LG K51 (K500UMT3) vs LG G6 (H871)
Side by side comparison between LG K51 vs LG G6 phones, differences, pros, cons and full specifications. What's the better?
,
6.5"
IPS
IPS
720x1560
13
MP
MP
13mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
5.7"
IPS
IPS
1440x2880
13
MP
MP
5mp
4GB
RAM
RAM
Quad-core
3300
mAh
mAh
(Non removable)
What's the better phone? LG G6 (H871)
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 
20 Advantages | 26 Common items in both devices |
| Until 1TB microSD, microSDXC |
| TFT IPS LCD |
| 60Hz |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| HDR photo on both cameras / HDR photo/video and HDR photo on front camera |
| +19 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 K51 (K500UMT3) | LG G6 (H871) | |
| Model | K51 (K500UMT3) | LG G6 (H871) |
| Other model names | LG K51 (T-Mobile) LMK500UMT3ATMOTN, LM-K500UMT3 | AT&T LG G6 32GB, LG-H871, LGH871 |
| Country or region available |  USA | USA |
| Brand | LG | LG |
| Release date | 5/1/2020 | 3/10/2017, Announced: 2/26/2017 |
| Depth | 8.47 millimeters (0.33 inches) | 7.9 millimeters (0.31 inches) |
| Size (width x height) | 77.92 x 166.96 millimeters (3.07 x 6.57 in) | 71.9 x 148.9 millimeters (2.83 x 5.86 in) |
| Weight | 204 grams (7.14 ounces) | 163 grams (5.71 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 K51 (K500UMT3) | LG G6 (H871) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 6.5" inches | 5.7" inches |
| Screen-to-body ratio | ~79.7% (screen-to-body ratio) | ~78.3% (screen-to-body ratio) |
| Display resolution | 720x1560 pixels (19.5:9) | 1440x2880 pixels (18:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 264 PPI | 565 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Panda King Glass | Gorilla Glass 3 |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Dolby Vision/HDR10 Always-On Display |
🤖 Operating System | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| System version | Android 10 | Android 7.0 Nougat |
| Firmware update | feature not registered | Android 9.0 Pie |
| User Interface | feature not registered | LG UX UI 6.0 / 8.0 |
⚙️ Processor | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| Chipset | 64bit: MediaTek Helio P22 (MT6762) (12nm) | 64bit: Qualcomm Snapdragon 821 (MSM8996AC) (14nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) | Quad-core, 2 processors: 2x 2.35GHz Kryo (Dual-core) 2x 1.6GHz Kryo (Dual-core) |
| GPU graphical controller | PowerVR GE8320 (650MHz) | Qualcomm Adreno 530 (653MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 158785 (v7) Geekbench: 4175 (v4.4) GFXBench: 8.5fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| RAM memory | 3GB LPDDR3 | 4GB LPDDR4 |
| Internal storage | 32GB (18GB available) eMMC 5.1 | 32GB (21GB available) UFS 2.0 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| 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 | 600/150 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | UMTS 850/1700/1900/2100 |
| Primary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 66, 71) TD-LTE (38, 41) | LTE Cat12 (2, 4, 5, 12, 29, 30) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, 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 K51 (K500UMT3) | LG G6 (H871) | |
| Back camera (main camera) | (triple camera) 13 megapixels 5MP ultrawide f/2.21.12μm1/5"115° 2MP depth f/2.41.75μm1/5"85° | (dual camera) 13 megapixels 13MP ultrawide f/2.41/4"12mm125°FF |
| Main camera resolution | 4128x3096 pixels | 4160x3120 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 30mm lens |
| Sensor size | 1/3" inches | 1/3" inches |
| Pixel size | 1.12µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS (3-axis): 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@60fps 720p@120fps |
📸 Front camera | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| Front camera (secondary) | 13 megapixels | 5 megapixels |
| Front camera resolution | 4128x3096 pixels | 2560x1920 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 18mm lens |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| Loudspeaker | Supported | Stereo sound 32-bit/192kHz |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | 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, DivX, XviD |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+, FLAC |
🔌 Connectivity | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| 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 SlimPort® |
| Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
| 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 | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4000 mAh | 3300 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | 18W Wired fast charging Quick Charge 3 |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 21 hours | 23.5 hours |
| Standby | 576 hours (24 days) | 408 hours (17 days) |
➕ Other features | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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: Titan gray • Google Assistant • DTS:X 3D sound surround • HAC M3/T3 | • Colors: Astro black, Mystic white, Ice platinum • Fast battery charging: 50% in 30min • Knock Code, KnockOn |
☢️ Radiation rate | ||
| LG K51 (K500UMT3) | LG G6 (H871) | |
| 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 |