Last year, Instagram launched Reels, a short-form video section that allowed users to create and watch videos of up to 15 seconds. The launch came at a time when TikTok was struggling, as were other Chinese companies and services. Since its launch, the service has taken the world by storm, with Reels now being used by every major brand and celebrity around the world.

If you're interested in getting started with Reels and are wondering what the correct dimensions and sizes of videos to upload as Reels are, read the following post to learn more.

Related: How to Add a Reel on Instagram

Since Instagram Reels is hosted vertically, it follows a full-screen portrait video format, just like Instagram Stories. Therefore, when you upload a Reels video to Instagram, you should create it in a 9:16 aspect ratio so that you can easily view it fullscreen on your mobile device.