Xiaomi's Redmi brand has completed its K100 family in China, and the newest member is a bit of a curiosity: the cheapest model in the range ships with the biggest battery. The Redmi K100 was announced on October 27, 2026, with a 10,000mAh silicon-carbon cell, a 6.83-inch 165Hz display and last year's Snapdragon 8 Elite chip, priced from CNY 3,499 before launch discounts.
The phone joins the Redmi K100 Pro and K100 Pro Max, which arrived in August. Those models carry 8,580mAh and 9,070mAh batteries respectively, so the entry-level K100 now beats both of its more expensive siblings on capacity.
Key specifications
- Chipset: Qualcomm Snapdragon 8 Elite (3nm, up to 4.32GHz), plus Xiaomi's separate D2 gaming chip for frame interpolation
- Display: 6.83-inch flat AMOLED, 1280 x 2772 pixels, up to 165Hz, Dolby Vision and HDR10+
- Memory: 12GB or 16GB LPDDR5X RAM, 256GB or 512GB UFS 4.1 storage
- Rear cameras: 50MP main (1/1.55-inch, f/1.68, OIS) and 8MP ultrawide; video up to 8K at 30fps
- Front camera: 20MP
- Battery: 10,000mAh, 100W wired charging, 27W reverse wired charging
- Software: HyperOS 4 based on Android 17
- Other: ultrasonic in-display fingerprint reader, IR blaster, Wi-Fi 7, NFC, IP66/IP68/IP69/IP69K dust and water ratings
- Size and weight: 162.91 x 77.93 x 8.65mm, about 234.5g
One detail differs between reports. GSMArena lists the display's peak brightness at 3,200 nits, while Gadgets 360 and Chinese coverage of Xiaomi's launch materials quote 3,500 nits. We'd treat the higher figure as Xiaomi's official claim until we can see independent tests. GSMArena also calls the main sensor "Light Fusion 800", while other outlets call it "Light Hunter 800". Both names seem to refer to the same 50MP sensor.
Price and availability
Pre-orders are open in China, and the first sale is scheduled for October 31. Regular prices are:
| Configuration | List price | Double 11 promo price |
|---|---|---|
| 12GB / 256GB | CNY 3,499 | CNY 2,999 |
| 12GB / 512GB | CNY 4,099 | CNY 3,499 |
| 16GB / 512GB | CNY 4,499 | CNY 3,899 |
The promotional prices apply until 23:59:59 on November 11, 2026, China time. Colors are black, green and Snow Rock White. Xiaomi hasn't announced a launch outside China yet, so any global name, price or battery capacity is unknown for now.
How the battery claims stack up
Xiaomi says the cell has a 28% silicon content and reaches an energy density of 957Wh/L. It also says the battery keeps at least 80% of its capacity after 1,600 charge cycles. According to Xiaomi, that's enough for more than 34 hours of continuous short-video playback. These are Xiaomi's own figures; independent tests aren't out yet. Xiaomi's spec page also lists a minimum (rated) capacity of 9,800mAh, which is normal: brands usually advertise the typical capacity.
A 100W charger is included in the box in China. Unlike the K100 Pro models, the standard K100 doesn't list wireless charging, which is the clearest trade-off for the lower price.
What it means
Batteries in Chinese phones keep growing, and Redmi has put a 10,000mAh cell into a phone that's 8.65mm thick and still uses a flagship-class chip. The cost savings come from elsewhere. You get a two-year-old flagship processor instead of the latest Snapdragon, no telephoto camera, and no wireless charging.
For gamers and heavy users, that's an easy trade. The Snapdragon 8 Elite is still very fast, and the D2 chip lets supported games run with interpolated frames up to 165fps. For photography fans, the lack of a zoom lens makes the K100 Pro or a dedicated camera phone the better choice.
Our take
The Redmi K100 is a smart, focused phone: huge battery, fast screen and proven performance at a fair Chinese price. The big question for readers outside China is whether it will arrive globally at all. If it does, past launches suggest the battery may be smaller in some regions, especially Europe, so wait for the final regional specs before you get excited.
Sources: GSMArena, Gadgets 360, Sina Tech, Beijing Business Today via Sina, Xiaomi Planet, GSMArena (K100 Pro series)
