MS and Sony both are. They both have large enough gaming footprints to be able to pull off mobile, though I doubt MS would do it without using assy Windows Phones. 

Doesnt Sony have a mobile game that rakes in tons of money? Maybe sticking to mobile software is better.

No, man. Not because they will listen to me. CPU architecture dictates these confines, not I. There is physically no hardware now that can recreate the performance requirements of PS4 in a mobile factor. 

Furthermore, gaming phones never caught anywhere. Name one successful gaming phone, ever. They are a niche product and cannot receive the kind of exclusive, dedicated and specialist third party support that is required to make them viable.

Who will develop a bespoke game for a mobile knowing they won't be able to port it to the wider mobile community? 

By all means Sony could try another handheld at some point. But a gaming phone is out of the question unless they can figure out how to keep it enticing price-wise and supported.

Maybe you are right , they just need to lend the PS brand to the Phones division . And let the games studio make the games. But they need to make some exclusive games as well that is not available for other android phones, or perhaps they can just copied how exclusives worked of Nvidia Shield Consoles which is a streaming and android consoles, that has an exclusives as well.

And also they need a powerful GPU or CPU for the smart phones to make a difference from other smart phones  and targeting hardcore gaming consoles like Razer Phones and ASUS ROG. 

Lol at everyone who thinks that Sony should make a Playstation phone. There is zero need. It would only serve to lose them even more money on their mobile division.

Of course, many of the people advocating it just want Sony to make them their dream phone rather than actually focus on the logistics of developing such a expensive device only to appeal to such a limited audience.

Actually PS brand is wasted if it's just sitting on console platform. Sony need to learn from Apple 

Yeah. For sure. That's why Sony sold so many Vitas. Because it had the Playstation brand. Because putting the Playstation Brand on devices that people don't want to buy is good for a brand's image. That's why Nintendo brings up the Virtual Boy so much when talking about their product history,

The PlayStation brand is wasted by not putting "Playstation" branding on things that no one would consider to be "Playstations". A "gaming phone" would just be a new verison of the Xperia Play, and obviously run android. I'm not sure people are willing to put upwards of $700-$1000 towards a "gaming phone" that offers marginally better performance than an iPhone or Galaxy, likely uses extremely similar architecture, plays 99% of the same games, and maybe has a few exclusives. Because realistically, that's the phone you're getting.

People can dream of Sony developing an X86-based phone that plays PS4 games all they like. That's very clearly and obviously not happening. The technology isn't there at the pricepoint that people might actually buy the thing. Have you guys stopped and asked yourself how many Razer Phones they've sold, or how many ROG Phones Asus will sell? Does anyone honstly expect either of those to sell over 500K units? FIrst reports have the Razer sales at 45K units its first two months with the expectations to sell 250-300K units its first year. Do those look like the kind of numbers that would pique Sony's interest? Google isn't pleased with the fact that the Pixel *only* sold 4 million units in 2017, and that phone has far more mass appeal than any Playstation phone would have. Why should Sony put the investment in when the ROI is so tiny?

A Playstation handheld, maybe, but a Playstation phone is pointless in my opinion.

It's really hard to get into this market after the consolidation of Apple Store and Google store. I can't see anybody buying a Sony phone, without android and only Playstation games. Even Sony fans wouldn't buy it in my opinion. In my case, I'd have to own two phones, because I wouldn't get rid of my iphone, I need its apps.

I guess every big corporation in the world is right now trying to find a way to sell phones, but without a store, it's sort of impossible. One has to give up its own store ending up selling Android instead which is not always ideal.

Because PlayStation is gamer brand and pixel is a general brand  , simple as it is.  

Gamer brands like "Republic of Gamers" and "Razer"? The phones who are expected to sell less than 500K units in a year? Those "gamer brands". I mean, sure, they're not exactly Sony Playstation big, but they're also not "Makers of the only Phone OS that can compete with Apple" big that Google is. Let's be honest. Do you think it's a worthwhile investment for Sony to make a Playstation phone if it's going to sell less than 5 million units for year? Considering they're disappointed with the fact that they only sold 13.5 million cell phones in FY 2018, and only estimate to sell 9 million in FY 2018, I just don't see it.

No, I feel like it would flop worse than the vita did.