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IMPERVIR · BLOGSeptember 18, 2026

7 min read

Reels quality: 720 pixels, 30 frames and a 420 × 654 cover

The Help Centre names a minimum frame rate, a minimum resolution and a cover size you cannot edit after uploading. Compression is never mentioned there.

Reels quality: 720 pixels, 30 frames and a 420 × 654 cover

Four numbers from the Help Centre and one toggle that few people know about.

The video looked sharp on the phone and turned soft in the feed. The usual answer online is “the algorithm compresses it, upload in 4K”. The Instagram Help Centre says nothing about compression, yet it names four numbers and one toggle in the app settings that governs upload quality.

WHAT YOU TAKE AWAY

The minimum requirements the platform sets for a video. The exact cover size and why it cannot be changed after uploading. Where the quality toggle lives and what it charges for that quality. What the document does not promise at all. Seven minutes of reading.

CONTENTS

01MINIMUMS
PART 01QUALITY

30 frames per second and 720 pixels

The lower bound, below which the video is already spoiled.

The Help Centre makes do with one short line, and both numbers in it are worth remembering.

Reels should have a minimum frame rate of 30 FPS (frames per second) and minimum resolution of 720 pixels.

Instagram Help Centre · “Reel size & aspect ratios on Instagram”

This is a minimum, not a recommendation. Footage shot at 24 frames for the sake of a cinematic look ends up below the bound the platform names, and from there the question is no longer about the algorithm.

The four numbers named in the Help Centre.
The four numbers named in the Help Centre.

A resolution of 720 pixels sounds modest next to phones that shoot in 4K. The point here is different: it is the threshold below which a video counts as substandard on arrival. The Help Centre names no upper bound on this page at all.


02RATIOS
PART 02QUALITY

Two permitted aspect ratios

The vertical and the wide horizontal, the two ends of one range.

You can upload a reel with an aspect ratio between 1.91:1 and 9:16.

Instagram Help Centre · the same page

The 9:16 format gives the familiar vertical that fills the whole phone screen. The 1.91:1 value describes a wide horizontal frame, the same one that links with a picture use.

This is worth a pause. The Russian localisation of the same page puts it as two values: 1.91:1 or 9:16. The English wording names the span, the Russian one names two separate points.

A divergence between localisations of one page is not new here. The practical conclusion is simple: the 9:16 vertical is named in both versions, and it is the only format you can vouch for.

A video shot any other way will be brought into its own frame by the platform. That is how Reels differ from the carousel, where the orientation is chosen once and applied to every file in the post.

WHAT THIS MEANS FOR FILMING

Shoot vertically in 9:16, keep the frame rate at 30 or above and do not drop the resolution below 720 pixels. Everything else remains a matter of taste, while these three numbers are named by the platform outright.


03COVER
PART 03QUALITY

420 × 654 and one attempt

The one place where a mistake cannot be undone.

Next comes a line worth reading twice.

The recommended size for cover photos is 420px by 654px (or 1:1.55 ratio). Right now, you can't edit your cover photo after you've uploaded it.

Instagram Help Centre · the same page

The second half of the sentence costs more than the first. The caption can be edited, the tags can be edited, the cover cannot. The first frame grabbed in a hurry stays with the video forever.

The cover, meanwhile, decides how the video looks in the profile grid. Someone who arrives at a new profile sees it before the first seconds of the video.

THE ROUTINE THAT SAVES A RESHOOT

The cover is prepared before publishing. Size 420 × 654, ratio 1:1.55. If the cover is already uploaded and you do not like it, the only way to change it is to post the video again.

The 1:1.55 ratio differs from the familiar 9:16 vertical, so a frame cut from the video is cropped differently in the profile grid than it is in the video itself.


04TOGGLE
PART 04QUALITY

Upload at highest quality

The setting that explains part of the complaints about soft footage.

The Help Centre has a separate line about upload quality, and it answers the main question of the topic.

You can chose to always upload reel at the highest quality. Note it may take longer to upload reel of higher quality.

Instagram Help Centre · the same page

So the setting exists, it can be switched off and on, and the platform names the price honestly: uploading will take longer.

THE PATH

Profile → “Menu” in the top right corner → the “Your app and media” section → “Media quality” → the “Upload at highest quality” toggle.

What to check before the video goes to the server.
What to check before the video goes to the server.

The setting is worth checking once, after which it works for every upload. This is the only quality lever the platform hands the user in plain words.


05WHAT IS MISSING
PART 05QUALITY

What the document does not say

Half of the advice circulating online is supported by nothing.

It is useful to name what the page does not say as well.

There is no promise to preserve the original quality. There is no word “compression” and no explanation of how it works. There are no bitrates and no codecs. There is no claim that uploading from a computer is gentler than uploading from a phone.

The main thing is missing too: any link between picture quality and distribution. The document describes the requirements for a file, not the rules by which videos are shown.

The platform explains the mechanics of distribution elsewhere, and a low view count has reasons of its own. Mixing these two topics means fixing the wrong thing.


06SEQUENCE
PART 06QUALITY

The checks to run before publishing

Five points, three of them done once.

First: turn on the quality toggle in the app settings. This is done once.

Second: check that the filming is vertical and the frame rate is not below thirty.

Third: prepare the cover in advance, at a size of 420 × 654.

Fourth: upload on a stable connection, remembering that high quality means a longer send.

Fifth: look at the result in the feed on a device that is not yours, rather than stopping at the preview. The same method helps check how the video looks to a viewer rather than to its author.

Uploading in 4K so that “1080 is left after compression”
The Help Centre does not describe compression at all and promises nothing about the final quality. It names the minimums and the upload quality toggle.
Choosing the cover at the moment of publishing
The cover cannot be edited after uploading. The only way to change it is to post the video again.
Filming at 24 frames for the sake of a cinematic look
The minimum frame rate named by the platform is thirty. Anything below that goes under the bound it has set itself.

Every week we go through what Instagram, Threads and Telegram say about themselves: ranking cards, help pages, updates. No invented numbers and no borrowed tables.

FREQUENTLY ASKED

What resolution do you need for Reels?+
The minimum resolution named by the Help Centre is 720 pixels. The platform gives no upper bound on this page.
What frame rate do you need for Reels?+
A minimum of thirty frames per second. Footage shot at a lower rate ends up below the requirement the platform sets.
What aspect ratio do Reels have?+
The English Help Centre names a range between 1.91:1 and 9:16. The Russian version of the same page names two separate values. The 9:16 vertical is named in both, and it is the safest choice.
What is the cover size for Reels?+
The recommended cover size is 420 × 654 pixels, ratio 1:1.55. The cover cannot be edited after uploading.
How do you upload Reels in high quality?+
In your profile open the menu, go to the “Your app and media” section, then to “Media quality”, and turn on the “Upload at highest quality” toggle. Uploading may take more time after that.
Is it true that Instagram compresses video heavily?+
The page with the requirements for Reels says nothing about compression. It names the minimum frame rate, the minimum resolution, the permitted aspect ratios, the cover size and the upload quality setting.
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