For most S24 Ultra owners: S24 Ultra-specific tempered glass with full adhesive, which keeps the S Pen feeling like the bare screen. If you write or sketch with the S Pen a lot, a matte film adds paper-like drag but softens the display.
The first flat Ultra
Before the S24 Ultra, Samsung's Ultras had curved screen edges, which made protectors notoriously difficult. The S24 Ultra switched to a flat 6.8-inch panel, so ordinary tempered glass fits it well. If you're upgrading from an S22 or S23 Ultra, forget the old workarounds: UV-cured liquid glass and edge-only adhesive are no longer needed.
S Pen: glass or film?
| Protector | S Pen feel | Display | S Pen tips |
|---|---|---|---|
| Tempered glass | Smooth, like the bare screen | Full clarity | Normal tip wear |
| Matte / paper-feel film | More drag, pencil-like control | Softer, grainier image | Tips wear faster |
| Clear film | Slightly softer than glass | Clear | Normal |
People who mostly tap and occasionally annotate a screenshot should use glass. Paper-feel film is for people who write notes by hand every day. It works better on a large tablet than a phone, but some Ultra owners swear by it. If you go matte, keep spare S Pen tips: the textured surface wears them down faster.
Gorilla Armor and glare
The S24 Ultra was the first phone with Corning's anti-reflective Gorilla Armor. A glossy protector sits on top and brings reflections back. That's the cost of adding protection, not a fault in the protector.
Fingerprint sensor
Full adhesive, then delete and re-register fingerprints (Settings → Security and privacy → Biometrics → Fingerprints). See fingerprint problems if it's still slow.
What to buy
Questions people ask
Does a screen protector affect the S Pen on the S24 Ultra?
The S Pen works through both glass and film. Glass keeps the smooth bare-screen feel; matte film adds drag and wears tips faster.
Do S23 Ultra protectors fit the S24 Ultra?
No. The S23 Ultra had a curved display; the S24 Ultra's is flat.