Product
Samsung Galaxy M31
Samsung Galaxy M31
Samsung Galaxy F15
Samsung Galaxy F15
Battery
Charging 15W wired 25W wired
Type Li-Po 6000 mAh 6000 mAh
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame Glass front, plastic back, plastic frame
Dimensions 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) 160.1 x 76.8 x 9.3 mm (6.30 x 3.02 x 0.37 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 191 g (6.74 oz) 217 g (7.65 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.3, A2DP, LE
NFC Yes (market/region dependent) No
Positioning GPS, GLONASS, GALILEO, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio FM radio, RDS, recording No
USB USB Type-C 2.0 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 2340 pixels, 19.5:9 ratio (~403 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~390 ppi density)
Size 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio) 6.6 inches, 106.9 cm2 (~87.0% screen-to-body ratio)
Type Super AMOLED, 420 nits (peak) Super AMOLED, 90Hz
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, compass Fingerprint (side-mounted), accelerometer, gyro, compass
  Virtual proximity sensing Virtual proximity sensing
Launch
Announced 2020, February 25 2024, March 04
Status Available. Released 2020, March 05 Available. Released 2024, March 11
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
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, f/2.4, (macro) 5 MP, f/2.2, (depth) 50 MP, f/1.8, (wide), AF 5 MP, f/2.2, (ultrawide) 2 MP, f/2.4, (macro)
Video 4K@30fps, 1080p@30fps, gyro-EIS 1080p@30fps, gyro-EIS
Memory
Card slot microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
Internal 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
  UFS 2.1 -
Misc
Colors Ocean Blue, Space Black, Red Ash Black, Groovy Violet, Jazzy Green
Models SM-M315F, SM-M315F/DS, SM-M315F/DSN SM-E156B, SM-E156B/DS
SAR 0.52 W/kg (head)     0.69 W/kg (body)     0.71 W/kg (head)    
SAR EU 0.48 W/kg (head)     1.13 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, 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
5G bands - 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed HSPA, LTE HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
Platform
Chipset Exynos 9611 (10 nm) Mediatek Dimensity 6100+ (6 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 14, One UI 6
Selfie camera
Features HDR -
Single 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm 13 MP, f/2.0, (wide)
Video 4K@30fps, 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes