Do you think there are more people like that than there are people who use their phone as their only device, not to mention the difference between a computer which often turned off or not physically present versus a device which is almost always on and near its owner?
Among people with documents, I think there are many more who store them on a computer than who store them exclusively on a phone.
And I'm pretty sure the total amount of personal information contained in the documents of people with documents vastly exceeds the total amount of personal information contained in the phones of people with phones.
Counting number of people, there probably are a lot more who use the phone as their only device, but those people aren't generating as much in the way of personal information.
Going back upthread, we have this claim:
> I honestly doubt that most people keep more personal data on computers than they do their phones.
which was in response to this claim of mine:
> The computer has more personal data than the phone does, often by huge margins.
Two different questions have been raised:
1. Are there people who have phones, but don't have computers?
2. How much personal information is on someone's computer -- assuming they have one -- compared to their phone?
#2 is the relevant question if we're talking about "something with as much personal data as a phone". The answer is "several orders of magnitude more", and that is unaffected by the existence of people who don't have a computer.