Shortlist this SUPFINE case if you own a Galaxy S26 Ultra and want an inexpensive magnetic case with a screen protector in the box. The Black version, ASIN B0GDDHQ7KJ, was $9.99 when we checked Amazon on October 7, 2026. Its hard back and flexible frame suit a buyer looking for a conventional case without a built-in stand. If you use the S Pen heavily, make a returnable purchase and check it with your magnetic accessories before committing to the setup.

SUPFINE was No. 13 in the Cell Phone Basic Cases Best Sellers list during that check. This is a current ranking snapshot, not a unit-sales total. Our recommendation comes from the listed construction, price and accessory use case. PhoneGearDaily has not handled this case or measured its magnetic hold, charging speed or drop protection.

Buy the S26 Ultra version

The reviewed Amazon listing specifies the 6.9-inch Samsung Galaxy S26 Ultra. It describes a flexible TPU frame around a hard polycarbonate back with a matte coating. TPU is the flexible plastic around the edges; polycarbonate forms the harder rear panel. The translucent finish is a different look from a fully clear case, so choose it for that muted appearance rather than expecting an unobstructed view of the phone's color.

Do not use screen size as the fit check. The complete model name needs to match, including Ultra. The listing's compatibility statement does not establish fit for the standard S26, S26+ or an older Ultra. It also does not supply a measurement we can use to rank this case's thickness against another brand.

The seller describes access to ports, controls and cameras. After fitting it, check the S Pen opening and your usual USB-C plug before discarding the packaging. An accessory you use every day is a better fit check than a photograph of an empty case.

Magnetic attachment is the reason to choose it

SUPFINE advertises built-in magnets and wireless-charging compatibility. That makes it a candidate for a magnetic desk or car setup, provided your particular accessory works with it. We did not find a verified holding-force measurement or charging-speed result for this exact listing in the sources we read. We would not convert the seller's strong-magnet wording into a promise about a heavy battery pack or a rough road.

One Amazon owner account offers a narrower piece of evidence. George's verified-purchase review, dated August 31, 2026, explicitly mentions an S26 Ultra and reports satisfactory button operation and magnetic attachment. The captured review did not identify the color or accessories used. That supports including fit and attachment in a shortlist discussion, but it cannot establish how the Black variant works with your charger.

The same review feed included reports about white corners and a gold finish. We have not treated those as evidence of wear on this Black case. Amazon's displayed rating total also covers more than we can resolve to the exact variant, so it is not a reliability score for this purchase.

Check the S Pen with the accessories attached

Samsung warns on its own Galaxy S26 Ultra magnetic-case page that magnetic accessories can interfere with the S Pen and other functions, including autofocus, the compass, wireless charging and NFC. This warning concerns Samsung's product and accessory use; it is not a test result for SUPFINE. It gives an S Pen user a specific reason to check the complete setup.

Before installing the included glass, try writing across a blank note with the case fitted. Repeat with your magnetic accessory attached, then detached. If a patch of the screen stops responding, remove the case and compare again. Samsung's S Pen troubleshooting guidance recommends removing magnetic covers when investigating missed input. We have no evidence that every SUPFINE unit causes this problem, or that every magnetic accessory is unaffected.

A buyer who relies on handwritten notes throughout the day may reasonably choose a nonmagnetic case to avoid adding that compatibility question. A buyer who rarely uses the pen may place more value on magnetic mounting. Neither choice needs a claim that this case has passed a test we have not performed.

Treat the included glass as a separate purchase decision

The listing includes a tempered-glass screen protector and advertises a thickness of 0.33 mm, 99% clarity, an oleophobic coating and 9H hardness. Those are seller specifications. They do not establish fingerprint-reader performance or S Pen feel after installation, and the hardness description does not tell us whether the phone's display will survive a fall.

If your current protector already works well, there is no need to replace it merely because another one comes in the box. Keeping the included piece as a spare also lets you assess the case on its own. If you do install it, check pen response again: Samsung lists screen-protector thickness and surface irregularities among possible causes of inconsistent S Pen input. The magnetic case and glass should be checked separately so you know which change affected the phone.

What the protection claim leaves unanswered

SUPFINE says the case passed drop tests up to 10 feet. We did not verify a report showing the test surface, number of drops or condition of the phone afterward. The figure belongs to the seller's claim, not to PhoneGearDaily's testing. It does not justify calling this case safer than a thicker alternative.

The matte coating is also advertised as resisting fingerprints and scratches. We can describe that intended finish, but we cannot say how it looks after months in a pocket. If long-term finish wear or independently documented impact protection is your main buying criterion, the evidence gathered here is too limited to make SUPFINE a confident recommendation on that basis.

At the observed $9.99, the useful proposition is a magnetic S26 Ultra case plus a spare glass protector. Check the current Black/S26 Ultra selection, price and return terms at the ordinary Amazon product link. For other phones, start with our case index by model; the FNTCASE Galaxy A17/A16 review covers a different fit and a different charging limitation.

Method: seller specifications and manufacturer guidance. PhoneGearDaily has not physically tested the case. Read our sources, testing and image policy.