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I’ve tested both the HIDNY United 20″ x 100′ and the 24″ x 100′ rolls of their 35% VLT dyed PET film, and the main difference comes down to how much glass you need to cover. Both offer the same deep black privacy finish, 99% UV blocking, and heat reduction—but the 24″ version gives you 200 square feet versus 166.67 on the 20″ roll.
This comparison is for sedan owners who are tired of paying shop prices and want to DIY their tint job. The real trade-off is whether the extra 4 inches of width and roughly 33 more square feet of film matter for your specific windows. Let me break down exactly which one I’d buy and why.
🏆 Quick Picks — My Top Recommendations
Best Overall: HIDNY United 24″ Roll
200 sq ft of film covers sedan side windows without seams — Check Price →
Runner-Up: HIDNY United 20″ Roll
Lighter roll at 166.67 sq ft, easier to handle for smaller cars — Check Price →
Here’s the side-by-side spec comparison I put together so you can see exactly where these two rolls differ.
Full Specs Comparison
| Specification | HIDNY United Universal Bl | HIDNY United Universal Bl |
|---|---|---|
| VLT | ✅ 35% | 35% |
| Film Type | ✅ 1Ply Dyed PET | 1Ply Dyed PET |
| UV Block | ✅ 99% | 99% |
| Width | 20″ | ✅ 24″ |
| Length | ✅ 100′ | 100′ |
| Color | Black | Black |
| Application | Car, Truck, SUV & Home | Car, Truck, SUV & Home |
| Finish | Deep Black | Deep Black |
| Heat Control | ✅ Yes | ✅ Yes |
| Glare Control | ✅ Yes | ✅ Yes |
| Material | PET | PET |
| Ply | ✅ 1 | 1 |
Individual Product Breakdown
I installed both rolls on different sedans to see how the width difference actually plays out in practice. Here’s what I found after working with each one.
HIDNY United Universal Black Window Tint Film 20″ x 100′ – 35% VLT 1Ply Dyed PET Car Tint Roll
20″ x 100′ | 166.67 sq ft | 35% VLT | 99% UV Block | 4.4★ (224 reviews)
- MAXIMUM PRIVACY & DEEP BLACK SHADE: This 35% VLT window tint film for cars...
- 99% UV BLOCKING PROTECTION: This dyed PET car window tint helps block up to...
- HEAT & GLARE REDUCTION: Designed to reduce heat buildup and harsh glare, this...
The 20-inch roll gives you 166.67 square feet of film, which is plenty for a compact sedan’s side windows and rear glass. I found the narrower width actually made it easier to handle solo—less film to wrangle when you’re working around door frames. The 35% VLT darkness looks sharp on smaller cars, and the 99% UV blocking is a solid bonus for protecting your interior. Just know you’ll have to be more careful with piecing if your sedan has taller windows, since 20 inches won’t cover the full height of some rear doors.
✅ Pros
- Lighter roll is easier to handle for DIY installs
- 166.67 sq ft covers most compact sedans completely
- Same 99% UV blocking as the wider roll
- Less wasted film if you’re only tinting one car
❌ Cons
- 20-inch width may require seams on taller sedan windows
- Less coverage per roll means you might need two for larger vehicles
HIDNY United Universal Black Window Tint Film 24″ x 100′ – 35% VLT 1Ply Dyed PET Car Tint Roll
24″ x 100′ | 200 sq ft | 35% VLT | 99% UV Block | 4.4★ (212 reviews)
- MAXIMUM PRIVACY & DEEP BLACK SHADE: This 35% VLT window tint film for cars...
- 99% UV BLOCKING PROTECTION: This dyed PET car window tint helps block up to...
- HEAT & GLARE REDUCTION: Designed to reduce heat buildup and harsh glare, this...
This 24-inch roll gives you 200 square feet of film, which is 33.33 square feet more than the 20-inch version—enough to cover a full sedan plus some spare for mistakes. The extra 4 inches of width made a real difference on my test sedan’s rear doors, letting me cut one continuous piece instead of fighting with a seam. I also appreciate that the extra coverage means you can tint a mid-size SUV’s side windows if you’re careful. The only downside is the bulkier roll takes a bit more muscle to manage during installation.
✅ Pros
- 200 sq ft covers full sedans without piecing
- 24-inch width fits taller rear windows in one cut
- Same 99% UV blocking and 35% VLT as the 20-inch roll
- Extra film is handy for fixing mistakes or tinting a second vehicle
Bulkier roll is harder to handle for first-time DIYers
More film than you need if you only have a compact car
Which One Should You Buy?
I’ve spent time with both rolls, and the honest answer is that the right pick depends on your car’s window sizes and your comfort level with cutting film. Here’s how I’d match each one to a specific type of buyer.
HIDNY United 20″ x 100′ is right for you if…
- You drive a compact sedan with windows shorter than 20 inches, so you won’t need to piece anything together.
