Composition & Technique · 6 min read

How to Blur the Background on Any Samsung Galaxy

Four ways to blur the background on a Galaxy phone, from Portrait mode and the telephoto lens to close-ups and editing in Gallery or Snapseed afterwards.

BySamsung Photography Academy Editorial Team· · Updated
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Portrait mode blurs the background using software processing. Alternatively, using your Galaxy’s telephoto camera or getting as close to your subject as possible can blur the background optically. And finally, you can always add background blur in post-processing using Gallery or a free photo editor app. Which is best depends on your Galaxy phone, your subject, and how much space you have to work with.

On Samsung Galaxy phones, you can get a blurred background by taking a picture in Portrait mode (which works for pets, too), zooming in (3x or 5x), or getting up close with the main camera (best for small objects). When zooming, your subject should ideally be a few metres away from whatever’s behind them. Afterwards, you can edit the level of blur in Gallery (only works for Portrait shots), or use the Lens Blur effect in Snapseed (works on any pic).
Illustration of a golden retriever sitting in an autumn park, with the trees behind it softly blurred

Four ways to blur the background compared

MethodWorks onBest forWatch out for
Portrait modeMost Galaxy phones, including the A seriesPeople and pets at close range, indoors and outEdges of hair and glasses, and thin objects
Telephoto lens (3x or 5x)Phones with a telephoto cameraPortraits and details from a few metres awayNeeds space and light, and the S26 Ultra's 5x needs about 80cm
Getting closeEvery GalaxyFood, flowers and small objectsThe background must be well behind the subject
Editing afterwardsPortrait photos in Gallery, any photo in SnapseedShots you've already takenSoftware edges, especially around hair

Blur created by a lens and shooting distance is typically going to be the most natural looking, as it will increase smoothly with distance away from the subject. Blur created in software is faster, and can be done in more cramped shooting situations. In our bokeh explainer we covered the optics of both cases, for those interested in the theory. Our Galaxy vs real camera comparison demonstrates the increased blur that would result from using a full-frame camera, for the same framing.

Portrait mode

Illustration of a smiling woman holding a coffee cup in a café, the room behind her softly out of focus

Select Portrait mode from the shooting mode list. Select the Portrait effect icon and select Blur, then move the slider to adjust the level of blur.

Portrait mode digitally separates the subject from the background and applies a blur effect to the background. Wait until Ready is displayed before taking a photo.

Samsung’s S26 guide says the Portrait effect may not be applied or may not perform optimally in any of the following situations: insufficient lighting, the subject is moving, the subject is thin or transparent, or the subject and background have similar colours.

Illustration of a border collie on a garden lawn behind the real One UI 9 Portrait mode controls, showing the Blur effect selected and the Effect strength slider at 7
Real camera controls from a Galaxy S25 Ultra running One UI 9 (November 2026), shown over an illustration of a border collie on a garden lawn.

According to SamMobile, Virtual Aperture is now in Portrait mode on the Galaxy S26 Ultra (on the S25 series, it’s in the Labs menu in Expert RAW), letting you dial in the amount of blur for pets and people shots in the regular camera app (in Expert RAW, you can simulate anything from f/1.4 to f/16). Our Portrait mode guide covers the other effects and the best distances.

We recommend not cranking it all the way up, as any imperfections in the depth map will be more noticeable, and it just doesn’t look as natural as a mild setting.

Use the telephoto lens for optical blur

Illustration of a red rose with water droplets in front of a softly blurred garden path

Move away from your subject until they’re nicely framed using 3x zoom (5x for Ultra phones), since a longer lens magnifies the background and makes it look softer. Look for backgrounds that are a good few metres behind your subject, as hedges will still be reasonably defined a metre or so away, but trees ten metres away will be reduced to smudges.

Different cameras have different closest focusing distances, and Samsung advises at least 80cm with the Galaxy S26 Ultra’s 5x camera (though SamMobile reports it can focus as close as 52cm) and 30cm with the S25 Ultra’s 5x, for example. Different aperture shapes affect out-of-focus highlights, and the S26 Ultra’s 5x camera has a round aperture, so expect circles or ovals. Our S26 Ultra zoom guide lists working distances for each lens.

