iQOO has rolled out two new Android phones in China, and both share a common obsession: cramming absurdly large batteries into slim silicon-carbon cells while keeping IP68/IP69 dust and water resistance. Meet the flagship-leaning Neo11 Ultra and the more affordable Z11S, both unveiled on August 18, 2026 and already on sale.
The Neo11 Ultra is the performance play. It runs MediaTek’s Dimensity 9500 Monster chipset, backed by iQOO’s own Q2 gaming chip for smoother frame handling, up to 16GB of LPDDR5X Ultra RAM and up to 512GB of UFS 4.1 storage. That’s a stack aimed squarely at mobile gamers who want headroom rather than compromise.
Up front, the Neo11 Ultra sports a 6.83-inch AMOLED display with a sharp 3,200×1,440px (2K) resolution and a 144Hz refresh rate. Powering it all is a 9,100mAh Si-C battery paired with 100W wired charging — a combination that promises long sessions and quick top-ups alike.
The Z11S takes the battery arms race even further. Where most phones would tap out, iQOO fits an ultra-thin 10,000mAh cell — a genuinely enormous figure for a device this size. It’s paired with 44W charging (with PD/PPS and UFCS support), so replenishment is slower than its pricier sibling but the sheer capacity should more than make up for it.
Under the hood, the Z11S opts for the Dimensity 7500 chipset, LPDDR4X RAM and UFS 3.1 storage. Its 6.83-inch display matches the Ultra’s 144Hz refresh rate and adds 2160Hz high-frequency PWM dimming to ease eye strain in low light. Like its stablemate, it carries the same IP68/IP69 ingress protection — reassuring on a mid-ranger, where such ratings are still a rarity.
Pricing keeps both phones firmly in value territory for what they offer. The Neo11 Ultra starts at CNY 3,399 (around $504 USD), while the Z11S opens at 1,799 yuan (approximately $267 USD).
Taken together, the two devices highlight a clear trend: silicon-carbon battery technology is letting manufacturers push capacity into once-unthinkable territory without ballooning thickness. A 10,000mAh phone that isn’t a brick would have sounded like fantasy a couple of years ago — now it’s a shipping product. Both phones are currently available in China.
