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redmi-k30-ultra
poco-c81
Display
Type
IPS_LCD
AMOLED
Size
6.9"
6.67"
Resolution
HD+
FHD+
Refresh Rate
120Hz
120Hz
Brightness
800 nits
500 nits
Protection
—
Corning Gorilla Glass 5
Platform
OS
ANDROID Android 16, up to 4 major Android upgrades, HyperOS 3
ANDROID Android 10, MIUI 12
Chipset
Unisoc T7250
Mediatek Dimensity 1000+
CPU
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Octa-core (4x2.6 GHz Cortex-A77 & 4x2.0 GHz Cortex-A55)
GPU
Mali-G57 MP1
Mali-G77 MC9
AnTuTu Score
—
—
Memory
RAM
4GB
6GB / 8GB
Storage
64GB
128GB / 256GB / 512GB
Storage Type
—
—
Card Slot
Yes
No
Camera
Main Camera
13MP
64MP f/1.9
Selfie Camera
8MP
20MP
Video (Max)
1080p@30fps
4K@30fps, 1080p@30/60/120/240/960fps; gyro-EIS
OIS
No
No
Battery
Capacity
6,300 mAh
4,500 mAh
Wired Charging
15W
33W
Wireless Charging
—
—
Fast Charging
—
—
Connectivity
Wi-Fi
Wi-Fi 5, Wi-Fi 4, Dual-band
Wi-Fi 6, Wi-Fi 5, Wi-Fi 4, Dual-band
Bluetooth
5.2
5.1
NFC
No
Yes
5G
No
Yes
USB
USB Type-C 2.0
USB Type-C 2.0
GPS
GPS, GLONASS, BeiDou, Galileo
GPS, GLONASS, BeiDou, Galileo, QZSS
Body
Dimensions
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
163.3 x 75.4 x 9.1 mm (6.43 x 2.97 x 0.36 in)
Weight
208g
213g
Build
Glass / plastic back / plastic frame
Glass (Gorilla Glass 5) / glass back / aluminum frame
Water Resist
—
—
Colors
Sky Blue, Elite Black, Sunset Gold
Moonlight White, Midnight Black, Mint Green