Samsung Galaxy M51 vs Xiaomi Redmi K50 Ultra

Samsung Galaxy M51

Xiaomi Redmi K50 Ultra

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66

LTE frequency band 1, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G network

-

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A, (2CA) Cat6, 400 Mbps download, 50 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 3), plastic back, plastic frame

Aluminium alloy, glass
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

163.9 mm

163.1 mm
Width

76.3 mm

75.9 mm
Thickness

9.5 mm

8.6 mm
Weight

213 g

202 g
Colors

Black, Blue

Black, Blue, Gray, Mercedes AMG

Display
Display type

Super AMOLED Plus

OLED
Physical size

6.7 inches

6.67 inches
Resolution

1080 x 2400 pixels

1220 x 2712 pixels
Pixel density

393 ppi

446 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 3

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass Victus
Display features

-

144Hz, HDR10+, Dolby Vision

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.2 GHz Kryo 470 Gold

Single-core 3.19 GHz Cortex-X2
CPU(second)

Hexa-core 1.8 GHz Kryo 470 Silver

Triple-core 2.75 GHz Cortex-A710
CPU(third)

Quad-core 1.8 GHz Cortex-510
Chipset

Qualcomm SDM730 Snapdragon 730G

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 618

Adreno 730
Memory RAM

6, 8 GB

8, 12 GB
Internal storage

128 GB

128, 256, 512 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

512 GB

-
Storage

UFS 2.1

UFS 3.1

Main camera
Camera type

Quad

Triple
Main camera

(wide) , 64 MP, f/1.8 , 26 mm, 1/1.73" , 0.8 µm

(wide) , 108 MP, f/1.6 , 1/1.67" , 0.64 µm
(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm

(ultrawide) , 8 MP, f/2.2 , 120˚
(macro) , 5 MP, f/2.4

(macro) , 2 MP, f/2.4
(depth) , 5 MP, f/2.4 , 1.12 µm
Primary camera resolution

9280 x 6944 pixels

12000 x 9000 pixels
Primary camera video

4K@30fps, 1080p@30fps

4K@30/60fps, 1080p@30/60/120/240/960fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, flicker sensor

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes
NavIC

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, color spectrum, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

7000 mAh

5000 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Yes (100% in 115 min)

Quick Charge 3+, 120W (100% in 19 min)
Reverse charging

Yes

-
DxOMark autonomy

96

-
DxOMark charging

61

-
DxOMark efficiency

87

-
DxOMark battery score

88

-

Samsung Galaxy M51 comparisons