I bought the Sharp r8s pro and used it a few weeks now. Overall it's a phone i'm glad I bought for sgd$647 and not over $1000 at new flagship price. It came with a Sharp air purifier as a gift, and the air purifier is working quite well.
Some little points- has Qi2 which I only found out by accident, can input 5 fingerprints. Fingerprint is the least fussy i've seen, with a single press being enough when inputting your fingerprint.
The Good:
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- sd card slot- putting in a 512gb card gave me over 700gb, and I don't have to worry about monitoring memory nearly as much. I hate how expensive and inflexible non sd card slot phones are (one reason I did not go for r9 pro)
- quality of photos and vidoes. Pretty nice. 1 inch sensor makes a difference.
- transfer of data from my asus rog 6 to r8s was seamless, though I don't know if that's due to the sharp, the asus or both
- once most of the initial set up was done, it's mostly worked smoothly, battery is about 20% after a 13 hours day
- sound seems reasonable loud and clear
Fair:
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- camera doesn't turn on immediately but takes about half a second, like it's taking it's time.
- adjusting brightness exposure is not smooth
- 3.5mm jack- on the cheap wired earbuds I have, the sound quality is worse than my asus rog 6 pro
- apps run normally
- less phone case choices, but have a couple of unique ones which allow camera filters
- back cover feels thin and weak. If you press slightly on the back or the screen the sound distorts, as if you're pressing on the speaker/s
- supposedly 2000 nits but brightest screen is slightly less than the brightest 1000 nits of my asus rog 6. I can live with it though
- battery doesn't increase if I have plugged in the charger and still using the phone. Often I will listen to an audibook, play polytopia or similar game, maybe download something, and the battery levl never increases. I'm using the same charger from the Asus Rog 6 , where the battery would always increase very quickly in comparison
Bad:
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- battery started overheating last 2 days. Turning it off and leaving it a few minutes will solve it, currently doing an update hope it will help
- 1 time using phone outside in hot sun noticed the phone overheated- be careful
- the sound loudness has a step about 4/5, so it jumps and sometimes it's a bit hard to get the exact loudness level I want
Overall if there were no battery issues, it'd be quite a reasonable $600 phone.
EDIT 19 April-
Yesterday I saw there's an option for the battery to only charge when the screen is off and it'd been clicked on. I turned it off and it's charging when plugged in now.