LG K51S (K510HM) vs LG G8 ThinQ (G820UM0)
Side by side comparison between LG K51S vs LG G8 ThinQ phones, differences, pros, cons and full specifications. What's the better?
,
6.55"
IPS
IPS
720x1600
32
MP
MP
13mp
3GB
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 (G820UM0)
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 
25 Advantages | 22 Common items in both devices |
| Until 1TB microSD, microSDXC |
| 60Hz |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / PDAF on back camera and autofocus front camera |
| HDR photo on both cameras / HDR photo/video and HDR photo on front camera |
| +15 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 K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Model | K51S (K510HM) | LG G8 ThinQ (G820UM0) |
| Other model names | LG K51s LM-K510HM, LMK510HM (Single-Sim) | Sprint LG G8 ThinQ LMG820UM0, LM-G820UM0 |
| Country or region available |  (Latin America) |  USA |
| Brand | LG | LG |
| Release date | 4/1/2020 | 4/11/2019, Announced: 2/24/2019 |
| Depth | 8.26 millimeters (0.33 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 76.7 x 165.2 millimeters (3.02 x 6.5 in) | 71.882 x 151.892 millimeters (2.83 x 5.98 in) |
| Weight | 194 grams (6.79 ounces) | 167 grams (5.85 ounces) |
| Build, materials | Plastic body, glass front | Aluminum frame, glass front/back |
| Protection against water and others | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | 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 | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Display type | TFT IPS LCD | P-OLED |
| Screen size | 6.55" inches | 6.1" inches |
| Screen-to-body ratio | ~81.7% (screen-to-body ratio) | ~83.7% (screen-to-body ratio) |
| Display resolution | 720x1600 pixels (20:9) | 1440x3120 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 268 PPI | 563 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 5 |
| Refresh rate | 60Hz | 60Hz |
| Display features | 400nits[typ] | HDR10 100% DCI-P3 Always-On Display |
🤖 Operating System | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| System version | Android 9.0 Pie | Android 9.0 Pie |
| Firmware update | feature not registered | Android 12 |
| User Interface | feature not registered | LG UX 8.0 / 9.0 / 10 / 11 |
⚙️ Processor | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Chipset | 64bit: MediaTek Helio P35 (MT6765) (12nm) | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) |
| CPU | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz 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 | PowerVR GE8320 MP2 (680MHz) | Qualcomm Adreno 640 (585MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 331537 (v7), 362730 (v8) Geekbench: 10735 (v4.4), 2700 (v5.1) GFXBench: 20fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| RAM memory | 3GB LPDDR3 | 6GB LPDDR4X |
| Internal storage | 64GB (47GB 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 | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 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 Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66) TD-LTE (38) | LTE Cat19 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71) TD-LTE (40, 41, 46) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, 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 | 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 K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Back camera (main camera) | (quad camera) 32 megapixels 5MP ultrawide f/2.216mm1.12μm115° 2MP macro f/2.422mm1.75μm88.6° 2MP depth f/2.41.75μm | (dual camera) 12 megapixels 16MP ultrawide f/1.91/3.1"16mm1.0µmFF |
| Main camera resolution | 6528x4896 pixels | 4000x3000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.5 (aperture) |
| Focal length | 24mm lens | 27mm lens |
| Sensor size | feature not registered | 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 | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Front camera (secondary) | 13 megapixels | (dual front camera) 8 megapixels 0.3MP TOF f/1.4 |
| Front camera resolution | 4128x3096 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/1.7 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | feature not registered | 1/3.6" inches |
| Pixel size | feature not registered | 1.22µm pixel |
🔉 Sound and multimedia | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Loudspeaker | Supported | Mono sound (not stereo) 32-bit/192kHz DTS:X |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | 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 | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| 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 b/g/n [wifi4] (2.4GHz) 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 | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) 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 | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4000 mAh | 3500 mAh |
| Charger, watts | 10W (5V/2A) Wired 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 | 10.5 hours | 19 hours |
| Standby | 370 hours (15.4 days) | 412 hours (17.2 days) |
➕ Other features | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| 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, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Titanium, Blue, Pink/Red • Silicone case included • Google Assistant (dedicated side button) • DTS:X 3D audio | • Colors: Aurora Black, Platinum Gray |
☢️ Radiation rate | ||
| LG K51S (K510HM) | LG G8 ThinQ (G820UM0) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |