The Spigen iPhone screen protector is a good choice if you are looking for a product that can be installed quickly and easily with optimal alignment, as well as having an extra sheet of film included in the box. However, if scratch protection is your primary concern, it is an inferior option. In fact, there appears to be a great deal of consensus among independent laboratory testers regarding the overall effectiveness of the installation tray (ie., GLAS.tR EZ Fit). There are conflicting opinions, however, when it comes to protection. In particular, Wirecutter’s testing of the iPhone 17 made Spigen’s GLAS.tR EZ Fit their number one choice, while Case Tester’s iPhone 18 Pro review found Spigen’s product to “fail” in terms of hardness.
This research is a buyer’s guide and is not intended to be a laboratory test conducted by Spigen. Rather, it provides information based on Spigen’s own claims and those from three independent testers, each of whom conducted hands-on tests using different generations of iPhones. The “Sensor Protected” and “Privacy” versions are completely different products with distinct catalog numbers. To ensure that you order the correct one for your specific iPhone, consult the reviewers’ findings in order to understand the conviction into which each product may fall and the context of any circumstances that may change it.
Is the Spigen iPhone screen protector worth it?
Yes, with caveats, it’s great for those who struggle with fitting a screen protector correctly to their phone. The $34.99 Sensor Protected pack will give you two screen protectors and the EZ Fit Kit (pricing verified 10/6/2026), but the independent tests on impact and scratch protection are not definitive, and the only hands-on testing done on the 18 was with another tester.
You are buying two things when you buy Spigen: the features Spigen promises (an alignment tray, tempered glass, and an extra sheet), and how the protector performs on your device (the fit, the clarity, the feel, and the level of protection). The first category is easy to evaluate. The second has to come from testing, and the testers don’t agree:
- Strongly positive. Wirecutter put protectors on three iPhone 17 models and called Spigen’s installation “the absolute best we’ve found.” It also found the glass “as clear and strong as any glass protector we’ve ever tested” (Wirecutter).
- Middling. MobileReviews EH tested an iPhone 16 version and ranked it #7 of more than 20 overall. It praised the design and installation but ranked it #16 for protection.
- Mixed on the current phone. On the iPhone 18 Pro, Case Tester found it had “the most relaxed installation in the test.” The same sample scratched on a porcelain tile and broke when bent.
Looking at both categories together, it’s easy to see why the Spigen would be ideal for someone who likes making sure their screen protector goes on perfectly every time, someone who isn’t planning on using a premium glass with very high scratch resistance, and someone who is buying a case to match. Conversely, if scratch hardness is your most important consideration, then it may be harder to say that Spigen is the best choice for iPhone 18 Pro users. The six-protector test done by Case Tester for the iPhone 18 Pro selected a different winner as the best choice for iPhone 18 Pro users.
None of the testing done here supports the claim that Spigen is the best iPhone glass screen protector. All three testers used different devices, different samples of the same device, and different testing methods.
Is Spigen’s privacy screen protector worth choosing over clear glass?
A privacy screen protector may be worth the expense if you typically have to view sensitive information while out in public places (e.g., train) or in a waiting area (e.g., doctor’s office or bank) or when using your work email at the café. The privacy screen protector is also not made of a stronger glass than a standard screen protector, but rather offers a viewing angle feature. On Spigen’s privacy listing, the privacy screen protector has the same 10H+ scratch resistance rating (as a standard screen protector), and both retail for $39.99 for a two-pack, priced $5 higher than standard (checked October 6, 2026).
According to Spigen, its privacy screen protector is made with “micro louver privacy tech.” ZAGG, which sells privacy screen protectors, compares micro louver technology to mini vertical blind-style shutters, meaning that while a person standing directly in front of the device can see everything on the screen, people standing to either side will see a very darkened version of the screen. ZAGG also highlights the trade-offs of purchasing a privacy screen protector, including the fact that “a privacy screen protector will often reduce the brightness of the device screen” and how it will be hard to show someone what’s on your screen or video chat with the person using a video conferencing application.
