Xiaomi Redmi K40 Ultra
Display6.67 inches OLED
ChipsetMediaTek Dimensity 1200
Main Camera64 MP
Battery5065 mAh, Li-Po Battery
Memory8 GB RAM, 128 GB
OSAndroid v11
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MediaTek Dimensity 1200
AnTuTu 11: 960,724 · Geekbench 6: 1143 / 335341
Full specifications
General
Model
K40 Ultra
Sim Type
Dual Sim, GSM+GSM
Dual Sim
Yes
Sim Size
Nano+Nano SIM
Device Type
Smartphone
Display
Type
Color OLED Screen (16M Colors)
Touch
Yes
Size
6.67 inches, 1080 x 2400 pixels, 120 Hz
Aspect Ratio
20:9
PPI
~ 395 PPI
Screen to Body Ratio
~ 86.3%
Notch
Yes, Punch Hole
Memory
RAM
8 GB
Storage
128 GB
Card Slot
No
Connectivity
GPRS
Yes
EDGE
Yes
3G
Yes
4G
Yes
5G
Yes
VoLTE
Yes, Dual Stand-By
Wifi
Yes, with wifi-hotspot
Bluetooth
Yes, v5.2
USB
Yes, USB-C
USB Features
USB Tethering, USB on-the-go, USB Charging
Extra
GPS
Yes with A-GPS, Glonass
Fingerprint Sensor
Yes, In Display
Face Unlock
Yes
3.5mm Headphone Jack
USB Type-C
Dust Resistant
Yes
Camera
Rear Camera
64 MP ƒ/1.7-2.4 · 8 MP · 2 MP
OIS
Yes
Auto Focus
Yes
Features
Digital Zoom, Auto Flash, Face detection, Touch to focus
Video Recording
1080p @ 30 fps FHD
Flash
Yes, LED
Front Camera
16 MP · Primary Camera · Punch Hole, Screen Flash
Front Video Recording
1080p @ 30 fps FHD
Technical
OS
Android v11
Chipset
MediaTek Dimensity 1200
CPU
3 GHz, Octa Core Processor
Core Details
1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55
GPU
Mali-G77 MC9
Java
No
Browser
Yes
Multimedia
Email
Yes
Music
Yes
Video
Yes
FM Radio
Yes
Document Reader
Yes
Battery
Type
Non-Removable Battery
Size
5065 mAh, Li-Po Battery
Fast Charging
Yes, 67W Fast Charging
Specifications compiled from Smartprix. Last updated 2026-09-29.
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