Detailed comparison and review of Samsung Galaxy S9 and LG K51S. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Samsung Galaxy S9 | LG K51S |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G960W | LM-K510EMW | |
| Form Factor | Touch | Touch | |
| Height | 147.7 mm | 165.2 mm | LG K51S has greater height than Samsung Galaxy S9. |
| Width | 68.7 mm | 76.7 mm | LG K51S has greater width than Samsung Galaxy S9. |
| Depth | 8.5 mm | 8.26 mm | LG K51S is narrower than Samsung Galaxy S9. |
| Weight | 163 g | 194 g | Samsung Galaxy S9 is lighter than Samsung Galaxy S9. |
| Body Colour | Titanium grey | Lilac purple | Midnight black | Coral blue | Pink | Titan | |
| Body Material | Metal frame | - | |
| Protection | Dustproof, splashproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy S9 is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.08 W/kg (body), 0.63 W/kg (head) | 1.335 W/kg (body), 0.501 W/kg (head) | |
| Integrated Components | Heart rate sensor | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy S9 | LG K51S |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Quad HD+ Super AMOLED | IPS | |
| Screen Size (Display Size) | 5.8" | 6.55" | LG K51S has larger screen size than Samsung Galaxy S9. |
| Screen Resolution (Display Resolution) | 2960 x 1440 pixels | 1600 x 720 pixels | Samsung Galaxy S9 has better screen resolution than LG K51S. |
| Display Format | QHD+ | HD+ | |
| Pixel Density | 570 ppi | 268 ppi | Samsung Galaxy S9 has better pixel density than LG K51S. |
| Aspect Ratio | 18.5:9 | 20:9 | |
| Max Brightness | - | 400 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| HDR | Yes | - | Samsung Galaxy S9 has HDR. |
| Display Features | Always-on display, Edge Screen, Infinity Display | Reading mode, FullVision display, night mode, hole in display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Tempered glass |
| PROCESSOR | Samsung Galaxy S9 | LG K51S |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | MediaTek | |
|---|---|---|---|
| Processor Number | MSM8998 | MT6765 | |
| Clock Speed | 2.8 GHz | 2.3 GHz | Samsung Galaxy S9 has higher clock speed than LG K51S. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 630 | IMG PowerVR GE8320 |
| MEMORY | Samsung Galaxy S9 | LG K51S |
|---|
| RAM | LPDDR4 SDRAM - 4 GB | 3 GB | Samsung Galaxy S9 has more RAM than LG K51S. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| User Memory | 48.8 GB | 50.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 400 GB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | Samsung Galaxy S9 | LG K51S |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 32 Megapixel | LG K51S has better camera resolution than Samsung Galaxy S9. |
| Sensor Size | 1/2.55" | - | |
| Lens Aperture | F/1.5 & f/2.4 | F/1.8 | Samsung Galaxy S9 has better lens aperture than Samsung Galaxy S9. |
| Field of View (FoV) | - | 76.3 degree(s) | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy S9 has optical stabilisation. |
| Focus Adjustment | Automatic, manual | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 24 mm | |
| Digital Zoom | 8x | 8x | Both phones have the same digital zoom. |
| Self-Timer Delay | Yes | Yes | |
| Special Effects | Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers | HDR | |
| Camera Modes | Panorama, Pro mode, Timer mode, HYPERLAPSE, Auto mode, low-light shots, Food mode, Super Slow-mo, AR Emoji | Burst mode, portrait mode, Flowers, Animals, Food, Person, Sunset, Sunrise, City, Landscape | |
| Face Recognition (Face ID) | Face detection | Face detection | Both phones have face detection. |
| White Balance | Custom, automatic | Automatic | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 2560 x 1440 (QHD) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Selective Focus, Quick Launch, Playback zoom, Tracking Focus, Motion photo, Exposure, Shutter speed, geotagging, Continuous Auto Focus (CAF), RAW image capture, VDIS (Video Digital Image Stabilisation), High CRI LED flash, Tracking AF, Stamps, location tags, Hyperlapse video support 1080p, Live focus with bokeh filters, Super Speed Dual Pixel | Phase Detect Auto-Focus (PDAF), geotagging, Big Pixels technology, Quad Pixel technology |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Super wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 115 degree(s) | |