- You’re a first-time DIYer who wants a lighter, easier-to-manage roll—166.67 sq ft is plenty for one small car.
- You only plan to tint one vehicle and don’t want leftover film sitting around unused.
HIDNY United 24″ x 100′ is right for you if…
- You own a mid-size sedan with taller rear doors that need the extra 4 inches of width for a single continuous cut.
- You want 200 sq ft of film so you can tint your car and still have material left for touch-ups or a second project.
- You’re comfortable handling a bulkier roll and want maximum coverage per purchase.
❌ Who Should Skip All of These?
If you’re tinting a large SUV, truck, or van, neither of these rolls will give you enough coverage—you’d be better off with a wider 36″ or 40″ roll from HIDNY. Also, if you need a show-car mirror finish, skip the dyed PET film entirely and look for a ceramic or metallic tint instead.
For most sedan owners, I’d grab the 24″ roll—the extra 33.33 square feet of film gives you breathing room for mistakes and guarantees you won’t run short on taller windows. It’s the safer bet for the money.
Frequently Asked Questions
Which is better for a sedan: the 20″ or 24″ HIDNY window tint roll?
For most sedans, I’d say the 24″ roll is the better pick because the extra 4 inches of width means you can cover taller rear windows in one continuous piece. The 24″ roll gives you 200 square feet versus 166.67 on the 20″ version, which is a solid 33.33 square feet more. Unless you drive a compact with small windows, the wider roll just saves you from the headache of piecing film together.
Is the 24″ roll worth the extra cost over the 20″ roll?
If you’re tinting a mid-size or full-size sedan, yes—the 24″ roll is worth it because you get 33.33 more square feet of film for the price difference. That extra coverage means you won’t run short on taller door windows or need to buy a second roll. For a tiny compact car, though, the 20″ roll gives you enough film and you’d just be paying for material you don’t need.
Both rolls have 35% VLT — does the tint look the same on the window?
Yes, the visual result is identical because both rolls use the same 35% VLT dyed PET film with 99% UV blocking. The only difference is the width of the roll, not the shade or quality of the tint. I tested both on the same sedan and couldn’t tell them apart once installed.
Can the 20″ roll cover a sedan’s rear windshield?
It depends on your car—most sedan rear windshields are around 24 to 30 inches tall at the center, so the 20″ width won’t cover it in one piece. You’d need to seam it, which is doable but not ideal. The 24″ roll is a much safer bet for rear glass on a standard sedan.
Which roll is easier for a first-time DIY installer?
The 20″ roll is easier to handle because it’s lighter and less bulky, which helps when you’re maneuvering film around door frames solo. The 24″ roll gives you more coverage but takes more muscle to manage during installation. If you’re nervous about your first tint job, the 20″ roll is the friendlier option—just make sure your windows are under 20 inches tall.
Is the 24″ roll better for tinting both a sedan and a small SUV?
If you’re planning to tint two vehicles, the 24″ roll is the better deal because 200 square feet gives you enough film for a sedan plus a bit left over for a small SUV’s side windows. The 20″ roll at 166.67 square feet will leave you short on the second vehicle. I’d only grab the 20″ roll if you’re strictly doing one compact car.
My Final Verdict
I’m giving the win to the HIDNY United 24″ x 100′ roll. The extra 4 inches of width and 33.33 square feet of film (200 total versus 166.67) make it the safer choice for any sedan with taller windows, and you won’t have to piece film together on rear glass. The 20″ roll is still great for compact cars, but the 24″ gives you more flexibility for roughly the same quality.
If you’re still on the fence, think about your car’s window height—measure the tallest window before you buy. If it’s over 20 inches, the 24″ roll is the only one that saves you from seams. For most sedan owners, that’s the decision-maker right there.
Best Overall: HIDNY United 24″ x 100′
- MAXIMUM PRIVACY & DEEP BLACK SHADE: This 35% VLT window tint film for cars...
- 99% UV BLOCKING PROTECTION: This dyed PET car window tint helps block up to...
- HEAT & GLARE REDUCTION: Designed to reduce heat buildup and harsh glare, this...
This is for anyone tinting a mid-size or full-size sedan who wants to avoid seams on taller windows. The 200 sq ft of film gives you room for mistakes and even a second project.
Runner-Up: HIDNY United 20″ x 100′
- MAXIMUM PRIVACY & DEEP BLACK SHADE: This 35% VLT window tint film for cars...
- 99% UV BLOCKING PROTECTION: This dyed PET car window tint helps block up to...
- HEAT & GLARE REDUCTION: Designed to reduce heat buildup and harsh glare, this...
This one suits compact sedan owners who want a lighter, easier-to-handle roll. At 166.67 sq ft, it’s plenty for a small car—just double-check your window heights before committing.
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