LG Optimus 2X (P990) vs Samsung Galaxy J7 Duo (SM-J720M)
Side by side comparison between LG Optimus 2X vs Samsung Galaxy J7 Duo phones, differences, pros, cons and full specifications. What's the better?
,
4"
IPS
IPS
480x800
8
MP
MP
1.3mp
512MB
RAM
RAM
Dual-core
1500
mAh
mAh
(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? Samsung Galaxy J7 Duo (SM-J720M)
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!
6 Advantages 
24 Advantages | 16 Common items in both devices |
| 16 million |
| Only digital zoom |
| Autofocus |
| Full HD (1920x1080) |
| Capacitive |
| Multitouch |
| Accelerometer |
| +9 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 Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Change model | ||
| Model | Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) |
| Other model names | LG Optimus 2X Dual, LG P990H, LG Star | Galaxy J7 Duo J720M Single-Sim, Samsung J720 |
| Country or region available |  (Global, International) |  (Latin America) |
| Brand | LG | Samsung |
| Release date | 1/24/2011 | 4/1/2018 |
| Depth | 10.9 millimeters (0.43 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 63.2 x 123.9 millimeters (2.49 x 4.88 in) | 77.2 x 153.5 millimeters (3.04 x 6.04 in) |
| Weight | 139 grams (4.87 ounces) | 174 grams (6.09 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 4" inches | 5.5" inches |
| Screen-to-body ratio | ~58.2% (screen-to-body ratio) | ~70.4% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 720x1280 pixels (16:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 267 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| System version | Android 2.2.1 Froyo | Android 8.0 Oreo |
| Firmware update | Android 4.0.4 Ice Cream Sandwich ICS | Android 10 |
| User Interface | feature not registered | One UI 2.0 |
⚙️ Processor | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Chipset | 32bit: NVIDIA Tegra 2 250 AP20H | 64bit: Samsung Exynos 7885 (14nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core) |
| GPU graphical controller | ULP NVIDIA GeForce | ARM Mali-G71 MP2 |
| Performance (benchmark) | feature not registered | AnTuTu: 98104 (v7) |
💽 Memory and storage | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| RAM memory | 512MB LPDDR2 | 3GB LPDDR4 |
| Internal storage | 8GB (6GB available) | 32GB (21GB available) eMMC 5.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 7.2/5.76 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G | 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 850/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat4 (1, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66) TD-LTE (38, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Back camera (main camera) | 8 megapixels | (dual camera) 13 megapixels 5MP depth f/1.9 |
| Main camera resolution | 3264x2448 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 24 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash on both cameras |
| Focal aperture | feature not registered | 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 |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | 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 | Not supported | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Front camera (secondary) | 1.3 megapixels | 8 megapixels |
| Front camera resolution | 1280x1024 pixels | 3264x2448 pixels |
| Video recording (secondary) | VGA (640x480) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | feature not registered | 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 Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | Not supported | Not supported |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, DivX, XviD, H.263, H.264, WMV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro HDMI Type D | Not supported |
| Bluetooth | 2.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer ANT+ Face unlock 2D Fingerprint sensor (front-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1500 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 7.9 hours | 20 hours |
| Standby | 400 hours (16.7 days) | feature not registered |
➕ Other features | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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, Flash player | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • NVIDIA Tegra Zone • WiFi hotspot • Java framework | • Colors: Black, Gold, Rose Gold, White • Samsung Pay |
☢️ Radiation rate | ||
| LG Optimus 2X (P990) | Galaxy J7 Duo (SM-J720M) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.97W/kg (head), 0.55W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |