Redmi K90 Ultra Debuts With Snapdragon 8 Elite, 165Hz AMOLED, and a Built-In Cooling Fan

Xiaomi has launched the Redmi K90 Ultra in China, a performance flagship that stuffs a Snapdragon 8 Elite chip, a 165Hz AMOLED display, a massive 8,550mAh battery, and an actual built-in cooling fan into one phone. Announced on June 30 and detailed by outlets including NoypiGeeks and Gizmochina, the K90 Ultra starts at CNY2,799 (around ₱25,900) — aggressive pricing for the hardware on offer, though there is no word yet on a Philippine release.

Key Takeaways

• The Redmi K90 Ultra runs a Snapdragon 8 Elite (3nm) chip with a secondary D2 display chip for AI gaming upscaling.
• It has a 6.83-inch 1.5K AMOLED at 165Hz and an 8,550mAh battery with 100W wired charging.
• A built-in 18.1mm active cooling fan runs at about 32dB to keep sustained performance up.
• Pricing starts at CNY2,799 (around ₱25,900) and tops out at CNY3,499 (around ₱32,300) in China.
• The phone launched in China on June 30, 2026; global or Philippine availability is unconfirmed.

An actual fan inside a phone

The K90 Ultra's signature trick is thermal. Xiaomi built an 18.1mm active cooling fan into the chassis — reported to run at a low 32dB — paired with a roughly 6,000mm2 vapor chamber. NoypiGeeks notes the system can cut temperatures by up to 10 degrees Celsius, which matters for sustaining peak clocks during long gaming sessions. The fan module itself is water-resistant (rated IPX8/IPX9), while the phone body carries IP66, IP68, and IP69 ratings.

Flagship silicon and a gaming-tuned display

Driving the phone is Qualcomm's Snapdragon 8 Elite, a 3nm chip, backed by up to 16GB of LPDDR5X RAM and up to 512GB of UFS 4.1 storage. Gizmochina highlights a secondary D2 display chip dedicated to AI upscaling and frame interpolation for games — a nod to the K90 Ultra's gaming focus.

The display is a 6.83-inch flat AMOLED at 1.5K resolution (2772 x 1280) with a 165Hz refresh rate and roughly 3,500 nits of peak brightness, plus fast 3,500Hz instant touch sampling. (NoypiGeeks' spec sheet lists a 9,500-nit figure that reads like a typo against the ~3,500-nit brightness cited elsewhere, so we go with the corroborated 3,500-nit number.) Audio comes from dual stereo speakers tuned by Bose.

Battery, cameras, and software

The 8,550mAh battery is one of the largest in a flagship this size, supporting 100W wired fast charging, 22.5W reverse wired charging, and bypass charging. On the back sits a 50MP main camera (a 1/1.55-inch sensor, f/1.68, with OIS) alongside an 8MP ultra-wide, with a 20MP front camera. The phone runs HyperOS 3 on top of Android and adds a 3D ultrasonic fingerprint scanner, Wi-Fi 7, and Bluetooth 5.4.

Pricing and the one figure that doesn't match

In China, the K90 Ultra starts at CNY2,799 (about ₱25,900) for the 12GB/256GB model, with a 12GB/512GB tier at CNY3,299 (around ₱30,500) and a top 16GB/512GB configuration at CNY3,499 (around ₱32,300), per Gizmochina's launch pricing. Worth flagging: NoypiGeeks listed a CNY2,999 starting price, but multiple independent sources — Gizmochina, FoneArena, and GSMArena — put the base model at CNY2,799, so we treat CNY2,799 as the accurate figure.

For Philippine buyers, the K90 Ultra remains a China-only launch for now. It sits in the same performance-flagship conversation as big-battery devices like the vivo X Fold6, but its combination of an active cooling fan and an 8,550mAh cell at a sub-CNY3,000 starting price is what sets it apart.

Sources:

• NoypiGeeks
• Gizmochina — Redmi K90 Ultra launched, specs and price
• FoneArena — Redmi K90 Ultra price and specifications