There are two areas where the claims made in connection with the Spigen privacy screen protector lack evidence. The first is that the Spigen privacy screen protector listing does not indicate its viewing angle when viewing a screen at various angles or indicate the brightness of a device when it’s viewed with a privacy screen protector covering it. Thus, we cannot determine how dim the screen would be when viewed with a privacy screen protector. The second area of concern is that each of the independent reviews referenced above were conducted using only the clear version of Spigen’s glass; thus, their ratings on clarity and hardness will not necessarily apply to the privacy version of the product.
A logical choice would be to choose privacy if blocking off to the sides of yourself is something that you would use on a daily basis. If brightness and ease of sharing the screen is a bigger factor, then choose clear. Another note: A verified buyer review on Spigen’s privacy page states that they accidentally selected Pro Max size from the model dropdown. Be sure to verify your selection prior to checking out.
Will the EZ Fit fit your exact iPhone and case?
If you buy a SKU that is specifically made for your phone model (in this case, an iPhone 18), and the case is able to comply with that specification, then you will have some protection for your device. However, please note that Pro and Pro Max models do not share interchangeable screen protector models, as stated by iThinkDifferent, which points out that the Pro Max has a larger 6.9″ (17.5cm) screen and a different cutout spacing than the Pro’s 6.3″ (16cm) screen. The current list of iPhone 18 SKUs is shown on Spigen.com on their clear and privacy product pages.
| iPhone model | Clear (Sensor Protected) SKU | Privacy SKU |
|---|---|---|
| iPhone 18 Pro | AGL07928 | AGL12023 |
| iPhone 18 Pro Max | AGL07907 | AGL12029 |
To verify the SKU of your order, locate the SKU number (as shown on the product box or listing) to see if it matches the information on this page before removing the packaging. On Spigen.com, the SKU number for both “iPhone 18 Pro / iPhone 17 Pro” is listed as AGL07928 and for the “iPhone 18 Pro Max / iPhone 17 Pro Max” is listed as AGL07907. Therefore, you may already own a clear pack case for your iPhone 17 model(s) that will fit the current model(s) as well; but still, always check the SKU and do not make assumptions.
In regards to Spigen’s cases, their own statements indicate that “all Spigen cases are compatible.” However, in the compatibility support article (located on their website), other manufacturers’ protective cases may work with your Spigen case, but only “most” of them will fit; Spigen does not guarantee compatibility between their cases and those from other brands because no testing has been performed.
Both sides of the case are supported by tangible data. The Case Tester found that every one of the iPhone 18 Pro cases tested with Spigen glass fit properly over the glass. However, the Case Tester did find that the Spigen glass was slightly smaller than other competitor’s protectors, which created relatively large gaps from the display edges and did not have the black borders to conceal them. In contrast, one iPhone 18 Pro owner on Reddit stated that the glass fit too high, resulting in a bubble at the top after placing their phone into a Spigen ToughArmor case. This is one self-reported case and does not represent a defect rate. Still, it should encourage users to check the gaps at the edge of the glass immediately after installing the case.
When purchasing a Spigen case, determining which Spigen case is the best is not relevant to purchasing a phone case, only whether its rim will press on the glass.
How do you install Spigen EZ Fit without dust or bubbles?
It is important to remove the case from your phone, thoroughly clean the screen, align your tray correctly, and gently push down the bubbles left over by the tray. The tray holds your glass in place so it does not become crooked but it does not prevent dust from getting underneath the glass. According to Wirecutter, “As long as you clean the surface of your phone thoroughly, you should not see any air bubbles.” The “as long as” portion of that statement is critical.
Here is a checklist combining Spigen’s installation directions and the tray instructions provided by Wirecutter and Case Tester. Video installation instructions can be found at install.spigen.com.
Before you start
- [ ] Check that the SKU on the box matches your exact iPhone model (see the table above).
- [ ] Take the case off. Spigen recommends leaving the case on for some protectors, but says to remove it for anything that uses an EZ Fit tray.
- [ ] Wash your hands and work on a clean, stable surface.
- [ ] Wipe the screen with the included wet wipe, then the microfiber cloth. Use the dust-removal sticker on any specks that are left.
Applying the glass
- Peel off the protector’s backing film inside the tray. Case Tester says it forgot this step on its first try and notes that Spigen’s order differs from some other brands.
- Snap the tray onto the phone so it sits fully seated.
- Press down along the sticker on the front of the protector, as Wirecutter describes. Case Tester reports that the instructions say to wait about 30 seconds for the glass to settle.
- Remove the tray.
Inspecting the result
- [ ] Push any bubbles gently outward toward the nearest edge. Don’t press hard: Spigen warns that excessive force can damage the protector.
- [ ] If a bubble won’t move, it’s probably a speck of dust, not air. Don’t lift the glass to fix it. Spigen advises against reusing a protector because removing it can damage the adhesive. Use the second sheet instead.
- [ ] Put the case back on and look along all four edges for lifting or new bubbles.
Spigen’s box instructions do not include two things: what to do if there is dust under the glass and what to do if the case lifts the edges of the glass. If you cannot remove a problem area on your own, the spare sheet that is included with your purchase will help you in that case.
What do Spigen’s 9H+/10H+ claims—and the available tests—actually show?
Despite the fact that Spigen’s Product Page claims to offer a level of dropped protection for their product, it does not indicate a specific degree of protection for falls. It should be noted that Spigen uses “10H+” on its Product Page but lists a “9H” rating for its item on Amazon.com. The ratings provided by both companies do not indicate how their respective products would perform during a fall. The hardness scale for both Spigen and Amazon came from the pencil Hardness Test method as outlined in ASTM D3363. ASTM does warn consumers that the results of this test can differ greatly between different laboratories, depending on the pencils used for the testing.
According to the Wirecutter’s review of the Spigen product, the hardest pencil used to test the glass (9H) is actually softer than tempered glass. Wirecutter explains that even the hardest pencil in that test (9H) is softer than tempered glass. Because of this difference, Wirecutter used Mohs mineral picks to test the glass because Mohs picks will scratch glass while pencil hardness testing will not. Wirecutter published a chart comparing the results obtained from their test and from that of Case tester, as well as indicating the iPhone generations that were included in each.
| Test area | Spigen’s claim | Independent results (tester, phone) | What it means for you |
|---|---|---|---|
| Scratch hardness | “10H+” (spigen.com); “9H” (Amazon) | Between Mohs 7 and 8 (Wirecutter, iPhone 17). Scratched at 6H and 7H pencil levels (MobileReviews EH, iPhone 16). No mark from a box cutter, but clear scratches from a porcelain tile Case Tester rates at Mohs 8 (Case Tester, iPhone 18 Pro Max) | Resists everyday scratches, but harder materials still mark it |
| Clarity | “Maximum light transmittance” | No clarity or brightness problems (Wirecutter). Kept 0.88 of the screen’s clarity versus a 0.9 group average (MobileReviews EH) | Fine for most eyes. One tester measured slightly below average |
| Touch and Face ID | “Zero lag” touch | Responsive touch; cameras and sensors unaffected (Wirecutter). Face ID worked (Case Tester) | No reported touch or sensor problems |
| Impact and edges | “Superior protection” | Impact resistance about 55 lbf (245.18 N) versus a 271.44 N average; edges averaged about 24.5 lbf (109.06 N), above the 86.18 N mean but with wide variation (MobileReviews EH). Broke when bent (Case Tester) | Mediocre in the one force test available. These are lab force tests, not drop tests |
| Coverage | Full-display coverage | 94.08% coverage, the highest in its batch (MobileReviews EH). Smaller than rivals, with visible edges and no black border (Case Tester) | Covers well, but you may see the edge of the glass |
When comparing the test results from the Wirecutter to the Case Tester for the scratch test comparison, both testers arrived at similar results despite the fact that their reviews differ significantly in how they expressed their conclusions. The determination by the Wirecutter of “between 7 and 8,” means that the glass was scratched by a Mohs 8 pick whereas the Case Tester rated their tile as a Mohs 8. The difference between how the two testers rated that scratch is probably an interpretation of what the glass failed at.
The numbers and impact values refer back to one older sample so do not be taken as an iPhone 18 sample. Additionally, Wirecutter’s findings for the iPhone 17 are also based on this same one sample set. It is also worth realising that a screen protector only provides protection for the flat face of the device’s display. Wirecutter has shared iFixit’s research, which indicates that 75% of the dozens of broken screen devices iFixit has seen broke at the corner or edge of the display. This same reason is why Wirecutter states that a quality case is “more important than a screen protector” for a mobile device.
