| ratings |
| Overall NDTV Rating | Read Review | Read Review |
| Design Rating | | |
| Display Rating | | |
| Software Rating | | |
| Performance Rating | | |
| Battery Life Rating | | |
| Camera Rating | | |
| Value for Money Rating | | |
| key specs |
| Display | 6.40-inch | 5.80-inch |
| Processor | Samsung Exynos 9611 | Samsung Exynos 8895 |
| Front Camera | 16-megapixel | 8-megapixel |
| Rear Camera | 48-megapixel + 5-megapixel + 8-megapixel | 12-megapixel |
| RAM | 4GB | 4GB |
| Storage | 64GB | 64GB |
| Battery Capacity | 6000mAh | 3000mAh |
| OS | Android 9 Pie | Android 7.0 |
| Resolution | 1080x2340 pixels | 1440x2960 pixels |
| general |
| Brand | Samsung | Samsung |
| Model | Galaxy M30s | Galaxy S8 |
| Release date | September 18, 2019 | March 1, 2017 |
| Form factor | Touchscreen | Touchscreen |
| Dimensions (mm) | 159.00 x 75.10 x 8.90 | 148.90 x 68.10 x 8.00 |
| Weight (g) | 188.00 | 155.00 |
| Battery capacity (mAh) | 6000 | 3000 |
| Removable battery | No | No |
| Fast charging | Proprietary | Quick Charge 2.0 |
| Wireless charging | No | - |
| Colours | Opal Black, Sapphire Blue, Pearl White | Midnight Black, Orchid Gray, Arctic Silver, Coral Blue, Maple Gold |
| SAR value | 0.47 | - |
| Launched in India | - | Yes |
| display |
| Screen size (inches) | 6.40 | 5.80 |
| Touchscreen | Yes | Yes |
| Resolution | 1080x2340 pixels | 1440x2960 pixels |
| Protection type | - | Gorilla Glass |
| Aspect ratio | - | 18.5:9 |
| Pixels per inch (PPI) | - | 570 |
| hardware |
| Processor | 1.7GHz octa-core (4x1.7GHz + 4x2.3GHz) | octa-core (4x2.35GHz + 4x1.9GHz) |
| Processor make | Samsung Exynos 9611 | Samsung Exynos 8895 |
| RAM | 4GB | 4GB |
| Internal storage | 64GB | 64GB |
| Expandable storage | Yes | Yes |
| Expandable storage type | microSD | microSD |
| Expandable storage up to (GB) | 512 | 256 |
| Dedicated microSD slot | Yes | - |
| camera |
| Rear camera | 48-megapixel (f/2.0) + 5-megapixel (f/2.2) + 8-megapixel (f/2.2) | 12-megapixel (f/1.7, 1.4-micron) |
| Rear autofocus | Yes | Phase detection autofocus |
| Rear flash | Yes | Dual LED |
| Front camera | 16-megapixel | 8-megapixel (f/1.7, 1.22-micron) |
| Front flash | No | - |
| Front autofocus | - | Yes |
| software |
| Operating system | Android 9 Pie | Android 7.0 |
| Skin | One UI | - |
| connectivity |
| Wi-Fi | Yes | Yes |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac |
| GPS | Yes | Yes |
| Bluetooth | Yes | Yes |
| NFC | No | Yes |
| Infrared | No | No |
| USB OTG | Yes | No |
| USB Type-C | Yes | Yes |
| Headphones | 3.5mm | 3.5mm |
| Number of SIMs | 2 | 1 |
| Active 4G on both SIM cards | Yes | - |
| FM | - | No |
| Wi-Fi Direct | - | No |
| Mobile High-Definition Link (MHL) | - | No |
| sim 1 |
| SIM Type | Nano-SIM | - |
| GSM/CDMA | GSM | GSM |
| 3G | Yes | Yes |
| 4G/ LTE | Yes | Yes |
| sim 2 |
| SIM Type | Nano-SIM | - |
| GSM/CDMA | GSM | - |
| 3G | Yes | - |
| 4G/ LTE | Yes | - |
| sensors |
| Fingerprint sensor | Yes | Yes |
| Compass/ Magnetometer | Yes | Yes |
| Proximity sensor | Yes | Yes |
| Accelerometer | Yes | Yes |
| Ambient light sensor | Yes | Yes |
| Gyroscope | - | Yes |
| Barometer | - | Yes |
| Temperature sensor | - | No |