Product
Samsung Galaxy M31s
Samsung Galaxy M31s
Samsung Galaxy A23 5G
Samsung Galaxy A23 5G
Battery
Charging 25W wired4.5W reverse wired 25W wired
Type Li-Po 6000 mAh Li-Po 5000 mAh
Body
Build - Glass front (Gorilla Glass 5), plastic frame, plastic back
Dimensions 159.3 x 74.4 x 9.3 mm (6.27 x 2.93 x 0.37 in) 165.4 x 76.9 x 8.4 mm (6.51 x 3.03 x 0.33 in)
SIM Nano-SIMNano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 203 g (7.16 oz) 197 g (6.95 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.1, A2DP, LE
NFC Yes (market/region dependent) Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, GALILEO, BDS
Radio FM radio, RDS, recording No
USB USB Type-C 2.0, OTG USB Type-C 2.0
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
Display
Protection Corning Gorilla Glass 3 Corning Gorilla Glass 5
Resolution 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) 1080 x 2408 pixels, 20:9 ratio (~400 ppi density)
Size 6.5 inches, 102.0 cm2 (~86.1% screen-to-body ratio) 6.6 inches, 104.9 cm2 (~82.5% screen-to-body ratio)
Type Super AMOLED PLS LCD, 120Hz
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, compass Fingerprint (side-mounted), accelerometer, gyro, compass, barometer (USA only)
  Virtual proximity sensing Virtual proximity sensing
Launch
Announced 2020, July 30 2022, August 05
Status Available. Released 2020, August 06 Available. Released 2022, September 02
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
Quad - 50 MP, f/1.8, 26mm (wide), 1/2.76", 0.64µm, PDAF, OIS 5 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/5.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)
Triple 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF12 MP, f/2.2, 123˚ (ultrawide)5 MP, f/2.4, (macro)5 MP, f/2.4, (depth) -
Video 4K@30fps, 1080p@30fps, gyro-EIS 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
  UFS 2.1 -
Misc
Colors Mirage Black, Mirage Blue Black, White, Peach, Blue
Models SM-M317F, SM-M317F/DS SM-A236U, SM-A236U1, SM-A236B, SM-A236B/DS, SM-A236B/DSN, SM-A236E
SAR 1.38 W/kg (head)     0.68 W/kg (head)     0.57 W/kg (body)    
SAR EU - 1.49 W/kg (head)     1.25 W/kg (body)    
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, 17, 20, 26, 28, 38, 40, 41, 66 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands - 1, 3, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA/Sub6 - International
Speed HSPA, LTE HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
  - 2, 5, 30, 66, 77 SA/NSA/Sub6/mmWave - USA
Platform
Chipset Exynos 9611 (10 nm) Qualcomm SM6375 Snapdragon 695 5G (6 nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver)
GPU Mali-G72 MP3 Adreno 619
OS Android 10, upgradable to Android 12, One UI 4.1 Android 12, upgradable to Android 14, One UI 6
Selfie camera
Features HDR -
Single 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm 8 MP, f/2.0, 25mm (wide), 1/4.0", 1.12µm - USA 8 MP, f/2.2, 25mm (wide), 1/4.0", 1.12µm - International
Video 4K@30fps, 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
Tests
Battery (old) - Endurance rating 138h
Camera - Photo / Video
Display - 1328:1 contrast ratio, 508 nits max brightness (measured)
Loudspeaker - -25.9 LUFS (Very good)
Performance - AnTuTu: 318821 (v9) GeekBench: 1940 (v5.1) GFXBench: 16fps (ES 3.1 onscreen)