| Physical features | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Model | Galaxy S2 Duos TV (GT-S7273T) | K51S (K510HM) |
| Other model names | Galaxy Ace 3 Duos GT-S7273T, Galaxy S II Duos TV | LG K51s LM-K510HM, LMK510HM (Single-Sim) |
| Country or region available | 
Brazil | 
(Latin America) |
| Brand | Samsung | LG |
| Release date | August, 2013 | April, 2020 |
| Depth | 9.8 millimeters (0.39 inches) | 8.26 millimeters (0.33 inches) |
| Size (width x height) | 62.7 x 121.2 millimeters (2.47 x 4.77 in) | 76.7 x 165.2 millimeters (3.02 x 6.5 in) |
| Weight | 119 grams (4.17 ounces) | 194 grams (6.79 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | External retractable antenna | Internal antenna |
| Build, materials | Plastic 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. |
| System (OS) | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Operating system | Android 4.2.2 Jelly Bean | Android 9.0 Pie |
| Firmware update | feature not registered | feature not registered |
| Hardware | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Chipset | 32bit - Broadcom BCM21664 (40nm) | 64bit - MediaTek MT6765 Helio P35 (12nm) |
| CPU processor | 1Ghz Dual-Core ARM Cortex-A9 | Octa-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A53
1.8Ghz Quad-Core ARM Cortex-A53 |
| GPU graphical controller | Broadcom VideoCore IV | PowerVR GE8320 680Mhz |
| RAM memory | 1GB LPDDR2 | 3GB LPDDR3 |
| Internal storage | 4GB (1.78GB available) | 64GB (47GB available)
eMMC 5.1 |
| External storage | Until 32GB microSD, microSDHC
(dedicated slot) | Until 1TB microSD, microSDXC
(dedicated slot) |
| Display | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 4" inches | 6.55" inches |
| Screen-to-body ratio | ~59.9% (screen-to-body ratio) | ~81.7% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 268 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Display features | feature not registered | 60Hz, 400 nits |
| Mobile networks | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card
(dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM)
micro-SIM (3FF) | 1 slot (Single-SIM)
nano-SIM (4FF) |
| Maximum download/upload | 14.4/5.76 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G |
| 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 850/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66)
TD-LTE (38) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| 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 |
| Calling | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Messaging | SMS (Swype), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Speakerphone | Supported | Supported |
| Video calling | Supported | Supported |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Camera | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Back camera (main camera) | 5 megapixels | (quad camera)
32 megapixels
5MP ultrawidef/2.216mm1.12μm115º
2MP macrof/2.422mm1.75μm88.6º
2MP depthf/2.41.75μm |
| Main camera resolution | 2592x1944 pixels | 6528x4896 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | f/1.8 (aperture) |
| Focal length | feature not registered | 24mm lens |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | Autofocus | PDAF: phase detection 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 | Not supported | HDR photo on both cameras |
| 2ª camera | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Front camera (secondary) | 0.3 megapixels | 13 megapixels |
| Front camera resolution | 640x480 pixels | 4128x3096 pixels |
| Video recording (secondary) | VGA (640x480) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (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 |
| Multimedia | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Radio | FM (RDS) | FM |
| TV | Digital TV | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
| Connectivity | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| TV output | Not supported | Not supported |
| Audio output | 3.5mm jack | 3.5mm jack |
| Bluetooth | 4.0 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n (2.4Ghz) | 802.11 b/g/n (2.4Ghz) |
| DLNA | Not supported | Not supported |
| NFC | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| Infrared port | Not supported | Not supported |
| Other functions | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Active noise cancellation | Not supported | Supported |
| Vibrating alert | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Sensors | Accelerometer
Proximity sensor
Compass
Ambient Light sensor
| Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Fingerprint sensor (rear-mounted)
|
| Other features | - Colors: Black
- Samsung TouchWiz 4.0 UI
- WiFi direct
- WiFi hotspot
- ISDB-T Digital TV
- Java framework | - Colors: Titanium, Blue, Pink/Red
- Silicone case included
- Google Assistant (dedicated side button)
- DTS:X 3D audio
- WiFi direct, hotspot |
| Power supply | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| Battery | Li-Ion: Lithium-Ion (Removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 1500 mAh | 4000 mAh |
| Charger, watts | Standard charging | 10W (5V/2A) Standard charging |
| Talk time autonomy | 480 minutes | 8 hours | 0.3 day | 630 minutes | 10.5 hours | 0.4 day |
| Standby | 22200 minutes | 370 hours | 15.4 days | 22200 minutes | 370 hours | 15.4 days |
| Radiation rate | Samsung Galaxy S2 Duos TV (GT-S7273T) | LG K51S (K510HM) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.471W/kg (head) | 0.71W/kg (body) | feature not registered |