Telephoto cameras let in less light than main cameras, and phones sometimes decide to use a crop from the main camera instead if there’s not enough light or you’re too close to your subject. You can prevent this happening by turning off Auto lens switching in Camera Assistant, but you might want to consider adding some extra light instead (or as well).

Get close to small subjects

Illustration of a strawberry on a white plate, with the checked picnic blanket behind it out of focus

The closer you get to your subject the more the blur increases, allowing even the wider main camera to separate a flower (or a cup of coffee, etc.) from the background. Get the phone a bit away from the object and tap on it to make sure that it’s in focus. Also, make sure that the background is far enough away from your subject – if the wall is right behind your cup of coffee, it’s not going to get much blurrier however close you hold your phone.

On the S26 Ultra, Focus enhancer (flower icon) automatically uses the ultra-wide camera for close-range shots so that it can keep your subject in focus, according to Samsung’s guide.

In Food mode, everything inside an adjustable frame stays in focus and the rest is blurred, according to Samsung’s S26 guide. You can move and resize the frame to highlight your subject. Food mode is also available on the Galaxy A57. For close-up work, our food photography guide and macro guide go further.

Change or add blur after the shot

According to Samsung’s S26 guide, Portrait mode gives you the ability to add a background effect and edit it later in Gallery. Depending on the version of One UI you’re using, this feature may be called something different or be located elsewhere.

If you took your shot using Photo mode, you may be able to get similar results using the Lens Blur tool in the free Snapseed app, which Google describes as object-aware bokeh to help create a nice soft background effect. There’s also a newer Depth Lens Blur feature that Google says produces more natural-looking blur with depth. Zoom in to check edges, particularly around hair and ears, and dial back the amount of blur if there’s an obvious halo around the subject.

Fixing blur that looks fake

  • Hair looks cut out. Lower the blur strength and pick a background that contrasts with the hair, since Samsung notes the effect can fail when subject and background are a similar colour.
  • According to Samsung, Portrait mode may not perform well on transparent and/or thin objects (for example glasses or a glass of water). Try the telephoto lens instead.
  • If Ready never appears, try shooting in better lighting conditions. According to Samsung, Portrait mode requires enough light to work. Check the distance between you and your subject.
  • If nothing in the background blurs, try to move your subject away from the background (towards you) or move the background away from your subject.
  • Samsung says Portrait mode may not always deliver optimal results on uniform (plain) subjects/backgrounds.
  • Bright spots look smeared. Wipe the lens, since a fingerprint spreads highlights across the frame, as our blurry camera guide explains.
How do I blur the background on a Samsung photo after taking it?+
If the shot was taken using Portrait mode, Samsung says that the background effect can be changed after the shot has been taken, by simply opening the image in Gallery, where you’ll see an option to make changes. Other images can have a similar effect added after the fact using an app like the free Snapseed, which has a lens blur effect.
Why won't my Samsung blur the background?+
For Portrait mode, sufficient lighting and good subject-background separation are required. When Portrait mode is selected, the word Ready is displayed if there is enough light and subject-background separation. If Ready is not displayed, improve the lighting conditions or increase the distance between the subject and the background.
Can I blur the background without Portrait mode?+
For blurry backgrounds use the telephoto (zoomed in) and stand back from your subject (with the background as far behind it as possible). Also, when you take close-ups of small things the background will be blurry even using the main (non-zoomed) camera setting.
Which Samsung lens gives the best background blur?+
On a phone with a telephoto, portraits taken at typical portrait distances look better with a 3x or 5x since the DOF blur is optical and more natural looking. On smaller objects, the DOF blur you get with the main camera can actually be stronger the closer you get.
Samsung Photography Academy breaks down the finer points of photography into 60+ short 5-minute lessons, all tailored specifically to Galaxy phones. One such tip? Practise picturing the background before you press the shutter button. Samsung Photography Academy is backed by a 60-day money-back guarantee.