Overview
The OnePlus Ace 6 Ultra is looking like one of the most exciting mid‑range performance phones of 2026, with its recent certification in China strongly hinting at an April launch. Spotted on the MIIT (Ministry of Industry and Information Technology) listing, the device is expected to land as a raw‑power‑focused machine, built for gamers and heavy users who want flagship‑like performance without the premium price tag.
If leaks hold true, OnePlus is gearing the Ace 6 Ultra to compete directly with other “Ultra”‑style gaming flagships, especially the Redmi K90 Ultra, which is rumored to share a strikingly similar spec sheet.
Expected specs and core features
According to Chinese tipster Digital Chat Station, the OnePlus Ace 6 Ultra will run on the MediaTek Dimensity 9500 chipset, a 3 nm flag‑level SoC that should handle high‑end gaming and multitasking with ease. This puts it squarely in competition with other gaming‑oriented phones built around the same platform, like the Redmi K90 Ultra, which is also tipped to use the Dimensity 9500.
The display is expected to be a large, flat, high‑resolution panel around 6.8 inches with a 165 Hz refresh rate, delivering buttery‑smooth scrolling and gaming visuals. Many reports suggest a 1.5K‑class panel, which should keep sharpness and battery efficiency in balance while still feeling “retina‑level” for most users.
For power, leaks point to a massive battery in the 8,000 mAh range, making this one of the biggest cells seen in recent gaming‑focused phones. To keep that block from charging forever, the phone is expected to support 100 W wired fast charging, letting gamers top up quickly between sessions.
How it stacks up against the Redmi K90 Ultra
The Ace 6 Ultra is being framed as a direct rival to the Redmi K90 Ultra, which is also rumored as a “Supreme Edition”‑style gaming phone. Both are expected to share the same Dimensity 9500 chipset, very high refresh‑rate displays (around 165 Hz), and batteries starting with the digit 8, suggesting similar endurance‑focused DNA.
The Redmi K90 Ultra leak also mentions a 1.5K LTPS display somewhere between 6.81 and 6.89 inches, 100 W wired charging, an active cooling fan, dual speakers, a large vibration motor, an ultrasonic fingerprint sensor, and an IP68 rating for dust and water resistance. If the Ace 6 Ultra mirrors this closely, it could bring a similar level of gaming‑oriented hardware—possibly with a slightly different cooling and audio tuning to suit OnePlus’s usual clean‑software philosophy.
Launch timing also lines up tightly: both phones are expected to debut in China in April 2026, likely as part of a mid‑year gaming‑phone battle between OnePlus and Redmi.
Design, software, and what’s still unclear
Early leaks and OnePlus’s own Ace‑series pattern suggest the Ace 6 Ultra will lean toward a slim, performance‑focused design with a strong cooling system to keep the Dimensity 9500 from throttling during long gaming sessions. There’s no official word yet on camera hardware, exact build materials, or software extras such as gaming modes or custom vibration profiles, though the Ace‑series typically emphasizes clean OxygenOS‑style software and good thermal management.
One big question mark remains: global availability. So far, all indications point to a China‑exclusive launch in April, with no clear roadmap for India or other markets yet. If OnePlus follows its usual playbook, we might see a rebadged or slightly tweaked version arrive later in countries like India, but for now the Ace 6 Ultra looks like a China‑only gaming beast.
With April fast approaching, OnePlus and Redmi are shaping up for a showdown between two “Ultra”‑branded gaming phones built around the same core hardware. If you’re chasing raw performance and long‑battery, high‑end‑gaming phones, the Ace 6 Ultra is definitely one to watch.