| Minimum Focal Length (2nd Camera) | - | 16 mm |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Field of View (3rd Camera) | - | 88.9 degree(s) | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Field of View (4th Camera) | - | 88.6 degree(s) | |
| Camera Functions (4th Camera) | - | Macro camera | |
| Camera Features (4th Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | LG K51S has better front camera resolution than Samsung Galaxy S9. |
| Sensor Size (Front) | 1/3.6" | - | |
| Sensor Type (Front) | CMOS | - | |
| Lens Aperture (Front) | F/1.7 | - | |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | HDR, Grid Line | - | |
| Camera Modes (Front) | Timer mode, wide selfie mode, selfie mode, AR Emoji, selfie focus | Gesture Shot, Selfie portrait | |
| Face Recognition (Face ID) | - | Face detection | LG K51S has face detection. |
| Camera Features (Front) | Quick launch, Motion photo, Stamps, location tags, VDIS (Video Digital Image Stabilization) | 17 filters |
| BATTERY AND CHARGING | Samsung Galaxy S9 | LG K51S |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 4000 mAh | LG K51S has larger battery capacity than Samsung Galaxy S9. |
|---|---|---|---|
| Wireless Charging | Yes | - | Samsung Galaxy S9 can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA | - | |
| Standby Time | 326 hours | 100 hours | Samsung Galaxy S9 has longer standby time than LG K51S. |
| Talk Time | 1860 minutes | 480 minutes | Samsung Galaxy S9 has longer battery life when making calls than LG K51S. |
| Run Time Details | Talk (3G): up to 1860 min Active online usage (Wi-Fi): up to 14 hrs Active online usage (3G): up to 12 hrs Active online usage (LTE): up to 14 hrs Playback (audio (Always On Display Off)): up to 90 hrs Playback (audio (Always On Display On)): up to 51 hrs Playback (video): up to 17 hrs Standby (AOD off): up to 326 hrs Standby (AOD on): up to 82 hrs |
Talk: up to 480 min Standby: up to 100 hrs |
|
| Battery Technology | - | Lithium Ion |
| CELLULAR | Samsung Galaxy S9 | LG K51S |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.0 Oreo | Android 9.0 Pie | |
| User Interface | - | LG UX 9 | |
| Intelligent Assistant | Bixby | Google Assistant | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS |
| COMMUNICATIONS | Samsung Galaxy S9 | LG K51S |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, VoWiFi | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | - | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | - | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 46, Band 66 | Band 1, Band 3, Band 7, Band 8, Band 20, Band 38 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 5150, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/ANT | IEEE 802.11a/b/g/n | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 BLE | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | HFP, HSP, OPP, PAN, SPP, GOEP, A2DP, AVRCP, HID, SAP, GAVDP, PBAP, MAP, GATT, HDP, HOGP, ScPP | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy S9 | LG K51S |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, AAC-LC, XMF, AAC +, OGG, eAAC+, MIDI, APE (Monkey's Audio), M4A, apt-X, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, OPUS, DFF, MID, AMR-WB, AMR-NB, Vorbis, DSD64, DSD128 | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, FLV, AVC, AVI, MPEG-4, WMV, ASF, 3GP, H.264, H.263, M4V, WebM, HEVC, MP43, 3G2, WMV8, VP8, VP9, H.265, WMV7 | MKV, FLV, AVI, WMV, ASF, 3GP, TS, WebM, OGM, MP4 | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | DTS: X 3D Surround Sound |
| FEATURES | Samsung Galaxy S9 | LG K51S |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, heart rate, pressure sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Face recognition, fingerprint reader, eye scan | Fingerprint reader | |
| Additional Phone Features | Multitasking, Face Unlock, Wi-Fi Miracast, Multi Window, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Samsung DeX support, Bixby Vision, Intelligent Scan | DLNA Certified, Dual microphones, KnockON, QuickMemo+ function, Mini View function, Capture+, EasyHome, Clip Tray, Google Lens, AI Cam, Game Tools, Google Assistant Button |
| OTHERS | Samsung Galaxy S9 | LG K51S |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB Connector (USB-C), micro-USB connector, USB-C cable, headset (tuned by AKG) | Power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | IP68 | MIL-STD 810G | |
| Max Depth of Water Resistance | 1.5 m | - |
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