Samsung Galaxy M31 vs Samsung Galaxy M51

Phones Images

PHONES
Phone Names	Samsung Galaxy M31	Samsung Galaxy M51

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
Speed	HSPA, LTE	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 400/50 Mbps
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE

Launch
Announced	2020, February 25. Released 2020, March 05	2020, August 31. Released 2020, September 11
Status	Discontinued	Discontinued

Body
Build	Glass front (Gorilla Glass 3), plastic back, plastic frame	Glass front (Gorilla Glass 3+), plastic back, plastic frame
Dimensions	159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)	163.9 x 76.3 x 9.5 mm (6.45 x 3.00 x 0.37 in)
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM
Weight	191 g (6.74 oz)	213 g (7.51 oz)

Display
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass 3+
Resolution	1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)	1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size	6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio)	6.7 inches, 108.4 cm2 (~86.7% screen-to-body ratio)
Type	Super AMOLED, 420 nits (peak)	Super AMOLED Plus

Platform
CPU	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)	Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
Chipset	Exynos 9611 (10 nm)	Qualcomm SDM730 Snapdragon 730G (8 nm)
GPU	Mali-G72 MP3	Adreno 618
OS	Android 10, upgradable to Android 12, One UI 4.1	Android 10, upgradable to Android 12, One UI 4.1

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM	128GB 6GB RAM, 128GB 8GB RAM
	UFS 2.1	-

Main Camera
Features	LED flash, panorama, HDR	LED flash, panorama, HDR
Quad	-	64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens
Triple	64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens	-
Video	4K@30fps, 1080p@30fps, gyro-EIS	4K@30fps, 1080p@30fps

Selfie camera
Features	HDR	HDR
Single	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video	4K@30fps, 1080p@30fps	4K@30fps, 1080p@30fps

Sound
3.5mm jack	Yes	Yes
35mm jack	Yes	Yes
Loudspeaker	Yes	Yes

Comms
Bluetooth	5.0, A2DP, LE	5.0, A2DP, LE
NFC	Yes (market/region dependent)	Yes
Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GLONASS, GALILEO, BDS
Radio	FM radio, RDS, recording	FM radio, RDS
USB	USB Type-C 2.0	USB Type-C 2.0, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct

Features
Sensors	Fingerprint (rear-mounted), accelerometer, gyro, compass	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
	Virtual proximity sensing	-

Battery
Charging	15W wired	25W wired, 100% in 115 min Reverse wired
Type	Li-Po 6000 mAh	Li-Po 7000 mAh

Misc
Colors	Ocean Blue, Space Black, Red	Celestial Black, Electric Blue, White
Models	SM-M315F, SM-M315F/DS, SM-M315F/DSN	SM-M515F, SM-M515F/DSN
Price	About 310 EUR	About 470 EUR
SAR	0.52 W/kg (head)     0.69 W/kg (body)	1.38 W/kg (head)
SAR EU	0.48 W/kg (head)     1.13 W/kg (body)	0.61 W/kg (head)     1.45 W/kg (body)

Pricing
128GB 6GB RAM	C$ 885.00	-
RENEWED	£ 199.00	-

Tests
Battery life	-	Endurance rating 156h
Camera	-	Photo / Video
Display	-	Contrast ratio: Infinite (nominal)
Loudspeaker	-	-28.5 LUFS (Average)
Performance	-	AnTuTu: 266620 (v8) GeekBench: 1774 (v5.1) GFXBench: 15fps (ES 3.1 onscreen)

OUR TESTS
Battery (old)	-	Endurance rating 156h
Camera	-	Photo / Video
Display	-	677 nits max brightness (measured)
Loudspeaker	-	-28.5 LUFS (Average)
Performance	-	AnTuTu: 266620 (v8) GeekBench: 1774 (v5.1) GFXBench: 15fps (ES 3.1 onscreen)