LG K50S (X540ZMW) vs Samsung Galaxy J7 Duo (SM-J720F)
Side by side comparison between LG K50S vs Samsung Galaxy J7 Duo phones, differences, pros, cons and full specifications. What's the better?
,
6.5"
IPS
IPS
720x1520
13
MP
MP
13mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
5.5"
AMOLED
AMOLED
720x1280
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Removable)
What's the better phone? LG K50S (X540ZMW)
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!
14 Advantages 
11 Advantages | 24 Common items in both devices |
| eMMC 5.1 |
| 8.2 millimeters (0.32 inches) |
| Plastic body, glass front |
| 60Hz |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| +17 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 | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Model | K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) |
| Other model names | LG K50s LM-X540ZMW, LMX540ZMW | Galaxy J7 Duo J720F Single-Sim, Samsung J720 |
| Country or region available |  Taiwan |   South Africa, United Arab Emirates |
| Brand | LG | Samsung |
| Release date | 9/1/2019 | 4/1/2018 |
| Depth | 8.2 millimeters (0.32 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 77.5 x 165.8 millimeters (3.05 x 6.53 in) | 77.2 x 153.5 millimeters (3.04 x 6.04 in) |
| Weight | 194 grams (6.79 ounces) | 174 grams (6.09 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | Not supported |
📲 Display | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.5" inches | 5.5" inches |
| Screen-to-body ratio | ~82.1% (screen-to-body ratio) | ~70.4% (screen-to-body ratio) |
| Display resolution | 720x1520 pixels (19:9) | 720x1280 pixels (16:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 259 PPI | 267 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| System version | Android 9.0 Pie | Android 8.0 Oreo |
| Firmware update | feature not registered | Android 10 |
| User Interface | feature not registered | One UI 2.0 |
⚙️ Processor | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Chipset | 64bit: MediaTek Helio P22 (MT6762) (12nm) | 64bit: Samsung Exynos 7885 (14nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core) |
| GPU graphical controller | PowerVR GE8320 (650MHz) | ARM Mali-G71 MP2 |
| Performance (benchmark) | feature not registered | AnTuTu: 98104 (v7) |
💽 Memory and storage | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| RAM memory | 3GB LPDDR3 | 3GB LPDDR4 |
| Internal storage | 32GB (18GB available) eMMC 5.1 | 32GB (21GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 300/50 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 | 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 Cat6 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 39, 40, 41) | LTE Cat4 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41) |
| 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 |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Back camera (main camera) | (triple camera) 13 megapixels 5MP ultrawide f/2.21.12μm115° 2MP depth f/2.41.75μm85° | (dual camera) 13 megapixels 5MP depth f/1.9 |
| Main camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash on both cameras |
| Focal aperture | f/2.2 (aperture) | f/1.9 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital 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 only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Front camera (secondary) | 13 megapixels | 8 megapixels |
| Front camera resolution | 4128x3096 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.0 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| 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/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Sensors | Accelerometer Ambient light sensor Face unlock Fingerprint sensor (rear-mounted) Proximity sensor | Accelerometer ANT+ Face unlock Fingerprint sensor (front-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4000 mAh | 3000 mAh |
| Charger, watts | 6W (5V/1.2A) Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 18 hours | 20 hours |
| Standby | 504 hours (21 days) | feature not registered |
➕ Other features | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder |
| 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: Aurora Black, Moroccan Blue • DTS:X 3D surround sound • Eco Playback | • Colors: Black, Gold, Rose Gold, White • Samsung Pay |
☢️ Radiation rate | ||
| LG K50S (X540ZMW) | Galaxy J7 Duo (SM-J720F) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.543W/kg (head), 1.397W/kg (body) |