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Samsung Galaxy M30s

Samsung Galaxy M31s

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

Launch
Announced	2019, September 18	2020, July 30
Status	Available. Released 2019, October 30	Available. Released 2020, August 06

Body
Dimensions	159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in)	159.3 x 74.4 x 9.3 mm (6.27 x 2.93 x 0.37 in)
Weight	188 g (6.63 oz)	203 g (7.16 oz)
Build	Glass front, plastic back, plastic frame
SIM	Nano-SIM + Nano-SIM	Nano-SIM Nano-SIM + Nano-SIM

Display
Type	Super AMOLED, 420 nits (peak)	Super AMOLED
Size	6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio)	6.5 inches, 102.0 cm2 (~86.1% screen-to-body ratio)
Resolution	1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)	1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Protection		Corning Gorilla Glass 3

Platform
OS	Android 9.0 (Pie), upgradable to Android 11, One UI 3.0	Android 10, upgradable to Android 12, One UI 4.1
Chipset	Exynos 9611 (10 nm)	Exynos 9611 (10 nm)
CPU	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU	Mali-G72 MP3	Mali-G72 MP3

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM	128GB 6GB RAM, 128GB 8GB RAM
	UFS 2.1	UFS 2.1

Main Camera
Modules	48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.2, (depth)	64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.4, (depth)
Features	LED flash, panorama, HDR	LED flash, panorama, HDR
Video	4K@30fps, 1080p@30fps, gyro-EIS	4K@30fps, 1080p@30fps, gyro-EIS

Selfie Camera
Modules	16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm	32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Features	HDR	HDR
Video	1080p@30fps	4K@30fps, 1080p@30fps

Sound
Loudspeaker	Yes	Yes
3.5mm jack	Yes	Yes

Comms
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
Bluetooth	5.0, A2DP, LE	5.0, A2DP, LE
Positioning	GPS, GLONASS, BDS	GPS, GLONASS, GALILEO, BDS
NFC	Yes (market/region dependent)	Yes (market/region dependent)
Infrared port	No	No
Radio	FM radio, RDS, recording	FM radio, RDS, recording
USB	USB Type-C 2.0	USB Type-C 2.0, OTG

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

Battery
Type	Li-Po 6000 mAh, non-removable	Li-Po 6000 mAh
Charging	15W wired	25W wired 4.5W reverse wired

Misc
Colors	Opal Black, Sapphire Blue, Pearl White	Mirage Black, Mirage Blue
SAR	0.47 W/kg (head)	1.38 W/kg (head)
SAR EU	0.49 W/kg (head)     1.13 W/kg (body)
Models	SM-M307F, SM-M307FN, SM-M307F/DS, SM-M307FN/DS, SM-M3070	SM-M317F, SM-M317F/DS
Price	About 260 EUR	About 300 EUR

Tests
Performance	AnTuTu: 152075 (v7), 180321 (v8) GeekBench: 5566 (v4.4), 1288 (v5.1) GFXBench: 8.7fps (ES 3.1 onscreen)
Display	642 nits max brightness (measured)
Audio quality	Noise -93.7dB / Crosstalk -93.2dB
Battery (old)	Endurance rating 130h