Vivo X300 Ultra
The claim: The X300 Ultra's ZEISS telephoto system delivers professional-level zoom versatility, up to a 400mm equivalent with the extender accessory.
by Vivo
✓ Evidence agrees · Well sourced (6 sources)
By PixPause Editorial · 2 min read · Verified September 22, 2026

Partly true. Vivo's zoom claims for the X300 Ultra check out and reviewers call it among the best zoom systems on a phone, but the flagship 'professional-grade' color accuracy claim didn't hold up in independent lab testing at launch, with Notebookcheck measuring significant color deviation that Vivo only corrected with a later software update.
Make your guess on the slip to reveal the answer- "The X300 Ultra's ZEISS telephoto system delivers professional-level zoom versatility, up to a 400mm equivalent with the extender accessory."✓ HOLDS
- "vivo Refined Color, benchmarked against professional cameras, delivers accurate color reproduction."✕ FALSE
BUYING THE HYPE
▸ HYPE VS REALITY
Vivo marketed the X300 Ultra's new 12-channel color-sensing camera and 'vivo Refined Color' system, co-engineered with ZEISS, as delivering color reproduction 'benchmarked against professional cameras' -- on top of a ZEISS APO telephoto system that reaches a claimed 400mm-equivalent zoom with an accessory lens.
Reviewers broadly confirmed the zoom system: PetaPixel called Vivo's color science 'arguably the best in the industry' overall and found the telephoto genuinely capable of a 'just crazy' 1,600mm-equivalent hybrid zoom handheld, while GSMArena's lab tests praised the native 85mm telephoto's 'high contrast and vivid colors.' But Notebookcheck's independent color-accuracy testing of the flagship new 12-channel color sensor found the opposite of 'professional accuracy' at launch, measuring 'very high measured deviations and pronounced brightening of the colors for a high-end smartphone' -- a flaw serious enough that Notebookcheck flagged it as one of the phone's few real weaknesses despite an otherwise glowing review. Vivo subsequently shipped a software update that Notebookcheck confirmed improved the color reproduction, meaning the initial marketing claim didn't match the shipping product until a patch arrived.
The zoom hardware lives up to the hype -- reviewers across outlets independently rate it among the best zoom systems on a phone in 2026. But the marquee new 'professional-grade' color-accuracy claim didn't hold at launch: Notebookcheck's lab measurements found significant color deviation and brightening that Vivo only fixed with a later software update.
This verdict would change if new, credible evidence emerged contradicting the claim "The X300 Ultra's ZEISS telephoto system delivers professional-level zoom versatility, up to a 400mm equivalent with the extender accessory." — for example, an independent test or investigation finding the opposite of what's currently confirmed.
▸ CLAIM CHECK
- Vivo X300 Ultra Review: The Versatility Here Is Just Ridiculous — PetaPixel found the hybrid zoom reaching a '1,600mm equivalent' handheld, calling the telephoto versatility 'just crazy.'
- Vivo X300 Ultra Review: Best 2026 camera smartphone with a surprising number of weaknesses — Notebookcheck's lab measurements found 'very high measured deviations and pronounced brightening of the colors' from the new 12-channel color sensor at launch, later improved via a software update.
Scorecard AI opinion ⓘ
▸ THE EVIDENCE ON YOUTUBE
The all new vivo X300 Ultra and X300 FE Launch Event
vivo X300 Ultra review: A tighter perspective
GSMArena Official · ~2M subscribers
Vivo X300 Ultra Review: As Good as it Gets.
TechNick
Vivo X300 Ultra Long Term Review: Still Worth the Hype?
Through Jermaine's Lens
Vivo X300 Ultra Review: Moving Pictures
ben's gadget reviews
▸ FAQ
Does the Vivo X300 Ultra's camera really match professional cameras?
The zoom hardware does -- multiple outlets independently praise its versatility. But Notebookcheck's lab testing found the new color-sensing camera showed significant color deviation and brightening at launch, contradicting the 'professional accuracy' marketing until Vivo patched it via a software update.
Was the Vivo X300 Ultra's color issue fixed?
Yes. Notebookcheck reported that a subsequent Vivo software update improved the camera's color reproduction and power management, and it updated its review score accordingly.