Xiaomi
Xiaomi Redmi K40
📱
Display
6.67"
🔋
Capacity
4520 mAh
📷
Main Camera
48 MP
💾
RAM
12 GB
⚡
Chipset
Qualcomm SM8250-AC Snapdragon 870 5G
🔌
Charging
33W
Xiaomi Redmi K40 is a smartphone released in 2021 featuring 6.67-inch display, Qualcomm SM8250-AC Snapdragon 870 5G processor, 12GB RAM, 4520mAh battery, 33W fast charging.
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The Xiaomi Redmi K40 is a smartphone from Xiaomi featuring Qualcomm SM8250-AC Snapdragon 870 5G processor, 6.67" SUPER_AMOLED, 48MP camera. Find the latest prices in Saudi Arabia, UAE, and Egypt on Wakteey. Below you'll find the full specifications, comparisons, and updated prices for the Xiaomi Redmi K40 in 2026.
If you're thinking about buying the Xiaomi Redmi K40 in 2026, here's a quick answer before you decide 👇
⚠️ Warning
This phone is outdated in 2026 and is not recommended for most users.
You can find much better performance at the same price today. 👇
- Smooth daily use ⚡
- Daily & social apps 📱
- Content creators 🤳
- Heavy gaming 🎮
- 2026 buyers — phone is outdated
Final verdict
Xiaomi Redmi K40 is an outdated phone released in 2021. We don't recommend buying it in 2026 — better options exist at the same price.
Key Specifications
Display
6.67" SUPER_AMOLED · 120Hz
Chipset
Qualcomm SM8250-AC Snapdragon 870 5G
RAM
6GB / 8GB / 12GB
Internal Storage
128GB / 256GB
Main Camera
48MP f/1.8
Capacity
4,520mAh · 33W
OS
ANDROID Android 11, MIUI 12
Features
Available Colors
Xiaomi Redmi K40 in detail
Xiaomi Redmi K40 display
The Xiaomi Redmi K40 has a 6.67-inch SUPER_AMOLED display with FHD+ resolution. Pixel density is 395 ppi. The 120 Hz refresh rate makes scrolling and gaming very smooth. Peak brightness reaches 1,300 nits.
Performance
It is powered by the Qualcomm SM8250-AC Snapdragon 870 5G (7 nm). RAM goes up to 12 GB. Storage starts at 128 GB and goes up to 256 GB (UFS 3.1), with no microSD slot.
Camera
The main rear camera is 48 MP with f/1.8 aperture and a 1/2.0" sensor. There are 3 rear cameras in total. Video tops out at 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS. The selfie camera is 20 MP.
Battery & charging
The battery is 4,520 mAh, enough for a day of moderate use. Wired charging is 33W.
Design & software
It weighs 196 g. It runs Android 11, MIUI 12.
❓Xiaomi Redmi K40 — Frequently Asked Questions
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