Xiaomi 17 Ultra VS OnePlus 15
▸ WHICH ONE HOLDS UP BETTER
Xiaomi 17 Ultra holds up better here: it's rated QUESTION IT, while OnePlus 15 is BYE THE HYPE.
Verdict🟡 QUESTION IT🔴 BYE THE HYPE
The RealityDxOMark's independent lab testing gave the 17 Ultra a combined camera score of 166 (170 photo / 157 video) -- a strong result that beats the Honor Magic 8 Pro, but one that lands the phone 6th overall, behind the Huawei Pura 80 Ultra, the Vivo X300 Pro, and a tie between the Oppo Find X8 Ultra and Apple iPhone 17 Pro, according to DxOMark's own ranking as covered by Gizmochina and Phandroid. Android Central's hands-on review was more enthusiastic, calling the imaging system an upgrade that 'makes the Galaxy S26 Ultra obsolete,' and multiple outlets including PetaPixel, CineD and LeicaRumors independently confirmed the headline claim: this is the first Leica APO-certified lens on any smartphone.Less than a year after the OnePlus 15 launched, Bloomberg reported that OnePlus is ceasing consumer phone operations in the US and Europe entirely — a major business retreat, not a rumor. That means anyone buying the OnePlus 15 in those markets is buying into a brand that has already announced it's stepping away from after-sales support, software updates, and future models there.
SHORT ANSWER
Xiaomi 17 Ultra: Mostly true but oversold. The Xiaomi 17 Ultra genuinely is the first smartphone with a Leica APO-certified telephoto lens, and its camera is excellent, but independent DxOMark testing ranks it 6th overall, behind rivals like the Vivo X300 Pro, not the outright best camera phone the marketing implies.
OnePlus 15: OnePlus confirmed it is ceasing operations in the US and Europe just months after the OnePlus 15 launched there — a real business risk for anyone buying it in those markets, regardless of the hardware's specs.