Product
Samsung Galaxy M30s
Samsung Galaxy M30s
Samsung Galaxy M55s
Samsung Galaxy M55s
Battery
Charging 15W wired 45W wired
Type Li-Po 6000 mAh, non-removable 5000 mAh
Body
Build Glass front, plastic back, plastic frame -
Dimensions 159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in) 163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 188 g (6.63 oz) 180 g (6.35 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.2, A2DP, LE
NFC Yes (market/region dependent) Yes
Positioning GPS, GLONASS, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio FM radio, RDS, recording No
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/ac/6, dual-band, Wi-Fi Direct
Display
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) 1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size 6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio) 6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio)
Type Super AMOLED, 420 nits (peak) Super AMOLED+, 120Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2019, September 18 2024, September 24
Status Available. Released 2019, October 30 Available. Released 2024, September 26
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
Triple 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) 50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro)
Video 4K@30fps, 1080p@30fps, gyro-EIS 4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Memory
Card slot microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
Internal 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM 128GB 8GB RAM, 256GB 8GB RAM
  UFS 2.1 -
Misc
Colors Opal Black, Sapphire Blue, Pearl White Thunder Black, Coral Green
Models SM-M307F, SM-M307FN, SM-M307F/DS, SM-M307FN/DS, SM-M3070 SM-M558B, SM-M558B/DS
SAR 0.47 W/kg (head)     0.93 W/kg (head)    
SAR EU 0.49 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 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 7, 8, 20, 38, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 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
Our Tests
Audio quality Noise -93.7dB / Crosstalk -93.2dB -
Battery (old) Endurance rating 130h -
Camera Photo / Video -
Display 642 nits max brightness (measured) -
Performance AnTuTu: 152075 (v7), 180321 (v8) GeekBench: 5566 (v4.4), 1288 (v5.1) GFXBench: 8.7fps (ES 3.1 onscreen) -
Platform
Chipset Exynos 9611 (10 nm) Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
GPU Mali-G72 MP3 Adreno 644
OS Android 9.0 (Pie), upgradable to Android 11, One UI 3.0 Android 14, up to 4 major Android upgrades, One UI 6.1
Selfie camera
Features HDR -
Single 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 50 MP, f/2.4, (wide)
Video 1080p@30fps 4K@30fps, 1080p@30/60fps
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes, with stereo speakers