How to Do the 5120x1080 Instagram Trend (Thinnest Post)

To make a 5120x1080 "Thinnest Post" video, first import a 5120x1080 image to lock in the aspect ratio, then add your main video clip and trim the initial image. For best results, enhance your video's quality with an AI tool like YouCam Video before posting.

If you’ve been scrolling Instagram, you've seen them: those crazy tall, thin videos that seem to defy the app's layout. That’s the 5120x1080 video trend, also known as the "Thinnest Post." If you’re wondering how people are creating these eye-catching videos directly from their phones, you’re in the right place.

In this guide, I’ll show you exactly how to create your own 5120x1080 Instagram video, step-by-step. Plus, we'll share a pro tip to level up your video quality with AI, because a blurry post won't go viral.

Source: @evelongfield

What Is the “Thinnest Post” Trend on Instagram?

The "Thinnest Post" trend is all about creating ultra-tall videos with a 5120x1080 resolution. Essentially, it's a super-wide horizontal video that gets cropped to look impossibly narrow on vertical screens. This unique format breaks the usual Instagram Reel layout and immediately stops the scroll, which is why it's blowing up.

Paired with cool transitions or glow-ups, this trend is basically built for viral content. If you want to flex your creative editing skills, this is your moment.

How to Make a 5120x1080 Video (Using Just Your Phone)

You don’t need fancy software to do this.

Here’s the step-by-step guide to posting a 5120x1080 video right from your phone:

Step 1: Open CapCut and Import a 5120x1080 Image FIRST

This is the most important step! Start by selecting an image that already has a 5120x1080 resolution. This locks the aspect ratio of your Video. If you don’t have one, you can easily find or create a blank one online.

Step 2: Add the Video You Want to Post

Now, add your main video clip. You can use a panoramic video, a landscape clip, or any wide shot. Instagram will now keep the tall, thin format.

Step 3: Edit, Add Audio, and Post!

Add trending audio, text, or effects. Then hit publish, and you’re officially part of the trend!

Pro Tip: Make Your 5120x1080 Video Look Perfect with AI

Real talk: the video quality can make or break your post. Because you're heavily cropping the frame, any blur or pixelation becomes extremely noticeable. Before you post, use an AI tool like YouCam Video to boost the quality and make it shine.

Enhance Your Video Quality

Here’s How to Enhance Your Video:

1. Download or Open YouCam Video: It’s free and available on iOS and Android.
2. Select Your Video: Upload the video you plan to use for the trend.
3. Let AI Enhance the Quality: With one tap, the AI will sharpen your video, fix lighting, and make it instantly more polished.
4. Save Your Enhanced Video: Now your content is high-res and ready to go viral. Head back to Instagram and upload it like a pro.

Key Takeaways

• The Trick is the Ratio: The secret to the 5120x1080 trend is to set the aspect ratio *before* adding your main video clip by using a pre-formatted image first.
• Quality is Non-Negotiable: Heavy cropping degrades video quality. Always use the highest resolution clip possible and enhance it with an AI tool for a professional look.
• Creativity Wins: This trend thrives on cinematic shots, cool transitions, and glow-ups. Think about what will look most dramatic in the ultra-tall format.
• You Only Need Your Phone: With the right steps and a helpful app, you can create a viral-worthy "Thinnest Post" without any desktop software.

Final Thoughts

The 5120x1080 video trend is one of the most creative things to hit Instagram Reels this year. It’s weird, fun, and incredibly scroll-stopping. Best of all, you can join the trend with just your phone and the right editing tools.

So don’t wait. Try it out, enhance your video with YouCam Video, and let your creativity shine.

About the Editors

The PERFECT Corp. Editorial Team

We are a team of experts on photo and video editing apps. Our goal is to deliver engaging content on everything from stunning selfie edits to eye-catching video effects. We cover the latest trends and share niche tips to help you master digital creation.

5120x1080 Trend Questions, Answered (FAQ)

What is the 5120x1080 ratio on Instagram?

It’s a super-wide video resolution that, when posted on a vertical platform like Instagram Reels, gets cropped into a very tall, thin video. This unique format is used in the viral "Thinnest Post" trend to grab attention.

How do I make a 5120x1080 video without it being blurry?

Blurriness is common due to heavy cropping. To avoid it, start with a high-quality video (filmed in 4K if possible) and use an AI video enhancer like YouCam Video to upscale the quality *before* you post it on Instagram.

Can I do the 5120x1080 trend on Android?

Absolutely! The process is the same on both Android and iPhone. You can use the Instagram app to create the Reel and an app like YouCam Video (available on Android) to enhance your video quality.

Is there a template for 5120x1080 Reels?

While some advanced editing apps may offer templates, the easiest way is the Instagram trick: import a 5120x1080 image first to set the template for your Reel project automatically.