Samsung S20 Ultra Screen Protectors You Can Still Buy
Three makers still have a Galaxy S20 Ultra screen protector in stock: two sell film, one sells curved glass. What each says about the fingerprint reader.
The ZAGG InvisibleShield Ultra Clear+ is the safest buy for a Galaxy S20 Ultra. It is a film, it is in stock on ZAGG’s own store at about $30, and ZAGG is the only maker with stock that says on its own page that it works with this exact phone’s fingerprint reader. For the lowest price, take the ArmorSuit MilitaryShield in its case-friendly cut. For glass, buy the Eiger Mountain Glass Ultra+ 3D from Eiger.
That is most of what is left. The names that filled buying lists when the phone was new have largely dropped it. Whitestone Dome’s store is closed for a rebuild, and Spigen, OtterBox and PanzerGlass list no protector for it.
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Why this phone is hard to protect
Both reasons are on Samsung’s own pages. The 6.9-inch screen bends at the sides. Samsung’s product page for the S20 describes the curve of the display, and flat glass, as the protector maker Eiger puts it, fits only the flat part of a screen.
The fingerprint reader is under the screen. Samsung calls it Ultrasonic Fingerprint and says it sends a pulse to read the ridges and valleys of your finger. Whatever you stick on the screen sits between that sensor and your skin.
Samsung does not hide what follows from that. Its US spec sheet for the S20 says third-party screen protectors can interfere with the reader, tells owners not to register a fingerprint through one, and says to confirm that a protector is compatible before fitting it. Its fingerprint support page adds that fitting a different protector may affect recognition. So the question to ask of any protector is whether its maker says, for this phone, that the reader still works.
Still on sale for the S20 Ultra
Prices are the makers’ own, rounded.
| Protector | Type | Price | Fingerprint reader |
|---|---|---|---|
| ZAGG InvisibleShield Ultra Clear+ | Self-healing film | about $30 | ZAGG says fully compatible |
| ZAGG InvisibleShield Ultra VisionGuard+ | Self-healing film with a blue light filter | about $45 | ZAGG says fully compatible |
| ArmorSuit MilitaryShield, pack of two | Self-healing film, fitted wet | about $13 | Not mentioned on ArmorSuit’s site |
| Eiger Mountain Glass Ultra+ 3D | Curved tempered glass | about £17 | Eiger says all its glass except the privacy kind works with fingerprint readers |
| Olixar Case Compatible Glass | Tempered glass | about $12 | Olixar says compatible; waiting for stock |
Self-healing film from ZAGG and ArmorSuit
ZAGG still keeps a page of Galaxy S20 Ultra accessories, and the Ultra Clear+ is the plain protector on it. It is not glass. ZAGG describes a glass-like surface on a material that heals minor scratches, says it fits curved screens, and states that it is fully compatible with Samsung’s in-display fingerprint reader. If it wears out or gets damaged, ZAGG says it will replace it for as long as you own the phone, and you pay shipping and handling. On Amazon, ZAGG’s own listing calls it a film and case friendly. ZAGG’s page for it has the details. ZAGG InvisibleShield Ultra Clear+ on Amazon
The Ultra VisionGuard+ is the same idea with a layer that ZAGG says filters 40% of the most intense blue light, for about $15 more, and ZAGG makes the same fingerprint claim for it. We would skip it. Samsung says the S20’s display already reduces blue light at the pixel level, so the extra money buys a second filter on top of the first.
The ArmorSuit MilitaryShield is the cheapest of the lot: about $13 for two on ArmorSuit’s own store, in stock. It goes on wet. The kit has a spray bottle, a squeegee and a cloth, and ArmorSuit warns against using too much of the spray on the phone. ArmorSuit says the film heals minor scratches over time, resists yellowing and carries a lifetime warranty. It sells a standard cut, a case-friendly cut and a matte case-friendly cut, all at the same price. If you use a case, take one of the case-friendly ones.
The gap is the fingerprint reader. ArmorSuit’s own page for the S20 Ultra does not mention it. The title of its Amazon listing says ultrasonic fingerprint compatible, with nothing more behind it. We would trust that less than ZAGG’s statement, though at this price a pack of two is a small risk. ArmorSuit MilitaryShield for Galaxy S20 Ultra on Amazon
Tempered glass for the S20 Ultra
It has to be curved glass made for this phone. Eiger Mountain Glass Ultra+ 3D is the one in stock on its maker’s own store, at about £17. Eiger describes it as aluminosilicate glass made for curved phones and says it is cut to work with most cases.
On the fingerprint reader, Eiger’s answer covers its whole range: all of its screen protectors except the privacy glass are compatible with fingerprint readers, optical or ultrasonic. That is a general statement, not one about this phone, so it carries less weight than ZAGG’s. Eiger also says that if you make a mistake fitting it within 30 days, it will send a replacement. It sells from its own site, priced in pounds.
Olixar’s Case Compatible Glass is sold by the retailer Mobile Fun, which still lists it for the S20 Ultra at about $12 but marks it as waiting for more stock. Olixar says it is compatible with the in-screen reader, and is frank about the conditions: you may have to register your fingerprints again after fitting it, and Touch sensitivity should be switched on. It also says the glass leaves room for a case. Worth a look if it comes back.
Whitestone Dome Glass is fixed with liquid adhesive that is cured under a UV light. We could not confirm that it is still made for the S20 Ultra. Whitestone’s own store shows a notice that it is being remodelled, and an Amazon search for it returned its Galaxy S25 Ultra protectors. Amazon does still carry UV-glue glass for the S20 Ultra from sellers we could not trace to a maker’s site. Treat a fingerprint claim in those listings as unproven.
Fitting one and keeping the fingerprint reader
- Do not put a new protector on top of an old one. Samsung says some phones come with a plastic protector already fitted, and it lists stacked films among the things that make a screen respond badly. Its S20 page notes that the protective film in the box varies by country. After six years, assume yours needs replacing.
- Switch on Touch sensitivity, under Settings, then Display. Samsung provides it for screens with a protector on.
- Fit it cleanly. Samsung lists dust, air bubbles and peeling edges as causes of poor touch response. Its advice is to remove, realign or replace the protector.
- If the reader stops recognising you, remove your fingerprints and add them again. That is on Samsung’s own troubleshooting list, and Olixar tells buyers to expect it. Samsung’s S20 spec sheet takes the stricter line that prints should not be registered through a third-party protector at all. If the reader still fails after you re-add them, take that as your answer and change the protector.
Brands that have dropped the S20 Ultra
Spigen still sells S20 cases, but the only screen protector on its store for the family is a sold-out film for the S20+. OtterBox’s S20 Ultra protector page now returns an error, and a search of its store finds nothing for the phone. PanzerGlass’s only S20 protector is for the S20 FE. amfilm.com is a holding page, and an Amazon search for the brand turned up a camera lens protector for the S20 Ultra but no screen protector.
Privacy screen protectors for the S20 Ultra
None of the makers above lists one. Eiger adds that its privacy glass is the only type it does not rate for fingerprint readers. Amazon lists privacy films from smaller sellers, and their fingerprint claims are unverified.
If you are replacing the S20 Ultra
Samsung has stopped updating the S20 family; we cover what that means in the Galaxy S20 today. See also our lists of phones that still have curved screens and phones with in-display fingerprint readers.
