vivo X300 Ultra's 400mm Teleconverter Spotted Live!

Vivo
Monday, 02 March 2026 at 09:12
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MWC never disappoints. And frankly, vivo just walked in with one of the more interesting cameras phones I've seen in a while — the X300 Ultra. Real hardware, real hands-on look. Let's get into it.
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Key Points

  • The vivo X300 Ultra features a flat display with extremely narrow bezels, abandoning the curved screen trend
  • A multi-spectral camera has been added to the rear circular module, targeting improved color accuracy and light capture
  • The 400mm teleconverter sports a visibly thicker lens barrel than previous vivo flagships — optical zoom, not digital trickery
  • Vivo's signature circular rear camera module is retained but significantly upgraded internally
  • The X300 Ultra positions itself as a serious long-distance photography flagship at MWC 2026

The Front: Finally, Flat

Vivo made a call here that I think a lot of people will appreciate. The X300 Ultra ditches the curved display. Gone. What you get instead is a flat panel with bezels so slim they border on absurd — in a good way.
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It's clean. Almost uncomfortably so.
There's something refreshing about a flagship that doesn't try to wrap the screen around your fingers. The flat design feels deliberate, and paired with those razor-thin borders, the front of this phone looks sharp in a way that curved screens sometimes undercut. Whether you prefer flat or curved is personal preference, but I'll say this — vivo clearly committed to the choice.

The Back: A Camera System That Means Business

Flip it over and things get interesting fast.
Vivo keeps its circular lens module — a design signature at this point — but the internals have seen some meaningful upgrades. A multi-spectral camera has apparently joined the party. I suppose we'll have to wait for full imaging tests to know exactly how much it contributes to color accuracy, but the intent is clear: vivo wants this sensor pulling in richer light data than conventional RGB setups allow.

The 400mm Teleconverter Is… A Lot

But here's the catch — and I mean this as a compliment.
The 400mm teleconverter on the X300 Ultra is physically imposing. The lens barrel is noticeably thicker than anything vivo has shipped before. Some folks are already calling it "cannon-style," and honestly, that's not an exaggeration. This isn't a software zoom trick. It's actual optical hardware, and it shows.
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Long-distance photography on a smartphone has always been a compromise. Vivo seems intent on changing that math entirely.

First Impressions

The X300 Ultra is shaping up to be a serious photography flagship. Flat display, multi-spectral sensor, and a 400mm teleconverter that physically announces itself — it's a bold package.
Cynical take? Vivo still needs to prove this translates into real-world image quality. Specs on a trade show floor are one thing. Performance under actual shooting conditions is another.
Still. This one's worth watching.
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