This hidden Samsung Galaxy Note 9 feature is genius and every phone should have it

This hidden Samsung Galaxy Note 9 feature is genius and every phone should have it
Okay, we might sound a bit excited, but forgive us as if this feature is indeed what Samsung says it is, it could improve the way millions of people take photos.

So yes, we were fascinated when we read about a simple new feature in the camera section of the Galaxy Note 9. The feature is called "lens smudge". Get it?

Okay, if you don't get the idea just by reading the name of a new feature, let us tell you that Samsung seems to have somehow figured out a way to tell you when you have smudges all over that camera lens and now officially warns you to clean the lens before you take a picture.

How does it do it? Magic, of course. Also... we have absolutely no idea. We have reached out to Samsung for an explanation, though, and will update this as soon as we get an answer.

Since we don't know the exact workings behind this magic and since Samsung highlights this as "Lens Smudge Flaw Detection" we do assume that there is some actual detective work being done and it's not just a nice reminder that pops up every once in a while (like it already does on current Samsung phones). Samsung also highlights "flaw detection" in the specs page for the Galaxy Note 9 alongside the new Scene Detection as brand new features. Lens Smudge will notify the user of a smudge on the camera once in a 24-hour period. Still, we don't find an answer to how exactly this feature works and we will wait for Samsung's answer on this to actually understand it.

If this is indeed the smart lens smudge detection that Samsung suggests, well... woohoo! And yes, also yawn, this probably seems like a boring thing for those common-sense people that always ensure their camera lens is clean and that are power users, but you would be surprised to learn how many people we see everyday that keep on snapping photos on their phones with a camera stained with oily fingerprints. And yes, it could be the front, or the rear camera, but a smudged camera almost seems more like the norm for the average user rather than an exception.

So thank you, Samsung, on behalf of the average user for figuring this out! Now, if only more phone makers figured out how to do this...

Related phones

Galaxy Note 9
  • Display 6.4" 1440 x 2960 pixels
  • Camera 12 MP / 8 MP front
  • Processor Qualcomm Snapdragon 845, Octa-core, 2800 MHz
  • Storage 128 GB + microSDXC
  • Battery 4000 mAh(29h 3G talk time)



1. Mreveryphone

Posts: 1849; Member since: Apr 22, 2014


13. danny_a2005

Posts: 365; Member since: Oct 06, 2011

Whoever made this article has not used another android phone in the past, The pixel 2 xl has this feature, launched almost one year ago. -_-

17. RebelwithoutaClue unregistered

I have googled for this feature on the Pixel 2XL you are talking about, but couldn't find a thing about it. Do you have a link for me on this feature? Like to read about it, sounds cool.

20. danny_a2005

Posts: 365; Member since: Oct 06, 2011

Search in Google, "Google camera dirty lens warning" and how to turn it on/off. It is on by default by the way.

22. RebelwithoutaClue unregistered

Thanks :) Found it

24. gigicoaste

Posts: 461; Member since: Feb 21, 2016

I have on my Note 8 same feature! PA just woke up!

2. worldpeace

Posts: 3135; Member since: Apr 15, 2016

Note 10's killer feature will be automatic camera wiper.

21. Trex95

Posts: 2383; Member since: Mar 03, 2013


3. Alcyone

Posts: 566; Member since: May 10, 2018

Someone is missing a chromosome. That feature has been out since at least the S9. My factory unlocked S9+ has it. Guess someone hasn't used a S9 lately..

4. nepalisherpa

Posts: 338; Member since: Jul 17, 2015

Even Note 8 has this feature.

7. Victor.H

Posts: 1098; Member since: May 27, 2011

Thanks for your friendly and pleasant observation, but my logic was that since this is listed as "Smart Lens Flaw Detection" there might be some detection going on. Previous Notes and Galaxies only popped up a notification at random times (but maybe that was my experience with this?) Anyway, we have reached out to Samsung for a comment on this and will update when we get an answer!

10. cmdacos

Posts: 4319; Member since: Nov 01, 2016

Wasn't random in the past.

18. strategic_developer

Posts: 1627; Member since: Jul 17, 2018

Yes other Galaxy device do have a notification for such, but I doubt its using SLFD, which yes does sound like this is some type of hardware assist method for knowing the lens could be dirty. I think the heroes are all in such a hurry to claim there phone does the same thing, they aren't looking at the fact, that something about it is different.

11. BullDozer

Posts: 159; Member since: Dec 18, 2015

Remember this is PhoneArena. Little bit late with everything. Imagine headlines if iphone have this some day.

5. Eric7779 unregistered

Was also on the Note 8.

6. maherk

Posts: 7011; Member since: Feb 10, 2012

It's a reminder that pops up whether your camera lens is smudged or not, and it's been presented on Galaxy phones since the S8.

19. strategic_developer

Posts: 1627; Member since: Jul 17, 2018

Which is why I think this is something totally different and more accurate. On the older phones, this notification is random and was put their because the FPS is right next to it.

9. Rampage_Taco

Posts: 1109; Member since: Jan 17, 2017

Everyone here saying they've had this feature yet my Note 8 doesn't tell me when someone blinked in a photograph

14. YeahYeah

Posts: 251; Member since: Mar 16, 2016

My S8 does this. The feature is very old

15. Lememurilo

Posts: 50; Member since: Oct 13, 2014

looks like Victor isn't having a good day...

16. srgonu

Posts: 566; Member since: Feb 13, 2012

Victor knows little about non-apple stuff. He should stick with what he knows.

23. Laki25

Posts: 4; Member since: Sep 16, 2013

This feature is also available on Galaxy S9/S9+

26. hesham_personal

Posts: 7; Member since: Oct 19, 2015

this feature is on Note 8 since long.

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