According to Instagram, likes, spend, and watch time are the signals that have the most weight in 2026. However, sends have more weight than likes. That means if you want to grow on Instagram in 2026, you should focus on creating the kind of content that generates higher engagement to match the major shift in the Instagram algorithm in 2026.

Two of the content formats that have higher engagement in 2026 are Reels and carousels. The report indicates that the engagement rate of carousel posts is usually three times higher than that of Reels or single images. This is why these content formats have moved to the center of the feed for brands and creators, focusing on the depth of engagement. On the other hand, Reels are among the most popular content formats. This often leads to questions about which of these two content formats the creator should prioritize. Join us in this article as we answer the question of which of these two formats should be prioritized.

What is an Instagram Carousel Post?

An Instagram carousel post is a single feed post consisting of up to 20 videos and images. Users of this content usually swipe horizontally to keep watching the content. The content format is a good choice for tutorials, storytelling, before-and-after images, and step-by-step guides. It can be a good format to turn your top-performing blog posts into carousels.

You can create an Instagram carousel post by clicking on the plus icon to add a post, then choosing the selection icon to add the media. You can then add up to 20 images, in the order you need them to appear.

Why Instagram Carousels Have Higher Engagement

According to Meta, there are several interactions that impact the ranking of posts in the algorithm. These are the likes, comments, post dwell time, reshares, and taps on the profile photo. According to Instagram, the carousel post format has the highest of the first four signals compared to the feed format. 

This is understandable considering that swiping through several slides requires more time than another person viewing a single image post. Additionally, when someone invests their time to watch your slideshow, it means they see value in it, often resulting in a higher watch time. With every slide comes an opportunity for the user to comment, send, or save. This is why Instagram carousel posts have a higher number of shares and saves compared to other content formats.

With the ability to add up to 20 photos and videos, carousels are perfect for driving engagement as users spend more time interacting with the post compared to a single-image post. Reports indicate that the save rate of the carousel format is usually twice as high as that of reels.

When your content is shown to your current followers, likes usually have more weight. On the other hand, for audiences that don't follow your account, sends usually have more weight. If your carousel post gets a DM share, it shows it's meeting the needs of Instagram, making the platform surface the post in the home feed or Explore page.

Meta hasn't made its data public on active dwell time and swipe depth as a ranking factor. However, one clear thing is that content consisting of multiple slides takes more time on a post, more send opportunities, and a higher feed ranking. These inputs are already considered in the feed ranking.

A Case for Carousel over Reels

Carousels are quieter compared to Reels, as they don't go viral. However, they offer more value for several reasons, such as:

• Higher engagement. As noted earlier, carousel posts have Reels and even feed posts. Therefore, if you want to drive engagement, carousel posts are a good choice. 
• Perfect for a certain content format. Some content formats are likely to perform better when presented in a carousel. For instance, the format is a good choice for sharing before-and-after comparisons, multi-part announcements, and a step-by-step guide, as each content format provides viewers with a reason to stay. 
• Favored by the algorithm. Since engagement is one of the greatest factors affecting ranking, it means the Instagram algorithm prioritizes carousels over other posts. Additionally, when someone clicks on an Instagram carousel and doesn't watch the whole slide, Instagram will still produce the remaining slide for them. This is something not possible with other post formats. That's why carousels have a compounding impact.

What is an Instagram Reel?

An Instagram Reel is a short-form video (1080 x 1920 pixels), usually featured in the main feed as well as the Reels feed. It also appears on the grid, Reels tab, and friends section. While initially they used to be up to 15 seconds, they can now be as long as three minutes in 2026.

A Case for Reels Over Carousels

There are several instances when Instagram Reels are better than carousel posts. These include:

• A discovery tab. Instagram shows Reels to people who don't follow your account. In fact, this is one content format that is aggressively distributed to non-followers under the Explore and Reels tabs. Therefore, if your goal is to get discovered by people who don't follow you, Reels are a good choice.
• Participating in trends. Reels enable creators to make trending content either with trending audio or in other formats. This increases the chance of your account going viral compared to carousel or standard feed posts.
• Passive consumption. For audiences who love fast video content, the fast-paced nature of Reels offers a quick form of entertainment and storytelling.
• Time-saving. After filming and editing a Reel as short as 15 seconds, you can gain a massive amount of exposure.

Factors to Consider When Choosing Between a Reel and a Carousel

To decide whether to go with Reels or carousels, consider several factors, such as:

• Audience preference. If your goal is to create in-depth educational content or a detailed guide, you may need to consider carousel posts. On the other hand, if your audience prefers content that is fast and digestible, consider using Reels.
• Content type. Do you want to show the multiple features of your products in a number of images? Carousel posts can be a good choice to do so. On the other hand, you can use Reels to showcase behind-the-scenes images of your products or brands.
• Consumption psychology. Reels can be a good choice for creating content that is fast, addictive, and entertaining. On the other hand, carousels work well for content that needs longer dwell time and deeper processing. Both content formats are valuable but offer different stages of trust and attention.

How to Choose the Right Option

• A/B testing results. You can conduct an A/B test of both content formats to determine the engagement rate over a particular period and compare the results. You can then use the results to change your strategies.
• Get the audience’s feedback. You can use DM messages and a poll to get direct feedback from your audience on the preferred content formats.
• Remain adaptive. Social media trends change fast, and therefore, you need to keep adapting your strategy. Take time to experiment with new features and formats to ensure that you have fresh content. 
• Leverage analytics. Make sure you check your account analytics to see the performance in terms of likes, comments, shares, and saves, and to determine the content that works best for your target audience.

Combining Reels and Carousel Posts

When choosing between Reels and carousel posts, a good idea would be to combine the two content formats. You can use Reels to grow your following, while Carousels can help you deepen the level of trust with your current following. This is because it can help you deepen your trust with them through DM shares, saves, and return visits.

You can, therefore, add both formats in the content calendar of the same week, using Instagram Reels to go viral and get discovered, and carousels for storytelling and educational content. 

You can use Reels to:

• Drive brand awareness and make your content go viral.
• Drive traffic when combined with a link in bio.
• Storytelling and sharing behind-the-scenes content.
• Leverage a trend.
• Showcasing tutorials and transformations.

You can then use carousels to:

• Lead generation, as long as you add the CTA.
• Educate your audience about your product.
• Thought leadership content.
• Break down and step-by-step guide.
• Get more DMs, be more active, and have a higher attention span.
• Community building.

In Conclusion

In recent years, Instagram has evolved from a photo-sharing platform into a dynamic app that offers value in a wide range of formats. When choosing a good content format, two of the options you need to consider are reels and carousels. To determine the option that is best suited for you, consider your audience preferences and content goals. So, if you are wondering whether to focus on reels or carousels, you can use our detailed guide to choose the right content format.