Verdict: The Redmi K100 is the battery king of 2026 — a 10,000mAh silicon-carbon cell, Snapdragon 8 Elite, and a dedicated gaming chip at an expected price of around $450 make it the phone to beat this fall. Redmi's latest flagship killer launches in China on October 27, with pre-orders already live, and on paper it undercuts every gaming phone on the market.
Xiaomi's Redmi brand has confirmed the Redmi K100 launches in China on October 27 at 7:00 PM local time, joining the K100 Pro and K100 Pro Max that debuted in August. The headline: the biggest battery ever shipped in a Xiaomi phone — a 10,000mAh silicon-carbon cell Redmi calls Jinshajiang — paired with Qualcomm's Snapdragon 8 Elite and a dedicated D2 gaming chip. Here's the full breakdown of specs, price expectations, and where to buy.
Redmi K100 Specifications
| Display | 6.83-inch flat AMOLED, 1.5K, 165Hz (up to 185Hz in gaming mode), 3,500 nits peak brightness |
| Processor | Snapdragon 8 Elite (3nm) + dedicated D2 display chip |
| Battery | 10,000mAh silicon-carbon (Jinshajiang, 28% silicon, 957Wh/L), 100W wired charging |
| Rear camera | 50MP main (Light and Shadow Hunter 800 sensor); second camera unconfirmed |
| Audio | Symmetrical dual stereo speakers tuned by Bose |
| Build | Metal frame, IP68 dust and water resistance, in-display ultrasonic fingerprint |
| Software | HyperOS 4 on Android 17 |
| Colors | Firefly Green (translucent finish), more expected |
| Launch date | October 27, 2026 (China); global rollout unconfirmed, likely as POCO F9 |
| Expected price | Around CNY 3,500 (roughly $450–490) per tipster reports |
Battery: The Biggest Cell in Xiaomi History
The 10,000mAh cell is the largest Redmi has ever shipped in a K-series phone — bigger than the K100 Pro (8,580mAh) and K100 Pro Max (9,070mAh), and roughly double what most flagships carry. Using high-density silicon-carbon chemistry with 28% silicon content and 957Wh/L energy density, Redmi rates the cell for 1,600 charge cycles and stable operation down to minus 20 degrees Celsius. Despite the enormous capacity, 100W wired charging (confirmed by 3C certification) refills it in under 50 minutes. Wireless charging has not been confirmed for the standard model.
Performance: Snapdragon 8 Elite Plus a Dedicated Gaming Chip
The Snapdragon 8 Elite is a generation behind the newest silicon — rivals like the iQOO Neo12 use the Snapdragon 8 Elite Gen 5 — but Redmi compensates with its first-ever dedicated D2 display chip in a standard K-series model. The D2 handles hardware frame interpolation and upscaling, delivering native 165fps in more than 40 games while cutting power draw by an average of 1.1W in demanding titles. The 6.83-inch flat AMOLED runs at 165Hz with a 480Hz multi-finger touch reporting rate and 3,500Hz instant touch sampling.
Design and Extras: Bose Audio, IP68, Firefly Green
Redmi is pushing audio hard this generation: symmetrical dual stereo speakers co-engineered with Bose sit beside a wide horizontal camera module, and a large circular speaker grille on the rear panel underscores the pitch. The flat metal frame carries an IP68 rating — rare at this price — and the Firefly Green finish gives the phone a distinct identity. It ships with HyperOS 4 on Android 17, including Xiaomi's MiMo-powered Xiaoai assistant. Note: the 50MP main camera is confirmed; the phone is clearly not being pitched as a camera flagship.
Pros and Cons
Pros: record-breaking 10,000mAh battery; 100W fast charging; flagship-grade Snapdragon 8 Elite; dedicated D2 gaming chip with 165fps support; Bose-tuned speakers; IP68 rating; aggressive expected price near $450.
Cons: Snapdragon 8 Elite is a year-old chip, not the newest silicon; camera system modest for the class; wireless charging unconfirmed; global availability unknown; price not yet official.
Where to Buy
Pre-orders are open in China ahead of the October 27 launch. International buyers should expect a POCO-branded global version (likely the POCO F9), following the pattern of the K100 Pro series which shipped globally as the POCO F9 Pro and F9 Ultra. Grey-market importers list the phone at roughly $450–490 equivalent.
Watch: eSIM Studios on the Redmi K100's 10,000mAh battery and the 2026 battery arms race
Sources: Livemint, Gizmochina, GizChina