Product
Samsung Galaxy M31s
Samsung Galaxy M31s
Samsung Galaxy A13 5G
Samsung Galaxy A13 5G
Battery
Charging 25W wired4.5W reverse wired 15W wired
Type Li-Po 6000 mAh Li-Po 5000 mAh
Body
Build - Glass front, plastic back, plastic frame
Dimensions 159.3 x 74.4 x 9.3 mm (6.27 x 2.93 x 0.37 in) 164.5 x 76.5 x 8.8 mm (6.48 x 3.01 x 0.35 in)
SIM Nano-SIMNano-SIM + Nano-SIM Nano-SIM
Weight 203 g (7.16 oz) 195 g (6.88 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC Yes (market/region dependent) Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, GALILEO
Radio FM radio, RDS, recording Unspecified
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 -
Resolution 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) 720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Size 6.5 inches, 102.0 cm2 (~86.1% screen-to-body ratio) 6.5 inches, 102.0 cm2 (~81.1% screen-to-body ratio)
Type Super AMOLED PLS LCD, 90Hz
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, compass Fingerprint (side-mounted), accelerometer, gyro, compass, barometer
  Virtual proximity sensing Virtual proximity sensing
Launch
Announced 2020, July 30 2021, December 02
Status Available. Released 2020, August 06 Available. Released 2021, December 03
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
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) 50 MP, f/1.8, 26mm (wide), PDAF 2 MP, f/2.4, (macro) 2 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, 128GB 4GB RAM, 128GB 6GB RAM
  UFS 2.1 -
Misc
Colors Mirage Black, Mirage Blue Black
Models SM-M317F, SM-M317F/DS SM-A136U, SM-A136U1, SM-A136W, SM-A136B, SM-S136DL
SAR 1.38 W/kg (head)     1.27 W/kg (head)     0.58 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 / 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, 12, 14, 20, 29, 30, 38, 39, 40, 41, 66
5G bands - 2, 5, 66, 77 Sub6/mmWave
Speed HSPA, LTE HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
  - 2, 5, 41, 48, 66, 71, 77 Sub6/mmWave - SM-A136U
Platform
Chipset Exynos 9611 (10 nm) Mediatek Dimensity 700 (7 nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G72 MP3 Mali-G57 MC2
OS Android 10, upgradable to Android 12, One UI 4.1 Android 11, upgradable to Android 14, One UI 6
Selfie camera
Features HDR -
Single 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm 5 MP, f/2.0, (wide)
Video 4K@30fps, 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes