Lol 35,000 phones sold. Apple 5S sold 9 million on the release weekend.
Amazon Fire phone should have been an Amazon premium paid APP.
The article actually says it's 35,000 as the estimated maximum possible sales.
The Guardian article then revealed that there are between 175m and 177m smartphones in use in the USA, which suggests we're looking at about 26,000 handsets total.
This figure was then adjusted for 'under-indexing', i.e. when people might be using their phones for purposes other than just browsing the (ad-filled) web, bringing the sum up to about 33,000.
"Therefore even allowing for margins of error, it seems unlikely - based on Chikita's data and the ComScore data - that there were more than about 35,000 Fire Phones in use after those 20 days," says Charles Arthur, Guardian technology editor.