> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upstackdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Avg. Pinch Zooms: Mobile Zoom Gestures

> Average pinch-to-zoom gestures per session on mobile. Often indicates interest in product images or small text.

<Tip>
  Avg. Pinch Zooms measures pinch-to-zoom gestures per session on mobile devices, often indicating interest in product images or difficulty reading small text.
</Tip>

## Formula

<Info>
  **Avg. Pinch Zooms** = **Total Pinch Zoom Events** ÷ **Session Count**
</Info>

### Formula Components

| Metric                                                                | Definition                                        |
| --------------------------------------------------------------------- | ------------------------------------------------- |
| **Total Pinch Zoom Events**                                           | Count of pinch-to-zoom gestures on mobile devices |
| [**Session Count**](/reference/metrics/funnel/sessions/session-count) | Total number of sessions                          |

| Metadata        |                         |
| --------------- | ----------------------- |
| **Type**        | Number                  |
| **Data Source** | [Upstack Pixel](/pixel) |
| **Aggregation** | Average                 |

***

## Example

Mobile sessions averaged **1.8 pinch zooms** per visit, primarily on product detail pages.

| Page Type        | Mobile Sessions | Avg. Pinch Zooms |
| ---------------- | --------------- | ---------------- |
| Product Pages    | 3,000           | 3.2              |
| Size Guide       | 500             | 4.1              |
| Collection Pages | 2,500           | 0.8              |
| Blog             | 1,000           | 0.5              |

***

## How It Works

The Upstack Pixel detects pinch-to-zoom gestures on touch devices. While zooming on product images is a positive engagement signal, excessive zooming on text or UI may indicate the content is too small or images lack detail.

***

## When to Use

| Scenario                     | Action                                      |
| ---------------------------- | ------------------------------------------- |
| High zooms on product images | Provide native image zoom functionality     |
| High zooms on text content   | Increase font size or improve mobile layout |
| Comparing product categories | Identify which products need better imagery |
| Mobile UX audit              | Ensure content is legible at default zoom   |

***

## Related Metrics

| Metric                                                                   | Relationship                            |
| ------------------------------------------------------------------------ | --------------------------------------- |
| [Avg. Swipes](/reference/metrics/funnel/sessions/avg-swipes)             | Another mobile gesture                  |
| [Avg. Interactions](/reference/metrics/funnel/sessions/avg-interactions) | Total interaction events                |
| [Intent Score](/reference/metrics/funnel/sessions/intent-score)          | Zooming on products may indicate intent |

[See all Session metrics →](/reference/metrics/funnel/sessions)