Product
Samsung Galaxy M31
Samsung Galaxy M31
Vivo Y28 4G
Vivo Y28 4G
Battery
Charging 15W wired 44W wired
Type Li-Po 6000 mAh 6000 mAh
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame Glass front, plastic frame, plastic back
Dimensions 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) 165.7 x 76 x 8 mm (6.52 x 2.99 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 191 g (6.74 oz) 199 g (7.02 oz)
  - IP64 dust tight and water resistant (water splashes) Notification LED round light on the back
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC Yes (market/region dependent) No
Positioning GPS, GLONASS, GALILEO, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio FM radio, RDS, recording FM radio
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, dual-band
Display
Protection Corning Gorilla Glass 3 -
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) 720 x 1608 pixels, 20:9 ratio (~264 ppi density)
Size 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio) 6.68 inches, 107.4 cm2 (~85.3% screen-to-body ratio)
Type Super AMOLED, 420 nits (peak) IPS LCD, 90Hz, 760 nits (typ), 1000 nits (HBM)
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, compass Fingerprint (side-mounted), accelerometer, proximity, compass
  Virtual proximity sensing -
Launch
Announced 2020, February 25 2024, June 15
Status Available. Released 2020, March 05 Available. Released 2024, July
Main Camera
Dual - 50 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, (depth)
Features LED flash, panorama, HDR LED flash
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) -
Video 4K@30fps, 1080p@30fps, gyro-EIS 1080p@30fps
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, 256GB 8GB RAM
  UFS 2.1 -
Misc
Colors Ocean Blue, Space Black, Red Agate Green, Gleaming Orange
Models SM-M315F, SM-M315F/DS, SM-M315F/DSN V2352
SAR 0.52 W/kg (head)     0.69 W/kg (body)     -
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 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Speed HSPA, LTE HSPA, LTE
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Exynos 9611 (10 nm) Mediatek Helio G85 (12 nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G72 MP3 Mali-G52 MC2
OS Android 10, upgradable to Android 12, One UI 4.1 Android 14, Funtouch 14
Selfie camera
Features HDR -
Single 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm 8 MP, f/2.1, (wide)
Video 4K@30fps, 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes, with stereo speakers
  - 24-bit/192kHz Hi-Res audio