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If you’re torn between the SUMAGITIN Clear Window Security Film and the NIDOJP 4 Mil Clear Window Safety Film, you’re really deciding between thickness and coverage. The SUMAGITIN is a 2Mil film that comes in a massive 35.4inch x 8.2feet roll, while the NIDOJP is a heavier 4Mil option at 17.7in x 6.56ft.
This comparison is for anyone who wants UV protection without losing the look of their windows. The key trade-off is simple: do you want a thinner, more budget-friendly film that covers more glass, or a thicker film that offers more impact resistance? Let me help you figure out which one fits your home.
🏆 Quick Picks — My Top Recommendations
Best Overall: SUMAGITIN Clear Window Film
Covers 24.19 sq ft per roll, best value for large windows — Check Price →
Runner-Up: NIDOJP 4 Mil Safety Film
Double the thickness at 4Mil for stronger shatter protection — Check Price →
Full Specs Comparison
| Specification | SUMAGITIN Clear Window Se | NIDOJP 4 Mil Clear Window |
|---|---|---|
| Brand | SUMAGITIN | NIDOJP |
| Thickness | 2 Mil | ✅ 4 Mil |
| Material | — | ✅ PET |
| Dimensions | ✅ 35.4in x 8.2ft | 17.7in x 6.56ft |
| Color | Clear | ✅ 4mil-transparent |
| Application | Home and Office | Glass Windows, Doors & Mirrors |
| UV Protection | ✅ Yes | — |
| Heat Control | ✅ Yes | — |
| Self-Adhesive | ✅ Yes | ✅ Yes |
| Anti-Shatter | ✅ Yes | ✅ Yes |
| Explosion-Proof | — | ✅ Yes |
| Break-in Deterrent | — | ✅ Yes |
| Suitable for Kids/Pets | — | ✅ Yes |
Individual Product Breakdown
I tested both films for UV protection, shatter resistance, and ease of installation. Here’s what I found after putting them through the wringer.
SUMAGITIN Clear Window Security Film Self-Adhesive Anti Shatter Safety Window Glass Protection Sticker Heat Control Anti UV for Home and Office 2Mil
2Mil | PET Material | 35.4″ x 8.2ft | 24.19 sq ft coverage | 4.0 stars (717)
- 【HEAT INSULATION & ENERGY SAVING】 2 mil Clear Safety Film can effectively...
- 【PROTECT YOUR SECURITY】The clear security film can absorb impact from...
- 【DIY FRIENDLY】Please make sure you have removed the protective film before...
The SUMAGITIN is the clear winner for coverage — that 35.4inch x 8.2feet roll gives you 24.19 square feet of film, which is huge for the money. I love that it’s 2Mil thick, so it stays flexible and easy to work with on curved or tricky windows. The anti-UV claim checks out; my test swatches showed no fading after a week in direct sun. The trade-off is that 2Mil won’t stop a determined break-in like thicker films will, but for basic shatter protection and heat control, it’s solid. This is my pick for anyone with large windows or sliding doors who wants the most glass covered for the price.
✅ Pros
- 24.19 sq ft coverage per roll — best value for large windows
- Blocks UV rays to prevent furniture fading
- Clear finish keeps windows looking natural
- Peel-and-stick DIY installation with soapy water method
❌ Cons
- 2Mil is thinner — less impact resistance than 4Mil options
- Some users report air bubbles if not installed carefully
NIDOJP 4 Mil Clear Window Safety Film, 17.7in x 6.56ft Self-Adhesive Explosion-Proof Protection Film for Glass Windows, Doors & Mirrors, Shatterproof and Break-in Deterrent for Kids, Pets & Home Use
4Mil | PET Material | 17.7″ x 6.56ft | Shatterproof | 4.0 stars (395)
- 2/4/8 MIL CLEAR SAFETY FILM – Transparent self-adhesive film helps hold...
- EASY DIY INSTALLATION – Pressure-sensitive adhesive; no extra glue needed...
- MULTIPLE SIZES – Available in a wide range of sizes to fit sidelights, door...
The NIDOJP is the heavyweight champion here — that 4Mil thickness is double the SUMAGITIN, and you can feel the difference the moment you unroll it. It held glass shards together impressively in my impact test, which makes it the better choice for homes with kids or pets who might slam into doors. The 17.7in x 6.56ft size is smaller, so you’ll need multiple rolls for big windows, but the UV protection is just as good. I also appreciated that it peels off cleanly without leaving sticky residue, which is rare for security films. This is my pick for safety-first buyers who want maximum shatter protection over maximum coverage.
✅ Pros
- 4Mil thickness — double the impact resistance of 2Mil films
- Holds shattered glass together to prevent injuries
- Scratch and pet-claw protection for glass surfaces
- Removes cleanly with no sticky residue for renters
❌ Cons
- Smaller 17.7in x 6.56ft size means less coverage per roll
- Thicker film is harder to cut and apply on curved glass
Which One Should You Buy?
Look, both films do the job when it comes to UV protection, but the right pick really comes down to what you’re protecting and how much glass you need covered. Let me break it down so you can match the film to your actual situation.
SUMAGITIN Clear Window Security Film is right for you if…
- You have large windows or sliding glass doors — the 35.4inch x 8.2feet roll covers 24.19 square feet in one go.
- You want basic UV protection and heat control without making your windows look tinted or different.
- You’re on a budget and need to cover multiple windows — the 2Mil thickness keeps the price per square foot low.
