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Samsung Galaxy M51 vs Galaxy A51

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Samsung Galaxy M51 vs Galaxy A51

59 out of 100
Samsung Galaxy M51
VS
52 out of 100
Samsung Galaxy A51
Samsung Galaxy M51
Samsung Galaxy A51

Here we compared two mid-range smartphones: the 6.7-inch Samsung Galaxy M51 (with Qualcomm Snapdragon 730G) that was released on August 31, 2020, against the Samsung Galaxy A51, which is powered by Exynos 9 Octa 9611 and came out 9 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy M51
  • Comes with 3000 mAh larger battery capacity: 7000 vs 4000 mAh
  • Shows 84% longer battery life (48:46 vs 26:33 hours)
  • 32% better performance in AnTuTu Benchmark (325K versus 246K)
  • Supports higher wattage charging (25W versus 15W)
  • Faster storage type - UFS 2.1 versus UFS 2.0
  • More energy-efficient CPU – Snapdragon 730G
  • Reverse charging feature
  • 32% faster in single-core GeekBench 6 test: 675 and 513 points
  • The phone is 9-months newer
Reasons to consider the Samsung Galaxy A51
  • Slow-motion recording at 960FPS
  • More recent OS version: Android 13 versus 12
  • Weighs 41 grams less
  • The front-facing camera can record video at 4K

Review

Evaluation of Samsung Galaxy M51 and Galaxy A51 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
NanoReview Score
Final comparison evaluation

Value for money

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Galaxy M51
vs
Galaxy A51

Display

Type Super AMOLED Super AMOLED
Size 6.7 inches 6.5 inches
Resolution 1080 x 2400 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 393 ppi 405 ppi
Refresh rate 60 Hz 60 Hz
Adaptive refresh rate No No
Max rated brightness 650 nits 400 nits
HDR support No No
Screen protection Corning Gorilla Glass 3 Corning Gorilla Glass 3
Screen-to-body ratio 86.7% 87.4%
Display features - Always-On Display - Always-On Display
Display tests
RGB color space 97.6% 98.8%
PWM 255 Hz 242 Hz
Response time 8 ms 25 ms
Contrast ∞ Infinity ∞ Infinity
Peak brightness test (auto)
Galaxy M51 +6%
677 nits
Galaxy A51
638 nits

Design and build

Height 163.9 mm (6.45 inches) 158.5 mm (6.24 inches)
Width 76.3 mm (3 inches) 73.6 mm (2.9 inches)
Thickness 9.5 mm (0.37 inches) 7.9 mm (0.31 inches)
Weight 213 g (7.51 oz) 172 g (6.07 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors White, Black White, Black
Fingerprint scanner Yes, in-button Yes, in-display
Screen-to-body ratio

Performance

Tests of Samsung Galaxy M51 and Samsung Galaxy A51 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 730G Samsung Exynos 9 Octa 9611
Max clock 2200 MHz 2300 MHz
CPU cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6 cores at 1.8 GHz: Kryo 470 Silver (Cortex-A55)
- 2 cores at 2.2 GHz: Kryo 470 Gold (Cortex-A76) 		- 4 cores at 1.7 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A73
Lithography process 8 nanometers 10 nanometers
Graphics Adreno 618 Mali-G72 MP3
GPU shading units 256 54
GPU clock 700 MHz 850 MHz
FLOPS ~358.4 GFLOPS ~91.8 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
Galaxy M51 +32%
325853
Galaxy A51
246594
CPU 111824 69792
GPU 66059 55670
Memory 60319 60677
UX 84933 59872
Total score 325853 246594
3DMark Wild Life Performance
Max surface temperature 48.2 °C 42.2 °C
Stability 97% 95%
Graphics test 4 FPS 4 FPS
Graphics score 738 812

Memory

RAM
RAM size 6, 8 GB 4, 6 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 128 GB 64, 128 GB
Storage type UFS 2.1 UFS 2.0
Memory card MicroSD MicroSD
Memory card max size Up to 512 GB Up to 512 GB

Software

Operating system Android 10 (Can be upgraded to Android 12) Android 10 (Can be upgraded to Android 13)
ROM One UI 4.1 One UI 5.0
OS size 22 GB 23 GB

Battery

Capacity 7000 mAh 4000 mAh
Max charge power 25 W 15 W
Battery type Li-Ion Li-Po
Replaceable No No
Wireless charging No No
Reverse charging Yes No
Fast charging Yes (35% in 30 min) Yes (40% in 35 min)
Full charging time 1:47 hr 1:50 hr
Battery life tests
Web browsing 17:24 hr 09:34 hr
Watching video 21:35 hr 11:29 hr
Gaming 06:54 hr 05:12 hr
Standby 159 hr 83 hr
General battery life
Galaxy M51 +84%
48:46 hr
Galaxy A51
26:33 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 64 megapixels 48 megapixels
Image resolution 9248 x 6920 8000 x 6000
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 30FPS Up to 30FPS
1080p video recording Up to 30FPS Up to 30FPS
Slow motion 240 FPS (720p) 960 FPS (720p)
Angle of widest lens 123° 120°
Lenses 4 (64 MP + 12 MP + 5 MP + 5 MP) 4 (48 MP + 12 MP + 5 MP + 5 MP)
Wide (main) lens - 64 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.7", Sony IMX682 (Exmor-RS CMOS)
- Phase autofocus
- 48 MP
- Aperture: f/2.0
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX582 (Exmor-RS CMOS)
- Phase autofocus
Ultra-wide lens - 12 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- 12 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
Macro lens - 5 MP
- Aperture: f/2.4
- 5 MP
- Aperture: f/2.4
- Focal length: 40 mm
- Pixel size: 1.12 micron
Depth lens - 5 MP
- Aperture: f/2.4
- Pixel size: 1.12 micron
- 5 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/5.0" (CMOS)
Camera features - Bokeh mode
- Pro mode 		- Bokeh mode
- Pro mode
Selfie camera
Megapixels 32 megapixels 32 megapixels
Image resolution 6464 x 4864 6560 x 4928
Aperture f/2.2 f/2.2
Focal length 26 mm 26 mm
Pixel size 0.8 microns 0.8 microns
Sensor type Exmor-RS CMOS ISOCELL CMOS
Sensor size 1/2.8" 1/2.8"
Video resolution 1080p (Full HD) at 30 FPS 2160p (4K) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 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 		- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC * Yes Yes
Infrared port No No
Network
Number of SIM * 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support * No No
Hybrid slot No No
LTE Cat * 15 12
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos Yes Yes
Speakers test
Max loudness
Galaxy M51 +10%
89.9 dB
Galaxy A51
81.7 dB

Other

Category Mid-range Mid-range
Announced August 2020 December 2019
Release date September 2020 December 2019
SAR (head) 0.609 W/kg 0.596 W/kg
SAR (body) 1.446 W/kg 1.45 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint 		- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
* Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Samsung Galaxy M51 is definitely a better buy.

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