It happened to me again last week: I dropped my iPhone 17 Pro Max, no case with screen protection on it — and instantly got a crack running clean across the screen protector. Anyone who’s ever used a screen protector probably knows this: one drop on the edge, and the glass splits completely. Shortly after, I happened to come across an ad from Smart Engineered for a screen protector called „No Glas,“ which claims it simply doesn’t break. I had to test that claim myself — drop test on concrete included, plus a scratch test against a ceramic tile.
![JDHDL 3 Pack Flexible Film for iPhone 17 Screen Protector[NOT GLASS], Non-breakable Soft TPU Hydrogel Film for iPhone 17, Invisible Thin, Scratch Resistant, Self-Healing](https://m.media-amazon.com/images/I/41-Ug3oEDML._SL160_.jpg)
- 【Anti-Scratch&Never Cracks】- This is a NON-GLASS iPhone 17 screen protector made of flexible high-density nano TPU. It offers the same anti-scratch protection as tempered glass, preventing your screen from getting scratched or cracked when dropped, but the difference is that it never cracks so you don't have to keep replacing it.
- 【Ultra-Thin as Invisible】- The iPhone 17 Screen Protector is only 1/5 thickness of a tempered glass film, you can barely feel it on your phone like it's invisible. Thinner thickness also provides better touch sensitivity, especially when playing games.
- 【Scratch Auto-Repair】- The screen protector 17 has slow rebound technology and self-healing power. Minor scratches and bubbles will automatically be repaired within 24 hours. (If there are bubbles after installation, please do not tear off and wait for 24h).
- 【Improved Touch Sensitivity】The extremely thin thickness maximizes the touch sensitivity of the original iPhone 17 screen, especially when playing games, so this would be a perfect choice for mobile gamers.
- 【Easy Installation】Anyone can finish the installation in less than 3 minutes with the help of the specially designed locater and cleaning kit, and no bubbles! Included: 3 Pack TPU Screen Protector for iPhone 17(NOT Glass), Screen Protector Locator, Cleaning Kit.
What Exactly Is „No Glas“?
Despite the name, this isn’t classic tempered glass — it’s a thick hybrid film, similar in concept to what Rhinoshield uses in its own screen protection line. The logic: a film can’t shatter, because it isn’t glass in the first place. The box included one screen protector, a wet wipe and a dry cloth, a small dust-removal sticker, and instructions. Current price: around 27 euros.
Installation
Installation was straightforward: clean the display thoroughly with the alcohol wipe, run the dust sticker over it, slot the film into the guide frame and let it click into place, peel off the top protective layer, and press down. Two small air bubbles showed up near the bottom edge, but they pushed out easily with a fingernail. What stood out positively was how generously the film is cut — it reaches all the way into the corners instead of leaving a strip of display uncovered near the edges, like a lot of cheaper screen protectors do. After installation, it felt genuinely good: swiping was smooth, and Face ID worked instantly without any issues.
The Drop Test: Does It Actually Hold Up?
Now for the interesting part. I dropped the iPhone onto a concrete slab three times — I’d protected the frame beforehand with a bit of tape, since testing completely without a case would otherwise wreck the frame immediately. The frame itself still looked great afterward.
The display with the „No Glas“ film showed clear, deep dents around the impact points. But — and this is the key point — the film neither cracked nor shattered, the way a normal screen protector guaranteed would after a drop like that. You could keep using the phone without any real issue, even though the dents definitely hurt the look, and honestly I’d still have replaced it at that point purely for cosmetic reasons.
Drop test verdict: passed. It genuinely doesn’t break — it just doesn’t look pretty afterward.
The Scratch Test: The Weak Spot
For the second test, I brought out my ceramic tile — nothing has beaten it yet, not even a sapphire screen protector priced at 80–90 euros that I tested a while back. With „No Glas,“ I barely had to apply any pressure at all: one rub across the surface, and the film was visibly scratched. I could even scratch letters into it with a fingernail that stayed permanently visible. By comparison, a real tempered screen protector needed noticeably more force before I could produce a single scratch.
That’s the clear trade-off of the hybrid-film approach: what makes it shatterproof also makes it far less scratch-resistant. If you often carry your phone loose with keys or other objects in your pocket, that’s worth factoring in.
My Verdict
„No Glas“ delivers exactly what the name promises: it doesn’t break, because it simply isn’t glass. The concrete drop test confirmed that convincingly. Scratch resistance, though, is basically nonexistent — here it clearly loses against classic tempered glass.
At around 27 euros for a single film, I honestly find the product a bit overpriced, especially considering the box includes only one piece rather than two or three spares like some competitors offer. For anyone who drops their phone often and can live with cosmetic dents, it’s still an interesting alternative to a classic screen protector. But if scratch resistance is your priority, a normal tempered screen protector is the better choice.
One small side note to close out: it wasn’t the display that ended up damaged during my test, but the frame of my iPhone, which picked up a dent — a good reminder that a solid case matters at least as much as the screen protector itself. If you’re still shopping for one, check out my best iPhone 17 Pro cases on the market for the most reliable options right now. And if you’d rather stick with classic, scratch-resistant tempered glass instead, my breakdown of which iPhone 17 Pro screen protector actually survives daily use is worth a look too.