xiaomi Series
7.4/10
xiaomi redmi k40
Released 2019, December • NA • Dual SIM (Nano-SIM, dual stand-by)
Estimated Market Price
₹22,490
Updated Feb 2026
Display
6.67"
Super AMOLED Display, 120Hz, HDR10+, 1300 nits (peak)
Main Cam
40MP
High Res
Memory
128GB
Storage
Power
4.1k
4100 mAh
Performance Architecture
Processer / Chipset
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPU Core Configuration
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
Graphics (GPU)
Adreno 650
Benchmark Estimates
7.4 Score
Performance Tier
Mid-Range Performance
Strengths
- Large 4100mAh battery capacity
- Immersive 6.67" display experience
Trade-offs
- Entry-level camera performance
- Check detailed specs for limitations
Technical Data Sheet
Comprehensive hardware and software specifications
Data Source
Specifications are automatically aggregated from official vendor datasheets and certified databases.
General
Brand
xiaomi
Model
xiaomi redmi k40
Release Date
Released 2019, December
OS
NA
SIM
Dual SIM (Nano-SIM, dual stand-by)
Display
Type
Super AMOLED Display, 120Hz, HDR10+, 1300 nits (peak)
Size
6.67 " (inches)
Resolution
1080 x 2400 pixels (px)
Platform
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
OS
NA
Memory
Internal
128GB|128GB|256GB|256GB
Card Slot
No
Main Camera
Modules
40 MP, f/1.6, 27mm (wide), 1/1.7", PDAF, Laser AF, OIS<BR>8 MP, f/2.4, 80mm (telephoto), 1/4.0", PDAF, OIS, 3x optical zoom<BR>12 MP, f/2.2, 16mm (ultrawide), 1.4?m, AF<BR><BR>
Features
LED flash, HDR, panorama
Video
Yes
Selfie Camera
Modules
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8?m<BR>8 MP, f/2.2, 17mm (ultrawide)<BR>
Battery
Type
Li-Po 4100 mAh, non-removable
Comms
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.1, A2DP, LE
GPS
Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS
NFC
Yes
Radio
No
USB
USB Type-C 2.0, USB On-The-Go
Body
Dimensions
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
Weight
196 (grams)
SIM
Dual SIM (Nano-SIM, dual stand-by)
Market Comparison
Similar devices in this price range
