Mate X6 vs X300 Ultra
Winner
Vivo X300 Ultra
Lifespan decides this one: the X300 Ultra is supported until Apr 2033 at $20.39 per month of safe use, while the Mate X6 runs out in Dec 2028 ($60.13/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.
Value Score: Mate X6 51 · X300 Ultra 73 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
A thin, camera-strong book-style foldable with satellite calling, let down only by the lack of Google.
Pick it if
- ✓ Foldable enthusiasts wanting top cameras
- ✓ HarmonyOS-comfortable premium buyers
Skip it if
- ✗ You need Google apps
- ✗ You want a lower-cost or globally supported foldable
The X300 Ultra's dual 200MP camera system and semi-solid-state battery make it Vivo's most ambitious phone yet, but it only just went on sale globally, so its full multi-year support window is still ahead of it.
Pick it if
- ✓ zoom-obsessed photographers
- ✓ buyers who want the newest flagship camera hardware
Skip it if
- ✗ you need US warranty coverage
- ✗ you want a slim, light phone
The lifespan decider
When specs are close, support length decides it — this is what each phone costs per month of safe use.
Category by category
The X300 Ultra's screen is the better one — 6.82-inch ltpo amoled, 120hz, up to 4500 nits peak brightness.
The X300 Ultra's Qualcomm Snapdragon 8 Elite Gen 5 is simply the faster chip.
The X300 Ultra has the stronger camera system — same lens count, higher-grade sensors.
6,600mAh vs 5,110mAh — the X300 Ultra lasts longer between charges.
The X300 Ultra is supported until Apr 2033 — 53 months longer than the Mate X6.
Overall value goes to the X300 Ultra at $20.39 per month of safe use.
Frequently asked
What kind of foldable is the Mate X6?
It is a book-style (inward-folding) foldable with a 7.93-inch internal display and a 6.45-inch cover screen, powered by the Kirin 9020 with 5G.
Does the Mate X6 have Google services?
No. It runs HarmonyOS 5 with the Huawei AppGallery and no Google Mobile Services, so the Play Store and Google apps aren't preinstalled.
How long will the Vivo X300 Ultra be supported?
Vivo hasn't published a separate written policy specific to the X300 Ultra at the time of writing, but based on the X300 and X300 Pro's official 5-year OS/7-year security commitment, buyers can reasonably expect the same, projecting support into around 2033.
Is the X300 Ultra sold in the US?
No. It launched in China in March 2026 and expanded to Europe, India, and parts of Asia and the Middle East by May 2026, but Vivo has not brought it to the US market, so any US unit is an import without official warranty.
Full spec table
| Spec | Mate X6 | X300 Ultra |
|---|---|---|
| Price (street) | $1700 | $1650 |
| Display | 7.93-inch foldable LTPO OLED main (2440x2240, 120Hz) + 6.45-inch LTPO OLED cover (120Hz) | 6.82-inch LTPO AMOLED, 120Hz, up to 4500 nits peak brightness |
| Chipset | HiSilicon Kirin 9020 | Qualcomm Snapdragon 8 Elite Gen 5 |
| RAM | 12GB/16GB | 16GB |
| Storage | 256GB/512GB/1TB | 512GB/1TB |
| Battery | 5,110 mAh | 6,600 mAh |
| Charging | 66W wired, 50W wireless, reverse wireless | 100W wired, 40W wireless |
| Rear cameras | 50MP main (variable aperture f/1.0-4.0, OIS), 40MP ultra-wide, 48MP telephoto 4x periscope OIS | 200MP main, 200MP periscope 3.7x, 50MP ultra-wide |
| Dimensions | Unfolded 156.0 × 144.1 × 4.6 mm; folded 156.0 × 73.7 × 9.85 mm | 163.0 x 76.8 x 8.2-8.5 mm |
| Weight | 239 g | 232 g |
| Water resistance | IP68/IP69 | IP68/IP69 |
| Supported until | Dec 2028 | Apr 2033 |
More comparisons
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.