320×480 ad size: the mobile interstitial (portrait)

Also called full-screen mobile, mobile portrait · Not in Google’s list of image sizes

Phones and appsup to 8 products≤ 150 KBdesign at 640×960
2.05%*click rate · 5.5× the average banner
0.4%of all banner views
#1of 15 sizes by clicks

CTR and views: a sample of our own data, September 1 to October 31, 2026. Updated monthly.

320 px480 px 320×480 banner ad example: several products with prices from a Shopify store (Chequered Red Shirt)
Real size · click the ad to open itJump to the specification ↓
All 15 sizes, drawn to scalepick another size ↓
Strips320x48300x50320x50468x60728x90320x100
Rectangles180x150200x200250x250300x250250x300480x320
Tall320x480160x600300x600

320×480 at a glance

Size
320 × 480 pixels, portrait
Names
Mobile interstitial (portrait), full-screen mobile, mobile portrait
Google Ads name
not in Google's list
Screens
Phones and apps
File size
up to 150 KB (JPG, PNG, GIF)
In an Adeagle ad
8 products in a grid, or one product with its name
Share of impressions
0.4% in our network
Click rate
2.05% - 5.5× the average banner (small sample: it swings month to month)

How the 320×480 performs in our network

What we see on Adeagle
320×480 against the average banner
320×480 mobile interstitial (portrait)2.05%
Average banner0.37%
320×50 mobile leaderboard0.18%
300×250 medium rectangle0.46%
Click rate = counted clicks ÷ banner impressions, September 1 to October 31, 2026; 1,710,301 impressions of Shopify product ads in all sizes. 320×480 ranks 1 of 15 sizes by click rate and carried 0.4% of the impressions - a small sample (6,630 impressions), so its rate swings month to month.

When to use the 320×480

✓ Good forThe whole screen for your products: room for eight products with prices or one big photo with its name.
! Watch outMostly in apps; full-screen ads interrupt, so they are shown less often per person.

Design tips for 320×480 ads

  1. One strong lifestyle photo works here - it is the only size where detail shows.
  2. With eight products, put the best seller at the top left.
  3. Keep the file under 150 KB and export it at exactly 320×480; design at 640×960 so it stays sharp on phones.
  4. Show a price - it answers the first question before the click.

Sizes to run with the 320×480

One size never covers every slot. These fit the same screens:

320×500.18% click rate · phones and apps300×2500.46% click rate · desktop and phone300×500.35% click rate · phones and apps480×3201.01% click rate · phones and apps

Or see all 15 standard ad sizes on one page. Adeagle makes every one of them from your product photos, names and prices - no design work, and a new product appears in every size the day you add it.

Sources: Adeagle network data (September 1 to October 31, 2026); Google Ads image ad specifications. The example ads use the products of Adeagle's demo store.

More banners

BannersBanner ad examples

60 real banner ads in every standard size, with what each kind gets clicked - click one to land on the product.

Free toolCTR calculator

Your click-through rate, and how it compares with a typical small store.

Questions about the 320×480 ad size

A 320×480 ad is called the mobile interstitial (portrait) (also full-screen mobile, mobile portrait). It is not in Google's list of image ad sizes - it runs mostly through other ad networks and in apps.

Full screen between two app screens or levels of a game, on phones held upright.

150 KB per image in Google Ads, as a JPG, PNG or GIF; most other networks use the same limit. Design at 2× (640×960) for sharp phone screens and export at 320×480.

Adeagle shows 8 products in a grid, or one product with its name in this size, each with its price if you choose.

The whole screen for your products: room for eight products with prices or one big photo with its name. In our network it got a 2.05% click rate - 5.5× the average banner (0.37%) - and was 0.4% of all banner impressions.