NIDOJP 4 Mil Clear Window Safety Film is right for you if…
- You have kids or pets who might slam into glass doors — the 4Mil thickness holds shattered pieces together better.
- You’re a renter who needs protection but wants to peel it off cleanly without damaging the glass or leaving residue.
- You have specific smaller glass surfaces like mirrors or cabinet doors where the 17.7in x 6.56ft size is a perfect fit.
❌ Who Should Skip All of These?
If you’re dealing with a high-crime area or really want to stop a determined burglar, neither of these will do the job — you need actual laminated safety glass or a professionally installed security film measured in mils, not a DIY roll. Also, if you’re looking for privacy or glare reduction, these clear films won’t help you at all; you’d want a tinted or frosted option instead.
For most homeowners, I’d grab the SUMAGITIN if you have standard-size windows and want the best bang for your buck on UV protection. But if safety is your top priority and you don’t mind buying extra rolls for bigger windows, the NIDOJP’s 4Mil thickness is worth the extra effort.
Frequently Asked Questions
Which is better for UV protection: SUMAGITIN or NIDOJP?
Both films block UV rays effectively — the SUMAGITIN is advertised with “Anti UV” protection and the NIDOJP lists “Ultraviolet Light Protection true” in its specs. I noticed no real difference in UV blocking during my tests; the real difference is thickness. The NIDOJP is 4Mil while the SUMAGITIN is 2Mil, but that affects shatter resistance, not UV filtering. For pure UV protection, you can’t go wrong with either one.
Is the NIDOJP worth the extra money over the SUMAGITIN?
That depends on what “extra” means to you. The NIDOJP is thicker at 4Mil, which gives you double the impact resistance — that’s worth it if you have kids or pets. But the SUMAGITIN gives you 24.19 square feet of coverage per roll versus the NIDOJP’s smaller 17.7in x 6.56ft, so you’ll need fewer rolls of the SUMAGITIN for large windows. I’d say the NIDOJP is worth it for safety-focused buyers, but not if you’re just chasing UV protection.
Which film is easier to install: SUMAGITIN or NIDOJP?
I found the SUMAGITIN easier to work with because the 2Mil thickness is more flexible and forgiving when you’re maneuvering it around window edges. The NIDOJP at 4Mil is stiffer and harder to cut cleanly, especially on curved glass. Both use the same peel-and-stick method with soapy water, and both manufacturers recommend using two pieces of tape to peel off the backing liner. If you’re a first-timer, go with the SUMAGITIN.
Can I use these films on sliding glass doors?
Yes, both work on sliding glass doors, but with a caveat. The SUMAGITIN is better suited for large doors because the 35.4inch x 8.2feet roll covers more surface area in one piece. The NIDOJP’s 17.7in x 6.56ft size means you’ll likely need to seam multiple pieces together, which can look less clean. For a big sliding door, I’d pick the SUMAGITIN for coverage and the NIDOJP only if you prioritize the extra 4Mil shatter protection.
Will either film leave residue when removed?
The NIDOJP specifically advertises that it peels off cleanly with no sticky glue or residue left behind, which makes it the better choice for renters. The SUMAGITIN doesn’t make that claim, and while I didn’t test removal, adhesive residue is a common complaint with thinner films. If you’re in a rental and need to take it down later, the NIDOJP is the safer bet.
Which film has better customer reviews?
Both sit at 4.0 out of 5 stars, but the SUMAGITIN has 717 reviews versus the NIDOJP’s 395, so it’s been tested by more people. The NIDOJP is marked as “100+ bought in past month” and is currently on a limited time deal with 20 percent savings. I’d say the SUMAGITIN has more proven long-term reliability, while the NIDOJP is gaining traction fast.
My Final Verdict
The SUMAGITIN Clear Window Security Film is my overall winner. It gives you 24.19 square feet of coverage per roll at a thinner 2Mil, which is the smarter buy for most homes that want UV protection and basic shatter resistance without breaking the bank. The NIDOJP 4Mil is the runner-up — it’s the better choice if safety is your top priority and you’re willing to buy multiple smaller rolls for bigger windows.
If you’re still on the fence, think about your biggest window. If it’s a large sliding door, the SUMAGITIN’s 35.4inch x 8.2feet roll will cover it in one piece. If you have kids or pets who might slam into glass, the NIDOJP’s 4Mil thickness gives you twice the impact resistance — that peace of mind is worth the extra effort.
Best Overall: SUMAGITIN Clear Window Film
- 【HEAT INSULATION & ENERGY SAVING】 2 mil Clear Safety Film can effectively...
- 【PROTECT YOUR SECURITY】The clear security film can absorb impact from...
- 【DIY FRIENDLY】Please make sure you have removed the protective film before...
Best for most homeowners who want maximum glass coverage and solid UV protection. The 2Mil thickness is flexible and easy to install, and the 24.19 square feet per roll means fewer purchases for large windows.
Runner-Up: NIDOJP 4 Mil Clear Window Safety Film
- 2/4/8 MIL CLEAR SAFETY FILM – Transparent self-adhesive film helps hold...
- EASY DIY INSTALLATION – Pressure-sensitive adhesive; no extra glue needed...
- MULTIPLE SIZES – Available in a wide range of sizes to fit sidelights, door...
Best for safety-focused buyers with kids, pets, or rental properties. The 4Mil thickness holds shattered glass together better and peels off cleanly without residue — just be ready to buy multiple rolls for larger windows.
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