Switched from Samsung S25 Ultra to OnePlus 15

Started by Ishita, Apr 10, 2026, 01:39 AM

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Ishita

I moved from the S25 Ultra to the OnePlus 15 because the S25 was only giving me 2-3 hrs of screen-on time from 100% down to 10%. I'd had the S25U for about 11 months and earlier it gave me 4-5 hrs SOT (it should have been 9-10 hrs) but I ignored it. Eventually it became unusable – I had to charge it 4-5 times a day. The OnePlus 15 now gives me solid battery life, around 10 hrs SOT, so I only need to charge once a day.



Shobha

Congrats on the new phone! Have you checked whether the battery is faulty? The SOT you're seeing is way low for an S25U. Mine easily lasts all day, at least 6-8 hrs SOT.

Dev

I was reading a post about the OnePlus 7...

Ronit


Ujjwal

I switched from OnePlus 7 Pro to the S24 Ultra... I still have the S24 Ultra. If Samsung keeps this up, I might switch back to OnePlus next year.

Rajat

Did you try resetting the S25U? Samsung's OS updates sometimes mess up battery life, and the bloatware – Samsung and Microsoft apps – is pretty heavy.

Anusha

What were you doing with your Ultra? I easily get 6 hrs SOT on my S25U.

Sharmila

Yaar, I'm really disappointed with Samsung after what you said. I've been using the S25 Ultra for a year and I get about 10 hrs SOT in normal day-to-day use. In the Indian version, when it's summer outside, the battery can't survive – it drops to just 4-5 hrs, so I have to carry a power bank. The worst part is there's no MagSafe, so I can't just stick a power bank onto it. I'm still stuck with the One UI experience and I've been a lifelong Samsung fan. I tried the iPhone 16 Pro Max and, to be fair, it's rubbish. I have a OnePlus 12 and I can't deny it's a great phone, but I dropped it and the curved display shattered completely. Congrats on your switch! Happy for you.

Balaji

Bro, I'm confused between the Sandstorm colour and Infinite Black.

Nisha

Did you try going to the service centre? Waiting 3 hours is absurd, your device must have some defect.

Mohan

I also switched from the S23 to the OP 15 last week. Welcome, bro!