Samsung Galaxy A51 (SM-A515F/DS) vs LG G8 ThinQ (G820QM8)
Side by side comparison between Samsung Galaxy A51 vs LG G8 ThinQ phones, differences, pros, cons and full specifications. What's the better?
,
6.5"
AMOLED
AMOLED
1080x2400
48
MP
MP
32mp
4GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
6.1"
POLED
POLED
1440x3120
12
MP
MP
8mp
6GB
RAM
RAM
Octa-core
3500
mAh
mAh
(Non removable)
What's the better phone? LG G8 ThinQ (G820QM8)
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!
12 Advantages 
19 Advantages | 25 Common items in both devices |
| 128GB (107GB available) / 128GB (104GB available) |
| Until 1TB microSD, microSDXC |
| 60Hz |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / PDAF on back camera and autofocus front camera |
| +18 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 A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Model | Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) |
| Other model names | Samsung Galaxy A51 SM-A515F/DS | Amazon LG G8 ThinQ (Alexa Hands-Free), LMG820QM8, LM-G820QM8 |
| Country or region available |  (Latin America) |  USA |
| Brand | Samsung | LG |
| Release date | 12/16/2019, Announced: 12/12/2019 | 4/11/2019, Announced: 2/24/2019 |
| Depth | 7.9 millimeters (0.31 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 73.6 x 158.5 millimeters (2.9 x 6.24 in) | 71.882 x 151.892 millimeters (2.83 x 5.98 in) |
| Weight | 172 grams (6.02 ounces) | 167 grams (5.85 ounces) |
| Build, materials | Plastic body, glass front | Aluminum frame, glass front/back |
| Protection against water and others | Not supported | IP68 certified: dust/waterproof over 1.5 meters and 30min. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Display type | Super AMOLED | P-OLED |
| Screen size | 6.5" inches | 6.1" inches |
| Screen-to-body ratio | ~87.4% (screen-to-body ratio) | ~83.7% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1440x3120 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 405 PPI | 563 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 5 |
| Refresh rate | 60Hz | 60Hz |
| Display features | Always-On Display | HDR10 100% DCI-P3 Always-On Display |
🤖 Operating System | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| System version | Android 10 | Android 9.0 Pie |
| Firmware update | Android 13 | Android 12 |
| User Interface | One UI 2.5 / 3.1 / 4.1 / 5.0 | LG UX 8.0 / 9.0 / 10 / 11 |
⚙️ Processor | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Chipset | 64bit: Samsung Exynos 9611 (10nm) | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) |
| CPU | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) | Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core) |
| GPU graphical controller | ARM Mali-G72 MP3 (850MHz) | Qualcomm Adreno 640 (585MHz) |
| Performance (benchmark) | AnTuTu: 113051 (v7), 175363 (v8) Geekbench: 5401 (v4.4), 1294 (v5.1) GFXBench: 5.6fps (ES 3.1 onscreen) | AnTuTu: 331537 (v7), 362730 (v8) Geekbench: 10735 (v4.4), 2700 (v5.1) GFXBench: 20fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| RAM memory | 4GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 128GB (107GB available) eMMC 5.1 | 128GB (104GB available) UFS 2.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| 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) nano-SIM (4FF) |
| Maximum Download / Upload | 600/150 Mbps | 1600/150 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 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) VoLTE | LTE Cat19 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, 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 |
📷 Camera | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Back camera (main camera) | (quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm | (dual camera) 12 megapixels 16MP ultrawide f/1.91/3.1"16mm1.0µmFF |
| Main camera resolution | 8000x6000 pixels | 4000x3000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | f/1.5 (aperture) |
| Focal length | 26mm lens | 27mm lens |
| Sensor size | 1/2" inches | 1/2.6" inches |
| Pixel size | 0.8µm pixel | 1.4µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF on back camera and autofocus front camera |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video and HDR photo on front camera |
| Camera extras | feature not registered | 1080p@30/60fps 720p@240fps |
📸 Front camera | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Front camera (secondary) | 32 megapixels | (dual front camera) 8 megapixels 0.3MP TOF f/1.4 |
| Front camera resolution | 6528x4896 pixels | 3264x2448 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/1.7 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/2.8" inches | 1/3.6" inches |
| Pixel size | 0.8µm pixel | 1.22µm pixel |
🔉 Sound and multimedia | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Loudspeaker | Supported | Mono sound (not stereo) 32-bit/192kHz DTS:X |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | Not supported |
| 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 A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 3.1 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | USB Type-C (reversible) |
| 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 | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gesture Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4000 mAh | 3500 mAh |
| Charger, watts | 15W Wired fast charging | 21W Wired fast charging Quick Charge 3 USB Power Delivery 2.0 |
| Inductive / wireless charging | Not supported | 9W Qi wireless charging |
| Talk time autonomy | feature not registered | 22 hours |
| Standby | feature not registered | 412 hours (17.2 days) |
➕ Other features | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| 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: Prism, Crush Black, White, Blue, Pink | • Colors: Aurora Black |
☢️ Radiation rate | ||
| Galaxy A51 (SM-A515F/DS) | LG G8 ThinQ (G820QM8) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.369W/kg (head), 1.59W/kg (body) | feature not registered |