Samsung Galaxy A51 vs Realme 6

52 out of 100

55 out of 100

Here we compared two mid-range smartphones: the 6.5-inch Samsung Galaxy A51 (with Exynos 9 Octa 9611) that was released on December 12, 2019, against the Realme 6, which is powered by MediaTek Helio G90T and came out 3 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Differences
Review
Specs
Benchmarks
Battery life
Camera
Comments

Key differences

An overview of the main advantages of each smartphone

Reasons to consider the Samsung Galaxy A51

Delivers 48% higher peak brightness (638 against 431 nits)
More recent OS version: Android 13 versus 11
Slow-motion recording at 960FPS
Super AMOLED display (versus competitor''s IPS LCD)
More energy-efficient CPU – Exynos 9 Octa 9611
Supports Dolby Atmos sound technology
Weighs 19 grams less
The front-facing camera can record video at 4K

Reasons to consider the Realme 6

Higher display refresh rate – 90 Hz
63% better performance in AnTuTu Benchmark (402K versus 246K)
Shows 30% longer battery life (34:26 vs 26:33 hours)
Comes with 300 mAh larger battery capacity: 4300 vs 4000 mAh
Supports higher wattage charging (30W versus 15W)
Faster storage type - UFS 2.1 versus UFS 2.0
37% faster in single-core GeekBench 6 test: 701 and 513 points

Review

Evaluation of Samsung Galaxy A51 and Realme 6 crucial features

Display

Screen quality, color accuracy, brightness

Galaxy A51

Realme 6

Camera

Photo and video recording quality

Galaxy A51

Realme 6

Performance

CPU and memory performance (apps, system)

Galaxy A51

Realme 6

Gaming

Capabilities for playing modern games

Galaxy A51

Realme 6

Battery

Battery life, charging type and speed

Galaxy A51

Realme 6

Connectivity

Networks, ports, data transmission

Galaxy A51

Realme 6

NanoReview Score

Final comparison evaluation

Galaxy A51

Realme 6

Value for money

Tests and specifications

Comparison table of technical specifications and tests

Phone:

Galaxy A51

Realme 6

Display

Type	Super AMOLED	IPS LCD
Size	6.5 inches	6.5 inches
Resolution	1080 x 2400 pixels	1080 x 2400 pixels
Aspect ratio	20:9	20:9
PPI	405 ppi	405 ppi
Refresh rate	60 Hz	90 Hz
Adaptive refresh rate	No	No
Max rated brightness	400 nits	480 nits
HDR support	No	No
Screen protection	Corning Gorilla Glass 3	Corning Gorilla Glass 3
Screen-to-body ratio	87.4%	84.1%
Display features	- Always-On Display	-

Display tests
RGB color space	98.8%	98.7%
PWM	242 Hz	Not detected
Response time	25 ms	25.4 ms
Contrast	∞ Infinity	991:1

Peak brightness test (auto)

Galaxy A51 +48%

638 nits

Realme 6

431 nits

Design and build

Height	158.5 mm (6.24 inches)	162.1 mm (6.38 inches)
Width	73.6 mm (2.9 inches)	74.8 mm (2.94 inches)
Thickness	7.9 mm (0.31 inches)	8.9 mm (0.35 inches)
Weight	172 g (6.07 oz)	191 g (6.74 oz)
Waterproof	No	No
Rear material	Plastic	Plastic
Frame material	Plastic	Plastic
Colors	White, Black	White, Blue
Fingerprint scanner	Yes, in-display	Yes, in-button

Screen-to-body ratio

Galaxy A51 +4%

87.4%

Realme 6

84.1%

Performance

Tests of Samsung Galaxy A51 and Realme 6 in the benchmarks

SoC
Chipset	Samsung Exynos 9 Octa 9611	MediaTek Helio G90T
Max clock	2300 MHz	2050 MHz
CPU cores	8 (4 + 4)	8 (2 + 6)
Architecture	- 4 cores at 1.7 GHz: Cortex-A53 - 4 cores at 2.3 GHz: Cortex-A73	- 6 cores at 2 GHz: Cortex-A55 - 2 cores at 2.05 GHz: Cortex-A76
Lithography process	10 nanometers	12 nanometers
Graphics	Mali-G72 MP3	Mali-G76 MP4
GPU shading units	54	144
GPU clock	850 MHz	800 MHz
FLOPS	~91.8 GFLOPS	~230.4 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)

