Samsung Galaxy A9 2018 (SM-A920F/DS 64GB) vs LG K51S (K510ZMW)
Side by side comparison between Samsung Galaxy A9 (2018) vs LG K51S phones, differences, pros, cons and full specifications. What's the better?
,
6.3"
AMOLED
AMOLED
1080x2220
24
MP
MP
24mp
6GB
RAM
RAM
Octa-core
3800
mAh
mAh
(Non removable)
vs
6.55"
IPS
IPS
720x1600
32
MP
MP
13mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A9 2018 (SM-A920F/DS 64GB)
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!
19 Advantages 
5 Advantages | 27 Common items in both devices |
| 64GB (50GB available) / 64GB (47GB available) |
| eMMC 5.1 |
| Until 1TB microSD, microSDXC |
| 60Hz |
| 16 million |
| LED flash |
| PDAF: phase detection autofocus |
| +20 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 A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Model | Galaxy A9 2018 (SM-A920F/DS 64GB) | K51S (K510ZMW) |
| Other model names | Galaxy A9 SM-A920F/Dual-Sim, Samsung A920 | LG K51s LM-K510ZMW, LMK510ZMW (Dual-Sim) |
| Country or region available |  (Latin America) |     South Africa, Australia, Israel, Taiwan |
| Brand | Samsung | LG |
| Release date | 10/11/2018 | 4/1/2020 |
| Depth | 7.8 millimeters (0.31 inches) | 8.26 millimeters (0.33 inches) |
| Size (width x height) | 77 x 162.5 millimeters (3.03 x 6.4 in) | 76.7 x 165.2 millimeters (3.02 x 6.5 in) |
| Weight | 183 grams (6.41 ounces) | 194 grams (6.79 ounces) |
| Build, materials | Aluminum body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 6.3" inches | 6.55" inches |
| Screen-to-body ratio | ~80.5% (screen-to-body ratio) | ~81.7% (screen-to-body ratio) |
| Display resolution | 1080x2220 pixels (18.5:9) | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 392 PPI | 268 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | 400nits[typ] |
🤖 Operating System | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| System version | Android 8.0 Oreo | Android 9.0 Pie |
| Firmware update | Android 9.0 Pie | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 SDM660 (14nm) | 64bit: MediaTek Helio P35 (MT6765) (12nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 512 650Mhz | PowerVR GE8320 MP2 (680MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| RAM memory | 6GB LPDDR4X | 3GB LPDDR3 |
| Internal storage | 64GB (50GB available) eMMC 5.1 | 64GB (47GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 450/50 Mbps | 300/50 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat9 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40) | LTE Cat6 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 39, 40) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Back camera (main camera) | (quad camera) 24 megapixels 10MP telephoto f/2.452mm1/3.9"1.0µmAF2x-optical-zoom 8MP ultrawide f/2.412mm1/4.0"1.12µm 5MP depth f/2.2 | (quad camera) 32 megapixels 5MP ultrawide f/2.216mm1.12μm115° 2MP macro f/2.422mm1.75μm88.6° 2MP depth f/2.41.75μm |
| Main camera resolution | 5656x4240 pixels | 6528x4896 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | 27mm lens | 24mm lens |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.9µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital 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 | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Front camera (secondary) | 24 megapixels | 13 megapixels |
| Front camera resolution | 5656x4240 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | 27mm lens | feature not registered |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.9µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | 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 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3800 mAh | 4000 mAh |
| Charger, watts | 18W Wired fast charging | 10W (5V/2A) Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | 10.5 hours |
| Standby | feature not registered | 370 hours (15.4 days) |
➕ Other features | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| Call control | Voice dialing, Voice recorder | 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: Caviar Black, Lemonade Blue, Bubblegum Pink • Samsung Pay • Dolby Atmos | • Colors: Titanium, Blue, Pink/Red • Silicone case included • Google Assistant (dedicated side button) • DTS:X 3D audio |
☢️ Radiation rate | ||
| Galaxy A9 2018 (SM-A920F/DS 64GB) | LG K51S (K510ZMW) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.27W/kg (head), 0.84W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |