I think the general consensus on the the current gen is none of them have stellar audio performance. I've never heard an Asus Rog (no microSD?), but the Sony 1 V is very good. The speakers are kinda stellar. Bluetooth very good. But wired I use a Dragonfly Cobalt, which does sound better from the Sony than my LG (V20/G8). Or better yet, from my Walkman![]()
I've had my Sony Xperia 10 IV (the latest "10 V" has virtually identical specs) for almost 10 months and I use mine with my Hidizs S9 Pro DAC-AMP dongle when I have over-ear headphones plugged in and probably planar magnetic IEMs too if I ever get one in the future.
The reason why I went for the Xperia 10 IV/V is the battery life.
It's basically iPhone 13/14 Pro Max class battery life crammed inside of a iPhone 13/14 Pro sized shell and since the energy efficiency of the Snapdragon 695 is very similar to Apple A15/A16 you get 30-50% longer battery life across the board.

That's 23 hours of tested medium-light use (16 on the iPhone Pros) for surviving a transpacific flight with enough left for a full day of use and at least 8 days on standby with "STAMINA MODE" (5.5 days on battery saver on the iPhone Pros).
The longevity on STAMINA standby also makes it ideal for multi-day backpacking trips as I can also use it with GAIA GPS without cell service negating the need to carry around a dedicated GPS navigation device.
And regarding the 10 IV/V's older brother the Xperia 1 IV/V I'd love to have a phone with a 3.5-5X physically variable optical zooming telephoto camera as it's so insanely awesome to have lens tech that used to only exist in point-and-shoot cameras 15 years ago now shrunk down to the size of a pea and crammed inside a pill-sized module in a phone.
Alas I find much more utility in a phone that lasts 2-4 days on a charge than one with much more performance and photography capabilities (which is why I also bought a Oppo Reno 10X Zoom around the same time) but only lasts a waking day on a charge.
All that to say that it's crazy to have a phone with perfectly decent performance that keeps up with the Galaxy S9 & OnePlus 6 while lasting 2-3X on a single charge making it the perfect DAP when paired with a DAC dongle.
Oh and and it regularly gets listed on eBay for $250-$275


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