X Ads (formerly Twitter Ads) does not prioritize Reels because the platform doesn't have a dedicated "Reels" format like Instagram or Facebook. Instead, video content itself is a major focus for ad delivery on X.
Here’s what actually happens:
What X Ads does prioritize:
Video content in general—especially short, mobile-friendly formats—tends to get better reach and engagement compared to static images or text-only ads.
Their algorithm often favors autoplay videos, since they increase user interaction and watch time.
Ads with high video completion rates or strong engagement signals may be shown more often in auctions.
Why the confusion about “Reels”?
Other platforms (Meta, TikTok) have a specific Reels section for vertical, full-screen videos, which get algorithmic prioritization.
X, however, integrates video directly into the feed. There's no separate Reels or Stories-style area, so all video ads compete equally within the main feed.
For optimal delivery on X:
Use short-form, eye-catching videos (under 15 seconds usually works best)
Make the first 3 seconds count—autoplay happens silently, so use captions or bold visuals
Format for mobile (vertical or square formats perform better)
Ensure fast loading and high-quality compression
X Ads doesn’t have a Reels section to prioritize. Instead, video content itself is favored within the main feed—especially if it performs well. So while there’s no special placement like Reels, investing in compelling short-form video still gives you a performance edge.