Samsung Galaxy S9 Plus (SM-G9650 128GB) vs LG K31 (K300QM)
Side by side comparison between Samsung Galaxy S9 Plus vs LG K31 phones, differences, pros, cons and full specifications. What's the better?
,
6.2"
AMOLED
AMOLED
1440x2960
12.2
MP
MP
8mp
6GB
RAM
RAM
Octa-core
3500
mAh
mAh
(Non removable)
vs
5.7"
IPS
IPS
720x1520
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S9 Plus (SM-G9650 128GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
17 Common items in both devices |
Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC |
60Hz |
16 million |
LED flash |
PDAF on back camera and autofocus front camera / PDAF: phase detection autofocus |
HDR photo/video on both cameras / HDR photo on both cameras |
4G LTE-A / 4G LTE |
+10 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Model | Galaxy S9 Plus (SM-G9650 128GB) | K31 (K300QM) |
Other model names | Galaxy S9+ SM-G9650/DS (Snapdragon), SM-G9650/1DL | LG K31 (Unlocked), LMK300QMAUSASV, LM-K300Q |
Country or region available | Brazil, China | USA |
Brand | Samsung | LG |
Release date | 3/9/2018, Announced: 2/25/2018 | 8/21/2020 |
Depth | 8.5 millimeters (0.33 inches) | 8.6 millimeters (0.34 inches) |
Size (width x height) | 73.8 x 158.1 millimeters (2.91 x 6.22 in) | 71.12 x 147.83 millimeters (2.8 x 5.82 in) |
Weight | 189 grams (6.62 ounces) | 146 grams (5.11 ounces) |
Build, materials | Aluminum frame, glass front/back Back: Gorilla Glass 5 | Plastic body, glass front |
Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Display type | Super AMOLED | TFT IPS LCD |
Screen size | 6.2" inches | 5.7" inches |
Screen-to-body ratio | ~83.6% (screen-to-body ratio) | ~77.1% (screen-to-body ratio) |
Display resolution | 1440x2960 pixels (18.5:9) | 720x1520 pixels (19:9) |
Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
Pixel density (dot pitch) | 531 PPI | 295 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 5 | Panda King Glass |
Refresh rate | 60Hz | 60Hz |
Display features | HDR10 Always-On Display | Not supported |
🤖 Operating System | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
System version | Android 8.0 Oreo | Android 10 |
Firmware update | Android 11 | feature not registered |
User Interface | One UI 2.5 / 3.1 | feature not registered |
⚙️ Processor | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Chipset | 64bit: Qualcomm Snapdragon 845 (SDM845) (10nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
CPU | Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
GPU graphical controller | Qualcomm Adreno 630 (710MHz) | PowerVR GE8320 (650MHz) |
Performance (benchmark) | AnTuTu: 265163 (v7), 344891 (v8) Geekbench: 8393 (4.2) | feature not registered |
💽 Memory and storage | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
RAM memory | 6GB LPDDR4X | 2GB LPDDR3 |
Internal storage | 128GB (111GB available) UFS 2.1 | 32GB (17GB available) eMMC 5.1 |
External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
Maximum Download / Upload | 1200/150 Mbps | 150/50 Mbps |
Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
Frequency, bands | Expand band details Collapse details | |
GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | CDMA 800, GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
Primary 4G network | LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat4 (2, 4, 5, 12, 13, 25, 26, 66, 71) TD-LTE (41) |
Primary 5G network | Not supported | Not supported |
Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
Secondary 4G network | LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41) VoLTE | Not supported |
Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
📷 Camera | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Back camera (main camera) | (dual camera) 12.2 megapixels 12MP telephoto f/2.41/3.4"52mm1.0µmAFOIS2x-optical-zoom | (dual camera) 13 megapixels 5MP ultrawide f/2.2120°1/5.0"1.12µm |
Main camera resolution | 4032x3024 pixels | 4128x3096 pixels |
Video recording (primary) | 4K UHD (3840x2160) 60 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | LED flash |
Focal aperture | f/1.5 (aperture) | f/1.8 (aperture) |
Focal length | 26mm lens | 27mm lens |
Sensor size | 1/2.55" inches | 1/3.1" inches |
Pixel size | 1.4µm pixel | 1.12µm pixel |
Autofocus | PDAF on back camera and autofocus front camera | PDAF: phase detection autofocus |
Touch focus | Supported | Supported |
Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
Zoom | Digital and optical zoom | Only digital zoom |
Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
BSI sensor | Supported | Not supported |
HDR | HDR photo/video on both cameras | HDR photo on both cameras |
Camera extras | 1080p@240fps 720p@960fps | feature not registered |
📸 Front camera | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Front camera (secondary) | 8 megapixels | 5 megapixels |
Front camera resolution | 3264x2448 pixels | 2560x1920 pixels |
Video recording (secondary) | 2K UHD (2560x1440) | Full HD (1920x1080) |
Front flash | Not supported | Not supported |
Focal aperture | f/1.7 (aperture) | f/2.2 (aperture) |
Focal length | 25mm lens | 24mm lens |
Sensor size | 1/3.6" inches | 1/5" inches |
Pixel size | 1.22µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Supported |
Active noise cancellation | 2 microphones or more | 2 microphones or more |
Radio | FM | Not supported |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, DivX, XviD | MP4, H.265, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
USB | USB 3.1 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
Audio output | 3.5mm jack | 3.5mm jack |
TV output | USB Type-C (reversible) | Not supported |
Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
DLNA | Supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
NFC | Supported | Not supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Sensors | Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Heart rate Iris scanner Proximity sensor SpO2 | Accelerometer Fingerprint sensor (rear-mounted) |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
Battery capacity | 3500 mAh | 3000 mAh |
Charger, watts | 15W (9V/1.67A) Wired fast charging Quick Charge 2 | Wired charging |
Inductive / wireless charging | Qi wireless charging (Qi/PMA) | Not supported |
Talk time autonomy | feature not registered | 11 hours |
Standby | feature not registered | 528 hours (22 days) |
➕ Other features | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
Hands-free calling | Supported | Supported |
Video calling | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
Antenna | Internal antenna | Internal antenna |
Qwerty physical keyboard | Not supported | Not supported |
Miscellaneous | • Colors: Black, Silver, Blue, Gold, Orchid Gray • Samsung DeX • Samsung Gear VR • Samsung Pay | • Colors: Silver • LG UX 9.1 |
☢️ Radiation rate | ||
Galaxy S9 Plus (SM-G9650 128GB) | LG K31 (K300QM) | |
SAR 1.6W/kg (USA, Mexico, etc.) | 0.61W/kg (head), 0.77W/kg (body) | 0.61W/kg (head), 1.13W/kg (body) |
SAR 2W/kg (Europe, UK, etc.) | 0.28W/kg (head), 1.08W/kg (body) | feature not registered |