Home Phone comparison Xiaomi Redmi Note 11 and Samsung Galaxy A51 - Which is better?

Xiaomi Redmi Note 11 vs Samsung Galaxy A51

50 out 100
Xiaomi Redmi Note 11
VS
41 out 100
Samsung Galaxy A51
Xiaomi Redmi Note 11
Samsung Galaxy A51

Compared 2 smartphones : Xiaomi Redmi Note 11 Manufactured in January, 2022, with display 6.43 with chipsetQualcomm Snapdragon 680, vs Samsung Galaxy A51, Manufactured in December, 2019 with chipsetSamsung Exynos 9 Octa 9611. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi Note 11
  • Higher pixel density: 409ppi
  • Higher refresh rate: 90Hz
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy A51
  • Larger display: 6.5in
  • Lighter design: 172g vs 179g
  • Supports Dolby Atmos

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/64 GB
- 6/128 GB		 - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Xiaomi Redmi Note 11 and Samsung Galaxy A51
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi Redmi Note 11
vs
Samsung Galaxy A51

Display

Display quality comparison
Type AMOLED Super AMOLED
Size 6.43 in 6.5 in
Resolution 1080x2400 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 409 ppi 405 ppi
Refresh rate 90 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 700 nits 400 nits
HDR support No No
Screen-to-body ratio 84.5 % 87.5 %
Features - DCI-P3
- Always-On Display		 Always-On Display
Display test
Peak brightness (auto)
Xiaomi Redmi Note 11
736 nits
Samsung Galaxy A51
631 nits
sRGB gamut95.1 %98.8 %
PWM (Flicker)171 Hz242 Hz
Response time2 ms25 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [Xiaomi Redmi Note 11], [Samsung Galaxy A51]

Design & Build

Design and ergonomics comparison
Height 159.87 mm (6.29 in) 158.5 mm (6.24 in)
Width 73.87 mm (2.91 in) 73.6 mm (2.9 in)
Thickness 8.09 mm (0.32 in) 7.9 mm (0.31 in)
Weight 179 g (6.31 oz) 172 g (6.07 oz)
Water resistance IP53 No
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Gray
- Blue		 - White
- Black
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Xiaomi Redmi Note 11
84.5 %
Samsung Galaxy A51
87.5 %

Performance

Testing Xiaomi Redmi Note 11 and Samsung Galaxy A51 In benchmarks
Processor
Chipset Qualcomm Snapdragon 680 Samsung Exynos 9 Octa 9611
Max Frequency 2400 MHz 2300 MHz
CPU Cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4/1.9 (Kryo 265 Silver (Cortex-A53))
- 4/2.4 (Kryo 265 Gold (Cortex-A73))		 - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
Process TSMC Samsung
Transistor Size 6 nm 10 nm
Neural Processor Hexagon 686 Yes
Graphics Adreno 610 Mali-G72 MP3
GPU Cores 128 54
GPU Frequency 1114 MHz 850 MHz
FLOPS 284 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi Note 11
558
Samsung Galaxy A51
512
Geekbench 6 (Multi-Core)
Xiaomi Redmi Note 11
1613
Samsung Galaxy A51
1556
Geekbench 6 (Single-Core)558512
Geekbench 6 (Multi-Core)16131556
AnTuTu 10
AnTuTu 10
Xiaomi Redmi Note 11
306813
Samsung Galaxy A51
268760
CPU10339483857
GPU3921745166
Memory8829163828
UX7591175909
NanoReview Score306813268760
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi Note 11
441
Samsung Galaxy A51
812
Max Surface Temp.36.5 °C42.2 °C
Stability98 %95 %
Graphics Test2 fps4 fps
Graphics Score441812
Sources: 3DMark [Xiaomi Redmi Note 11], [Samsung Galaxy A51]
PCMark 3.0
PCMark 3.0
Xiaomi Redmi Note 11
7169
Samsung Galaxy A51
n/a
Writing score8451n/a
Web score6774n/a
Video editing3902n/a
Data manipulation6045n/a
NanoReview Score7169n/a

Memory

RAM
RAM Size - 4 GB
- 6 GB		 - 4 GB
- 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		- 64 GB
- 128 GB
Storage TypeUFS 2.2UFS 2.0
Memory CardMicroSDMicroSD

Software

OS Android 11 (Upgradeable to Android 13) Android 10 (Upgradeable to Android 13)
OS Size 18.7 GB 23 GB
UI Skin HyperOS 1.0 One UI 5.1

Battery

Volume 5000 mAh 4000 mAh
Max Charging Power 33 W 15 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (51% in 30 min) Yes (40% in 35 min)
Full Charge Time 1:18 h 1:50 h
Battery Life Test
Battery Life
Xiaomi Redmi Note 11
24:01
Samsung Galaxy A51
17:53
Web Browsing08:59 h07:15 h
Video Playback13:48 h11:25 h
Games05:50 h04:49 h
Standby Mode125 h81 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8192x6144 pixels 8000x6000 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No Yes (Up to 30 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Slow Motion 120 fps (720p) 960 fps (720p)
Wide-angle lens 118 ° 120 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP
Depth: 2 MP		 Standard: 48 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP48 MP
Aperturef/1.8f/2.0
Focal length26 mm26 mm
SensorSamsung JN1Sony IMX582
Sensor size1/2.761/2
Pixel size0.64 μm0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MP12 MP
Aperturef/2.2f/2.2
Focal lengthn/a13 mm
SensorSony IMX355n/a
Sensor size1/4n/a
Pixel size1.14 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 13 MP 32 MP
Photo resolution 4128x3096 pixels 6560x4928 pixels
Aperture f/2.4 f/2.2
Focal length n/a 26 mm
Sensor CMOS Samsung S5KGD1
Sensor size 1/3.1 1/2.8
Pixel size n/a 0.8 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, A2DP PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Varies by region Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 900 1800 1900MHzGSM 850 / 900 / 1800 / 2100 / 2600
3G BandsWCDMA 1/2/4/5/8UMTS 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28/B38/B40/B41)LTE (B850/B900/B1800/B2100/B2600)
LTE category1312
5G SupportNoNo

Sound

Speakers Stereo Mono
3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos n/a Yes
Speaker Test
Max Volume
Xiaomi Redmi Note 11
89 dB
Samsung Galaxy A51
81.7 dB

Other

Class Mid-range Mid-range
Announced January, 2022 yr December, 2019 yr
Release Date January, 2022 yr December, 2019 yr
Launch Price ($) 179 399
Sensors - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 33 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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