Does the two-pack and replacement program justify the price?
While it is easier to justify a sale price, at its full price it becomes a much more difficult justification for its purchase. All listings for iPhone 18 Pro Max’s, checked on 10/06/26, was based on current United States prices as found on Amazon and therefore, is subject to seller, Prime status, geographical location, and pricing fluctuations that occur regularly.
| Option | Price (10/06/2026) | Cost per screen protector | Conditions |
|---|---|---|---|
| Spigen clear, Amazon | $17.91 | About $8.96 | Prime-exclusive offer shown against a $27.99 list price |
| Spigen clear, Spigen.com | $34.99 | About $17.50 | Full price; two protectors |
| Spigen privacy, Amazon | $22.99 | About $11.50 | Two protectors, sold by Spigen Inc |
| amFilm OneTouch, Amazon | $9.49 | Not directly comparable | “2+4” bundle of two screen protectors plus four camera-lens protectors |
As per the above table, the per protector cost per pack was based on dividing the pack price by 2. The amFilm protector was included in this table as Wirecutter determined the quality of the glass on the amFilm to be the same as Spigen’s and was listed as the runner-up, although it was noted that the uptake/tray was “a little trickier” to use. Wirecutter also noted that $10 is the maximum price they believe people should pay for a glass screen protector; while Spigen.com currently sells their clear protectors for considerably more than $10 per protector.
GLAS.tR replacement policy does not allow for a free replacement; it allows for a discounted replacement. The buyer returns the original protector within one year of purchase using Spigen’s RMA form and receives a 50% discount code towards a new replacement at MSRP. Buyers must have purchased the original from Spigen.com or the official Amazon store (as per Spigen’s eligibility article) and shipping on the return must be shipped via United States Postal Service First Class Mail only. The 50% discount code is not valid in conjunction with any other discounts/offers, and Spigen has the right to modify the program at any time without notice.
The math shows that the clear pack from Amazon on 10/06/2026 will cost you roughly $17.50 before tax, which is about half of the $34.99 list price. Choosing to buy from Amazon also allows you to avoid sending anything back, making it much easier. The Return Program will be beneficial if there are no sales; however, the value of the new screen is far more significant than that of your second screen, which is already in the package.
The Installation Check
The Spigen EZ Fit is a great option to consider for those looking for an easy installation, as well as a backup sheet; however, do not expect to receive a top-quality hardness rating from this product. Prior to peeling the film off the backing, make sure to check the SKU number on the box to be sure that it matches your exact model of iPhone. After installing the EZ Fit, replace the case, and take a good look at all four corners/edges of the phone after reinstalling the case. Doing both of these steps will catch the two potential problems that can be resolved: (1) ordering the wrong size, which you can return for a refund; and (2) if an edge is not properly adhered down, you can use the second sheet of film to correct this problem before you return the first one.
Frequently Asked Questions
Yes. There are reviews that indicate that Face ID does, in fact work through the Spigen screen protector. According to Wirecutter, they did not experience any issues with the cameras or sensors on their iPhone 17 models while testing. In addition, according to Case Tester, Face ID was also able to work through the glass of their iPhone 18 Pro while using the Spigen screen protector.
It depends. The size of the Spigen screen protector used for the iPhone 17 Pro has a clear label (SKU AGL07928) according to Spigen’s product images for both the iPhone 18 Pro and iPhone 17 Pro. The clear labels (SKU AGL07907) are for both Pro Max models. Verify that the SKU on the box matches the SKU of the Spigen Protector on the iPhone 18 Pro prior to applying it.
In the case of the clear version that Case Tester examined, the Spigen Protector does not have a black border. The glass portion of the product has a slightly smaller footprint than the display area so in certain lighting, you can see the edge of the glass protector.
Yes. If drop protection is important to you then yes, you need a case in addition to a screen protector. The screen protector will only protect the flat face of your device (i.e. front). According to Wirecutter, in an iFixit count, 75% of broken screens were broken due to dropping the device on the corner or edge of the device.
