The iPhone sits outside the top 20 when it comes to the most popular phones for browsing and buying content on the mobile web worldwide.
The data represents the activities of major brands and businesses as their consumers browse to mobile websites and buy mobile content and services.
Ray Anderson, CEO of Bango, said the stats will be of interest to businesses that monetize their mobile content and services across a wide demographic as spending by iPhone users is restricted to the Apple App Store.
Bango detected a total of 1,811 different types of handsets accessing the mobile Internet in just one month (February).
The Bango Top 20 Handset chart shows that smartphones account for 30 per cent of handsets in the Top 20.
"The iPhone has done a lot to encourage people to browse the internet on their phones," said Anderson.
"But to get the most out of their mobile marketing spend, companies who are riding the iPhone wave, attracted by its excellent features and user demographics, need to optimize their mobile websites for all phones.
"Without this, they will be missing out on the mass market."
Anderson said marketers need to choose their best channel to market and consider sales projections from the leading manufacturers.
Based on the number of handsets projected to be sold by the end of 2009, outside of Japan and Korea, he said Nokia is the leader with sales of the S60 likely to reach 300m, followed by Windows Mobile and iPhone at 40m, RIM at around 25m and Google around 5m.
"What is clear is that mobile marketers need to better understand their users," he said.