Home Phone comparison Samsung Galaxy M51 and Xiaomi Redmi Note 15 Pro 5G - Which is better?

Samsung Galaxy M51 vs Xiaomi Redmi Note 15 Pro 5G

53 out 100
Samsung Galaxy M51
VS
70 out 100
Xiaomi Redmi Note 15 Pro 5G
Samsung Galaxy M51
Xiaomi Redmi Note 15 Pro 5G

Compared 2 smartphones : Samsung Galaxy M51 Manufactured in September, 2020, with display 6.7 with chipsetQualcomm Snapdragon 730G, vs Xiaomi Redmi Note 15 Pro 5G, Manufactured in August, 2025 with chipsetMediaTek Dimensity 7400 Ultra. 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 Samsung Galaxy M51
  • Supports Dolby Atmos
Reasons to choose Xiaomi Redmi Note 15 Pro 5G
  • Larger display: 6.83in
  • Higher pixel density: 443ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 211g vs 213g
  • Newer Bluetooth version: 5.4 vs 5
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 6/128 GB
- 8/128 GB		 - 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Samsung Galaxy M51 and Xiaomi Redmi Note 15 Pro 5G
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.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Samsung Galaxy M51
vs
Redmi Note 15 Pro 5G

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 6.7 in 6.83 in
Resolution 1080x2400 pixels 1220x2772 pixels
Aspect ratio 20:9 n/a
Pixel density 393 ppi 443 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 650 nits n/a
HDR support No Yes, Dolby Vision
Screen-to-body ratio 86.6 % 86.8 %
Features Always-On Display - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy M51
675 nits
Xiaomi Redmi Note 15 Pro 5G
n/a
sRGB gamut97.6 %n/a
PWM (Flicker)255 Hzn/a
Response time8 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy M51]

Design & Build

Design and ergonomics comparison
Height 163.9 mm (6.45 in) 163.3 mm (6.43 in)
Width 76.3 mm (3 in) 78.1 mm (3.07 in)
Thickness 9.5 mm (0.37 in) 7.8 mm (0.31 in)
Weight 213 g (7.51 oz) 211 g (7.44 oz)
Water resistance No IP69
Back panel Plastic n/a
Frame Plastic Plastic
Colors - White
- Black		 - White
- Black
- Blue
- Purple
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Samsung Galaxy M51
86.6 %
Xiaomi Redmi Note 15 Pro 5G
86.8 %

Performance

Testing Samsung Galaxy M51 and Xiaomi Redmi Note 15 Pro 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 730G MediaTek Dimensity 7400 Ultra
Max Frequency 2200 MHz 2600 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/1.8 (Kryo 470 Silver (Cortex-A55))
- 2/2.2 (Kryo 470 Gold (Cortex-A76))		 - 4/2 (Cortex-A55)
- 4/2.6 (Cortex-A78)
Process Samsung TSMC
Transistor Size 8 nm 4 nm
Neural Processor Qualcomm Hexagon 688 MediaTek APU 655
Graphics Adreno 618 Mali-G615 MP2
GPU Cores 256 256
GPU Frequency 700 MHz 1300 MHz
FLOPS 358.4 GFLOPS 665.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy M51
671
Xiaomi Redmi Note 15 Pro 5G
1029
Geekbench 6 (Multi-Core)
Samsung Galaxy M51
1799
Xiaomi Redmi Note 15 Pro 5G
2915
Geekbench 6 (Single-Core)6711029
Geekbench 6 (Multi-Core)17992915
AnTuTu 10
AnTuTu 10
Samsung Galaxy M51
323135
Xiaomi Redmi Note 15 Pro 5G
708424
CPU111824224809
GPU66059179080
Memory60319132205
UX84933172330
NanoReview Score323135708424
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy M51
738
Xiaomi Redmi Note 15 Pro 5G
n/a
Max Surface Temp.48.2 °Cn/a
Stability97 %n/a
Graphics Test4 fpsn/a
Graphics Score738n/a
Sources: 3DMark [Samsung Galaxy M51]

Memory

RAM
RAM Size - 6 GB
- 8 GB		 8 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1866 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity128 GB256 GB
Storage TypeUFS 2.1UFS 2.2
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 15
OS Size 22 GB n/a
UI Skin One UI 4.1 HyperOS 2.0

Battery

Volume 7000 mAh 7000 mAh
Max Charging Power 25 W 45 W
Battery Type Li-ion Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging Yes Yes
Fast Charging Yes (35% in 30 min) Yes
Full Charge Time 1:47 h n/a
Battery Life Test
Battery Life
Samsung Galaxy M51
31:29
Xiaomi Redmi Note 15 Pro 5G
n/a
Web Browsing12:03 hn/a
Video Playback16:42 hn/a
Games06:23 hn/a
Standby Mode171 hn/a

Main camera

Matrix 64 MP 50 MP
Photo resolution 9248x6920 pixels n/a
Zoom Digital Digital
Flash LED LED
Stabilization Digital Optical
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (720p) 240 fps (720p)
Wide-angle lens 123 ° 112 °
Lenses count Standard: 64 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix64 MP50 MP
Aperturef/1.8f/1.5
Focal length26 mmn/a
SensorSony IMX682n/a
Sensor size1/1.71/2
Pixel size0.8 μm1.6 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrix12 MP8 MP
Aperturef/2.2n/a
SensorSamsung S5K3L6n/a
Sensor size1/3.1n/a
Pixel size1.12 μmn/a
StabilizationDigitalDigital

Front camera

Matrix 32 MP 20 MP
Photo resolution 6464x4864 pixels n/a
Aperture f/2.2 n/a
Focal length 26 mm n/a
Sensor Sony IMX616 n/a
Sensor size 1/2.8 n/a
Pixel size 0.8 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.4
Bluetooth features LE, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode		 - Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM850, GSM900, DCS1800, PCS1900n/a
3G BandsWCDMA B1 (2100), B2 (1900), B4(AWS), B5(850), B8 (900)n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B20/B26/B28/B66)n/a
LTE category15n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Samsung Galaxy M51
89.9 dB
Xiaomi Redmi Note 15 Pro 5G
n/a

Other

Class Mid-range Mid-range
Announced August, 2020 yr August, 2025 yr
Release Date September, 2020 yr August, 2025 yr
Launch Price ($) 340 n/a
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a Yes, 45 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi Note 15 Pro 5G the clear winner in this comparison.

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