium
1 talc
1.5 gallium, strontium, indium, tin, barium, thallium, lead, graphite
2 hexagonal boron nitride,[10] calcium, selenium, cadmium, sulfur, tellurium, bismuth
2.5 to 3 magnesium, gold, silver, aluminium, zinc, lanthanum, cerium, Jet_(lignite) (lignite)
3 calcite, copper, arsenic, antimony, thorium, dentin
4 fluorite, iron, nickel
4 to 4.5 platinum, steel
5 apatite, cobalt, zirconium, palladium, tooth enamel, obsidian (volcanic glass)
5.5 beryllium, molybdenum, hafnium
6 orthoclase, titanium, manganese, germanium, niobium, rhodium, uranium
6 to 7 glass, fused quartz, iron pyrite, silicon, ruthenium, iridium, tantalum, opal
7 quartz, vanadium, osmium, rhenium
7.5 to 8 hardened steel, tungsten, emerald, spinel
8 topaz, cubic zirconia
8.5 chrysoberyl, chromium, silicon nitride
9-9.5 corundum, silicon carbide (carborundum), tungsten carbide, titanium carbide, stishovite
9.510 rhenium diboride, tantalum carbide, titanium diboride, boron nitride, boron [11][12][13]
10 diamond
>10 nanocrystalline diamond (hyperdiamond, ultrahard fullerite)
As always (same as it for any device), it's a matter of personal preference. Quantify "tough enough". It's scratch resistant but it's not unscratchable. You have to make the call based on your preference. You have to take whatever precautions you're willing to take. We can't tell you that. Some use screen protectors. Some do not.Is the screen on the iPhone 5 (gorilla glass 2.0) resistant enough to every day use or is a screen protector necessary.
It's personal preference for both. What you consider "good use" or "waste" is your subjective preference. The next person's can and will vary. You can't dictate what others will or will not worry about based on your preference. Further, "never seen" != "does not exist" despite what many seem to think.I have never seen a good use for screen protectors on an iPhone. Ever.
The only thing you have to worry about is a bad fall that will crack the screen. And guess what...no screen protector will protect against that.
Some people use cases, some don't. That's personal preference and you can go either way. But whichever way you go, screen protectors are just a big waste of time and money.
No, hardness matters. Force and sharpness do not. The material has to be harder than the Gorilla Glass to scratch it. You can certainly crack it with enough force but scratching it requires a harder material.Also, it does matter how much force you put into it. I bet a metal like titanium can still scratch the screen if you put a lot of force on it.
Screen protectors aren't anything new. They've been around for a long time whether you noticed them or not.I remember my first Nokia bar style phone, 2 lgs and my Razr all had plastic screens. People never had the need to use screen protectors then, but now everybody is becoming so sensitive and are worried about GLASS scratching.
Gorilla Glass, on the hardness scale, has a hardness of 6+ - 7. (there is some dispute about this, as some have claimed it is a 9. But the frequency of reports of it being scratched makes me believe the number I heard in other forums about it being between 6 and 7.)
Anything harder than that will scratch the screen.
Iron, steel, nickel, lead, gold, silver or any medal are softer (1-5) than gorilla glass, so they should not scratch the glass.
On the other hand, sand contains quartz and it could scratch gorilla glass, for example when sand is in your pockets (after a walk on the beach).
One more thing:
a common misconception is: 'make something sharp and it will scratch'. it's wrong. you can make your fingernail or your key as sharp as possible, it is still softer than the glass and it will not scratch.
So, no, keys won't scratch it (steel), but anything harder than 7 on the scale will with no problem. So anybody that has no scratches obviously hasn't made contact to the screen with anything harder than a 7 on this scale.
Hardness Substance or mineral
0.20.3 caesium, rubidium
0.50.6 lithium, sodium, potassium
1 talc
1.5 gallium, strontium, indium, tin, barium, thallium, lead, graphite
2 hexagonal boron nitride,[10] calcium, selenium, cadmium, sulfur, tellurium, bismuth
2.5 to 3 magnesium, gold, silver, aluminium, zinc, lanthanum, cerium, Jet_(lignite) (lignite)
3 calcite, copper, arsenic, antimony, thorium, dentin
4 fluorite, iron, nickel
4 to 4.5 platinum, steel
5 apatite, cobalt, zirconium, palladium, tooth enamel, obsidian (volcanic glass)
5.5 beryllium, molybdenum, hafnium
6 orthoclase, titanium, manganese, germanium, niobium, rhodium, uranium
6 to 7 glass, fused quartz, iron pyrite, silicon, ruthenium, iridium, tantalum, opal
7 quartz, vanadium, osmium, rhenium
7.5 to 8 hardened steel, tungsten, emerald, spinel
8 topaz, cubic zirconia
8.5 chrysoberyl, chromium, silicon nitride
9-9.5 corundum, silicon carbide (carborundum), tungsten carbide, titanium carbide, stishovite
9.510 rhenium diboride, tantalum carbide, titanium diboride, boron nitride, boron [11][12][13]
10 diamond
>10 nanocrystalline diamond (hyperdiamond, ultrahard fullerite)
You appear to be far too intelligent for this forum.
I hope you stick around.
That post was a copy-paste of http://forum.xda-developers.com/showthread.php?p=16654351
and the source of the hardness scale table is http://www.clirik.com/comnews/428.html
That post was a copy-paste of http://forum.xda-developers.com/showthread.php?p=16654351
and the source of the hardness scale table is http://www.clirik.com/comnews/428.html
Ha ha, never claimed credit for it, though.
Still, it works.
You could of pasted the source link and put the full post post in quote tags. Now you just look sad because the way it was worded.