available Updated: Oct 2026

Xiaomi Redmi K40S

Name: Xiaomi Redmi K40S
Brand: XIAOMI
Price: 293 USD
Availability: InStock

$293 Status: available

MobGadgets reviews combine verified specifications, pricing context, and comparison analysis. Hands-on testing is stated when available. Review policy.

Display 6.67"

Chipset Snapdragon 870 5G

Camera 48

Battery 4500 mAh

Check Best Price Full Specs

Should you buy the Xiaomi Redmi K40S?

Reasons to Buy

4500 mAh battery capacity
6.67" display for media and everyday use
Snapdragon 870 5G platform for daily performance

Reasons to Avoid

Fast charging details are not yet verified.
Durability and protection details should be confirmed before purchase.

Full Specifications

Structured specifications are still being verified for this device. Showing source specs until the organized table is available.

Network
Technology: GSM / CDMA / HSPA / CDMA2000 / LTE / 5G

Launch
Announced: 2022, March 17
Status: Available. Released 2022, March 17

Body
Dimensions: 163.2 x 76 x 7.7 mm (6.43 x 2.99 x 0.30 in)
Weight: 195 g (6.88 oz)
Build: Glass front (Gorilla Glass 5), plastic back
SIM: Nano-SIM + Nano-SIM
- : Splash resistant

Display
Type: AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Size: 6.67 inches, 107.4 cm² (~86.6% screen-to-body ratio)
Resolution: 1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection: Corning Gorilla Glass 5

Platform
OS: Android 12, MIUI 13
Chipset: Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPU: Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU: Adreno 650

Memory
Card slot - No
Internal: 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
- : UFS 3.1

Main Camera
Triple: 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF, OIS
8 MP, 119˚ (ultrawide)
2 MP (macro)
Features: Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Video: 4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS

Selfie camera
Single: 20 MP, (wide)
Video: 1080p@30/120fps

Sound
Loudspeaker : Yes, with stereo speakers
3.5mm jack : No
- : 24-bit/192kHz Hi-Res audio

Comms
WLAN: Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth: 5.2, A2DP, LE
Positioning: GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
NFC: Yes
Radio: No
USB: USB Type-C 2.0, OTG

Features
Sensors: Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

Battery
Type: Li-Po 4500 mAh
Charging: 67W wired, PD3.0, QC3, 100% in 38 min

Misc
Colors: Black, Gray, Blue, Green
Price: About 260 EUR

Frequently Asked Questions

The Xiaomi Redmi K40S has Snapdragon 870 5G with 128GB/256GB storage, no card slot. That is useful buying context, but this page should be treated as specs-led analysis unless hands-on gaming tests are stated.

Fast charging support has not been verified in the structured specs yet, so confirm charging details with the seller or manufacturer before buying.