Galaxy A51

513

Realme 6 +37%

701

Geekbench 6 (Multi-Core)

Galaxy A51

1568

Realme 6 +18%

1846

AnTuTu Benchmark 10

Galaxy A51

246594

Realme 6 +63%

402779

CPU	69792	131692
GPU	55670	95998
Memory	60677	84006
UX	59872	88308
Total score	246594	402779

3DMark Wild Life Performance

Galaxy A51

812

Realme 6 +60%

1302

Max surface temperature	42.2 °C	42.9 °C
Stability	95%	98%
Graphics test	4 FPS	7 FPS
Graphics score	812	1302

Memory

RAM
RAM size	4, 6 GB	4, 8 GB
Memory type	LPDDR4X	LPDDR4X
Memory clock	1866 MHz	1866 MHz
Channels	2	2

Storage
Storage size	64, 128 GB	128 GB
Storage type	UFS 2.0	UFS 2.1
Memory card	MicroSD	MicroSD
Memory card max size	Up to 512 GB	Up to 256 GB

Software

Operating system	Android 10 (Can be upgraded to Android 13)	Android 10.0 (Can be upgraded to Android 11.0)
ROM	One UI 5.0	Realme UI 2
OS size	23 GB	13 GB

Battery

Capacity	4000 mAh	4300 mAh
Max charge power	15 W	30 W
Battery type	Li-Po	Li-Ion
Replaceable	No	No
Wireless charging	No	No
Reverse charging	No	No
Fast charging	Yes (40% in 35 min)	Yes (100% in 55 min)
Full charging time	1:50 hr	0:55 hr

Battery life tests
Web browsing	09:34 hr	13:07 hr
Watching video	11:29 hr	11:20 hr
Gaming	05:12 hr	05:29 hr
Standby	83 hr	126 hr

General battery life

Galaxy A51

26:33 hr

Realme 6 +30%

34:26 hr

Camera

Specs and camera test of smartphones

Main camera
Matrix	48 megapixels	64 megapixels
Image resolution	8000 x 6000	9248 x 6920
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 60FPS
Slow motion	960 FPS (720p)	240 FPS (720p)
Angle of widest lens	120°	119°
Lenses	4 (48 MP + 12 MP + 5 MP + 5 MP)	4 (64 MP + 8 MP + 2 MP + 2 MP)
Wide (main) lens	- 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	- 64 MP - Aperture: f/1.8 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/1.72", Samsung Bright S5KGW1 (ISOCELL Plus CMOS) - Phase autofocus
Ultra-wide lens	- 12 MP - Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.12 micron	- 8 MP - Aperture: f/2.3 - Focal length: 13 mm - Pixel size: 1.12 micron - Sensor: 1/4.0" (CMOS)
Monochrome lens	-	- 2 MP - Aperture: f/2.4 - Focal length: 22 mm - Pixel size: 1.75 micron - Sensor: 1/5" (CMOS)
Macro lens	- 5 MP - Aperture: f/2.4 - Focal length: 40 mm - Pixel size: 1.12 micron	- 2 MP - Aperture: f/2.4 - Focal length: 22 mm - Pixel size: 1.75 micron - Sensor: 1/5.0" (CMOS)
Depth lens	- 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	16 megapixels
Image resolution	6560 x 4928	4920 x 3264
Aperture	f/2.2	f/2.0
Focal length	26 mm	26 mm
Pixel size	0.8 microns	1 microns
Sensor type	ISOCELL CMOS	CMOS
Sensor size	1/2.8"	1/3.1"
Video resolution	2160p (4K) at 30 FPS	1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard	Wi-Fi 5 (802.11 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	PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP	LE, 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 *	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 *	12	6
5G support	No	-

Sound

Speakers	Mono	Mono
Headphone audio jack	Yes	Yes
FM radio	Yes	Yes
Dolby Atmos	Yes	No

Speakers test

Max loudness

Galaxy A51

81.7 dB

Realme 6 +7%

87.4 dB

Other

Category	Mid-range	Mid-range
Announced	December 2019	March 2020
Release date	December 2019	March 2020
SAR (head)	0.596 W/kg	0.71 W/kg
SAR (body)	1.45 W/kg	0.57 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

If the display, performance, gaming, and battery life are more important to you, then choose the Realme 6 . But if the camera, software, design, and sound are more of a priority – go for the Samsung Galaxy A51 .