Samsung S20 Ultra Screen Protector: What Is Still Sold
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 safest buy for a Galaxy S20 Ultra today is the ZAGG InvisibleShield Ultra Clear+. It is a film, it is in stock on ZAGG’s own store at about $30, and ZAGG says in plain words that it works with this phone’s fingerprint reader. If you would sooner have glass, Eiger still sells a curved one for the S20 Ultra.
That is most of what is left. We went through the makers’ own stores, and the names that filled lists like this one in 2020 have largely dropped the phone. Whitestone Dome’s store is closed for a rebuild. Spigen, OtterBox and PanzerGlass list no protector for it.
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Why this phone is hard to protect
There are two reasons, and both 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. The table below is built around that.
What is still sold
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 |
The films
ZAGG InvisibleShield Ultra Clear+
ZAGG still keeps a page of Galaxy S20 Ultra accessories, and this 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
ZAGG InvisibleShield Ultra VisionGuard+
The same idea with a layer that ZAGG says filters 40% of the most intense blue light, for about $15 more. 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.
ArmorSuit MilitaryShield
The cheapest of the lot: about $13 for two on ArmorSuit’s own store, in stock. It is a film that 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
The glass
Eiger Mountain Glass Ultra+ 3D
Eiger is the only maker we found with tempered glass for the S20 Ultra in stock on its own store, at about £17. The glass is curved to match the screen. 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 Case Compatible Glass
Olixar’s 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.
Glass fixed with UV glue
Our 2020 list had Whitestone Dome Glass on it, a tempered glass 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.
What has gone
- Spigen: still sells S20 cases, but the only screen protector we found on its store for the family is a sold-out film for the S20+.
- OtterBox: its S20 Ultra protector page now returns an error, and a search of its store finds nothing for the phone.
- PanzerGlass: its only S20 protector is for the S20 FE. The privacy glass on our old list is gone.
- amFilm: 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 protectors: none of the makers above lists one for the S20 Ultra. Eiger adds that its privacy glass is the one type it does not rate for fingerprint readers.
Fitting one and keeping the fingerprint reader
These steps draw on Samsung’s support pages.
- 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.
- Switch on Touch sensitivity. It is 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. Removing and re-adding 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.
Which to pick
- You want the reader to keep working: ZAGG InvisibleShield Ultra Clear+. ZAGG is the only maker with stock that says so for this exact phone on its own page.
- You want to spend as little as possible: ArmorSuit MilitaryShield, case-friendly cut.
- You want glass: Eiger Mountain Glass Ultra+ 3D, bought from Eiger.
One more thing before you spend much on this phone. Samsung has stopped updating the S20 family; we cover what that means in the Galaxy S20 today. If you are shopping for a replacement, see our lists of phones that still have curved screens and phones with in-display fingerprint readers.
Quick answers
Does the S20 Ultra come with a screen protector?
Samsung says some of its phones ship with a plastic protector already fitted, and its S20 page notes that the protective film in the box varies by country. After six years, assume it needs replacing.
Why does the fingerprint sensor not work with my screen protector?
The S20 Ultra’s reader works through the screen with an ultrasonic pulse, and Samsung warns that third-party protectors can interfere with it. Remove and re-add your fingerprints, and if that fails, change the protector.
Can you use tempered glass on the S20 Ultra?
Yes, if it is curved glass made for this phone. Eiger has one in stock, and Olixar’s is waiting for stock.
Is there a privacy screen protector for the S20 Ultra?
Not from any maker we could check. Amazon lists privacy films from smaller sellers, and their fingerprint claims are unverified.
