iQOO 15 vs X100 Ultra
Winner
Vivo iQOO 15
Lifespan decides this one: the iQOO 15 is supported until Oct 2032 at $8.69 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: iQOO 15 81 · X100 Ultra 65 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
The iQOO 15 undercuts most 2026 flagships on price while matching their camera and battery specs, and now carries an unusually generous 7-year security-patch promise for a sub-flagship-priced phone.
Pick it if
- ✓ value-focused performance buyers
- ✓ gamers wanting long battery life on a budget
Skip it if
- ✗ you're on a major US carrier needing full 5G bands
- ✗ you want in-country warranty service
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
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 iQOO 15's Qualcomm Snapdragon 8 Elite Gen 5 is simply the faster chip.
The X100 Ultra has the stronger camera system — same lens count, higher-grade sensors.
7,000mAh vs 5,500mAh — the iQOO 15 lasts longer between charges.
The iQOO 15 is supported until Oct 2032 — 41 months longer than the X100 Ultra.
Overall value goes to the iQOO 15 at $8.69 per month of safe use.
Frequently asked
How long will the iQOO 15 get software updates?
iQOO/Vivo officially confirmed 5 years of major Android OS upgrades and 7 years of security patches for the iQOO 15, pushing its end-of-support date to around October 2032 — longer than most rival gaming-flagship phones at this price.
Can I use the iQOO 15 in the US?
You can only get one via import, since iQOO doesn't sell it officially in the US, Canada, or Australia. It also lacks Band 12/13/14/71, so expect unreliable or 4G-only service on major US carriers.
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.
Full spec table
| Spec | iQOO 15 | X100 Ultra |
|---|---|---|
| Price (street) | $650 | $720 |
| Display | 6.85-inch 2K LTPO OLED, 144Hz, up to 6000 nits peak brightness | 6.78-inch LTPO AMOLED, 120Hz, 3000 nits peak |
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Snapdragon 8 Gen 3 |
| RAM | 12GB/16GB | 12GB/16GB |
| Storage | 256GB/512GB/1TB | 256GB/512GB/1TB |
| Battery | 7,000 mAh | 5,500 mAh |
| Charging | 100W wired, 40W wireless | 80W wired, 30W wireless |
| Rear cameras | 50MP main, 50MP ultra-wide, 50MP periscope 3x | 50MP main, 200MP periscope telephoto, 50MP ultra-wide |
| Dimensions | 163.35 x 76.8 x 8.14-8.28 mm | 164.1 x 75.6 x 9.2 mm |
| Weight | 216 g | 229 g |
| Water resistance | IP68/IP69 | IP68/IP69 |
| Supported until | Oct 2032 | May 2029 |
More comparisons
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.