| Physical features | LG K7 (3G) | Samsung Duos B5722 |
| Model | K7 (3G) | Duos B5722 |
| Other model names | LG K Series K7 HSPA, LG M1 | Samsung B5722 Duos, GT-B5722, GT-B5722C |
| Country or region available | 
(Europe) | feature not registered |
| Brand | LG | Samsung |
| Release date | January, 2016 | December, 2009 |
| Depth | 9 millimeters (0.35 inches) | 14.4 millimeters (0.57 inches) |
| Size (width x height) | 72.39 x 143.51 millimeters (2.85 x 5.65 in) | 54.9 x 104 millimeters (2.16 x 4.09 in) |
| Weight | 158 grams (5.53 ounces) | 105 grams (3.68 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
| System (OS) | LG K7 (3G) | Samsung Duos B5722 |
| Operating system | Android 5.1.1 Lollipop | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| Hardware | LG K7 (3G) | Samsung Duos B5722 |
| Chipset | 32bit - MediaTek MT6580M (28nm) | 32bit |
| CPU processor | 1.3Ghz Quad-Core ARM Cortex-A7 | Single-Core |
| GPU graphical controller | ARM Mali-400 MP2 400Mhz | feature not registered |
| RAM memory | 1GB LPDDR2 | feature not registered |
| Internal storage | 8GB (4GB available) | 30MB |
| External storage | Until 32GB microSD, microSDHC
(dedicated slot) | Until 8GB microSD
(dedicated slot) |
| Display | LG K7 (3G) | Samsung Duos B5722 |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 5" inches | 2.8" inches |
| Screen-to-body ratio | ~66.3% (screen-to-body ratio) | ~42.5% (screen-to-body ratio) |
| Display resolution | 480x854 pixels | 240x320 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Single touch 1-point |
| Pixel density (dot pitch) | 196 PPI | 143 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Display features | feature not registered | feature not registered |
| Mobile networks | LG K7 (3G) | Samsung Duos B5722 |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card
(dedicated slot) |
| SIM card | 1 slot (Single-SIM)
nano-SIM (4FF) | 2 slots (Dual-SIM)
Standard mini-SIM (2FF) |
| Maximum download/upload | 21/5.76 Mbps | 0.236 Mbps |
| Network technology | 2G, 3G | 2G |
| Frequency, bands | Expand band detailsCollapse 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 | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE |
| Secondary 2G network | Not supported | GSM 900/1800 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS |
| Calling | LG K7 (3G) | Samsung Duos B5722 |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, MMS, E-mail |
| Speakerphone | Supported | Supported |
| Video calling | Supported | Not supported |
| Call control | Voice dialing, Voice recorder | Voice recorder |
| Camera | LG K7 (3G) | Samsung Duos B5722 |
| Back camera (main camera) | 5 megapixels | 3.1 megapixels |
| Main camera resolution | 2560x1920 pixels | 2048x1536 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | QVGA (320x240) 15 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | feature not registered |
| 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 | Not supported |
| Touch focus | Supported | feature not registered |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Not supported |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | HDR photo only main camera | feature not registered |
| 2ª camera | LG K7 (3G) | Samsung Duos B5722 |
| Front camera (secondary) | 5 megapixels | Not supported |
| Front camera resolution | 2560x1920 pixels | Not supported |
| Video recording (secondary) | HD (1280x720) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Multimedia | LG K7 (3G) | Samsung Duos B5722 |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
| Connectivity | LG K7 (3G) | Samsung Duos B5722 |
| USB | MicroUSB 2.0 | USB 2.0 proprietary connector |
| TV output | Not supported | Not supported |
| Audio output | 3.5mm jack | proprietary audio output |
| Bluetooth | 4.0 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 b/g/n (2.4Ghz) | Not supported |
| DLNA | Not supported | feature not registered |
| NFC | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | Not supported |
| Infrared port | Not supported | feature not registered |
| Other functions | LG K7 (3G) | Samsung Duos B5722 |
| Active noise cancellation | Not supported | feature not registered |
| Vibrating alert | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML |
| Sensors | Accelerometer
Proximity sensor
Ambient Light sensor
| Not supported |
| Other features | - Colors: Black, White, Gold, Titan
- 2.5D Arc Glass
- Knock Code, Knock On
- Take still shots while recording video
- WiFi direct, hotspot | - Colors: Black, Dark Brown, Elegant Pink
- Samsung TouchWiz Lite v1.0
- DNSe (Digital Natural Sound Engine)
- Java framework |
| Power supply | LG K7 (3G) | Samsung Duos B5722 |
| Battery | Li-Ion: Lithium-Ion (Removable) | Li-Ion: Lithium-Ion (Removable) |
| Battery capacity | 2125 mAh | 1200 mAh |
| Charger, watts | Standard charging | Standard charging |
| Talk time autonomy | 420 minutes | 7 hours | 0.3 day | 270 minutes | 4.5 hours | 0.2 day |
| Standby | 21000 minutes | 350 hours | 14.6 days | 24000 minutes | 400 hours | 16.7 days |
| Radiation rate | LG K7 (3G) | Samsung Duos B5722 |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.77W/kg (head) | 0.69W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.435W/kg (head) | 0.685W/kg (head) |