300×50 at a glance
- Size
- 300 × 50 pixels, landscape
- Names
- Mobile banner, small mobile banner
- Google Ads name
- Mobile banner
- Screens
- Phones and apps
- File size
- up to 150 KB (JPG, PNG, GIF)
- In an Adeagle ad
- 6 products in a grid, or one product with its name
- Share of impressions
- 10.1% in our network
- Click rate
- 0.51% - about the average banner
When to use the 300×50
Good for: Cheap reach on phones, often in apps where other ad formats do not show.
Watch out: Tiny tiles - 42×29 pixels each - and taps by accident are common at this size.
Design tips for 300×50 ads
- Six tiles: use photos of the product alone, not lifestyle shots.
- Prices may be the only readable text; keep them short.
- Keep the file under 150 KB and export it at exactly 300×50; design at 600×100 so it stays sharp on phones.
- Show a price - across all sizes, ads with prices got more clicks than the same ads without.
How the 300×50 performs in our network
What we see on Adeagle
300×50 against the average banner
Sizes to run with the 300×50
One size never covers every slot. These fit the same screens:
- 320×50 mobile leaderboard - phones and apps, 0.33% click rate.
- 300×250 medium rectangle - desktop and phone, 0.60% click rate.
- 480×320 mobile interstitial (landscape) - phones and apps, 1.02% click rate.
- 200×200 small square - desktop and phone, 0.50% click rate.
Or see all 15 standard ad sizes drawn to scale. 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 (August 1 to September 26, 2026); Google Ads image ad specifications. The example ads use the products of Adeagle's demo store.