# Apple iMac 21.5'' 4K

**Brand:** Apple
**Category:** Informatique
**Code (GTIN/SKU):** 3701637842663
**Canonical URL:** https://openreviews.io/en/reviews/apple/apple-imac-21-5-4k-3701637842663

## Rating: 3.3/5 ★★★☆☆ — 8 reviews analyzed
_Confidence: high_

## At a glance

Apple iMac 21.5'' 4K reviews: 3.3/5 based on 8 analyzed reviews, updated September 8, 2026.

Criticized: overall performance and screen reliability.

8 reviews analyzed, all published on other sites.
Other sites: 1 source, 8 reviews, average rating 3.3/5.
How we count reviews: https://openreviews.io/en/methodology

## AI summary

This 21.5-inch all-in-one computer with a 4K display is intended for basic office tasks, but its overall performance proves to be particularly disappointing for daily users. Although the machine remains functional for very light use, it suffers from significant slowdowns that manifest right from the first uses. The general slowness of the device heavily penalizes the user experience, while the screen exhibits a technical fragility characterized by the appearance of unwanted display lines.

## Weaknesses

- **Overall performance** — The machine experiences significant slowdowns and proves to be very slow on a daily basis, even during initial setup.
- **Screen reliability** — The display panel is prone to technical malfunctions, notably the appearance of vertical or horizontal lines.

## Frequently asked questions

- Why is the iMac so slow on a daily basis?
- Is this model suitable for video or photo editing?
- Is the line issue on the screen common?
- Can its fluidity be improved by adding memory?

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_Source: OpenReviews — https://openreviews.io/en/reviews/apple/apple-imac-21-5-4k-3701637842663_