X100 Ultra vs X300
Winner
Vivo X300
Lifespan decides this one: the X300 is supported until Oct 2032 at $9.32 per month of safe use, while the X100 Ultra runs out in May 2029 ($21.16/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.
Value Score: X100 Ultra 65 · X300 73 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
A camera monster built around a 200MP periscope and 10x-class reach, and one of the most future-proofed phones Vivo has shipped.
Pick it if
- ✓ Mobile photography enthusiasts
- ✓ Long-term keepers
Skip it if
- ✗ Those wanting a light phone
- ✗ Buyers needing local support
A compact flagship with a genuinely long leash — 5 years of OS upgrades and 7 years of security patches make the X300 one of the longest-supported compact Android phones you can import today.
Pick it if
- ✓ compact-phone loyalists
- ✓ camera-focused buyers on a mid-flagship budget
Skip it if
- ✗ you need official US warranty and carrier support
- ✗ you require 1TB local storage
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
Both displays are effectively the same class.
The X100 Ultra's Snapdragon 8 Gen 3 is simply the faster chip.
Camera systems are comparable on paper — pick by sample photos.
6,040mAh vs 5,500mAh — the X300 lasts longer between charges.
The X300 is supported until Oct 2032 — 41 months longer than the X100 Ultra.
Overall value goes to the X300 at $9.32 per month of safe use.
Frequently asked
Is the X100 Ultra still getting updates in 2026?
Yes, comfortably. Released in May 2024 under a four-OS, five-year security policy, it remains fully in its support window with years of patches and upgrades ahead.
How long will the X100 Ultra last?
Between the Snapdragon 8 Gen 3, robust IP rating, and security support running to 2029, it is built to serve as a primary phone for four to five years.
How long will the Vivo X300 be supported?
Vivo has officially committed to 5 major Android OS updates and 7 years of security patches for the X300, dating from its October 2025 launch. That pushes its end-of-support date out to roughly October 2032, making it one of the longest-supported compact Android phones on the market.
Is the Vivo X300 available in the US?
No. Vivo does not sell the X300 through official US channels, so any US unit is a gray-market import without manufacturer warranty or guaranteed full-band 5G support on US carriers.
Full spec table
| Spec | X100 Ultra | X300 |
|---|---|---|
| Price (street) | $720 | $700 |
| Display | 6.78-inch LTPO AMOLED, 120Hz, 3000 nits peak | 6.31-inch LTPO AMOLED, 1216p, 120Hz, up to 4500 nits peak brightness |
| Chipset | Snapdragon 8 Gen 3 | MediaTek Dimensity 9500 |
| RAM | 12GB/16GB | 12GB/16GB |
| Storage | 256GB/512GB/1TB | 256GB/512GB |
| Battery | 5,500 mAh | 6,040 mAh |
| Charging | 80W wired, 30W wireless | 90W wired, 40W wireless |
| Rear cameras | 50MP main, 200MP periscope telephoto, 50MP ultra-wide | 200MP main, 50MP periscope 3x, 50MP ultra-wide |
| Dimensions | 164.1 x 75.6 x 9.2 mm | 150.57 x 71.92 x 7.95 mm |
| Weight | 229 g | 190 g |
| Water resistance | IP68/IP69 | IP68/IP69 |
| Supported until | May 2029 | Oct 2032 |
More comparisons
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.