LG K51 (K500QM5) vs Samsung Galaxy A8 (SM-A800S)
Side by side comparison between LG K51 vs Samsung Galaxy A8 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"
AMOLED
AMOLED
1080x1920
16
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3050
mAh
mAh
(Non removable)
What's the better phone? LG K51 (K500QM5)
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!
15 Advantages 
12 Advantages | 27 Common items in both devices |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| EIS: Digital stabilization |
| Full HD (1920x1080) |
| (front) Full HD (1920x1080) |
| +20 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 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Model | K51 (K500QM5) | Galaxy A8 (SM-A800S) |
| Other model names | LG K51 (Xfinity Mobile) LMK500QM5ACSTTN, LM-K500QM5 | Samsung Galaxy A8 A800S (4G LTE) |
| Country or region available |  USA |  South Korea |
| Brand | LG | Samsung |
| Release date | 4/2/2020 | 7/24/2015 |
| Depth | 8.47 millimeters (0.33 inches) | 5.9 millimeters (0.23 inches) |
| Size (width x height) | 77.92 x 166.96 millimeters (3.07 x 6.57 in) | 76.8 x 158 millimeters (3.02 x 6.22 in) |
| Weight | 204 grams (7.14 ounces) | 151 grams (5.29 ounces) |
| Build, materials | Plastic body, glass front | Aluminum body, glass front, plastic back |
| Protection against water and others | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | Not supported |
📲 Display | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.5" inches | 5.7" inches |
| Screen-to-body ratio | ~79.7% (screen-to-body ratio) | ~73.8% (screen-to-body ratio) |
| Display resolution | 720x1560 pixels (19.5:9) | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 264 PPI | 386 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Panda King Glass | Gorilla Glass 4 |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| System version | Android 10 | Android 5.1.1 Lollipop |
| Firmware update | feature not registered | Android 6.0 Marshmallow |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Chipset | 64bit: MediaTek Helio P22 (MT6762) (12nm) | 32bit: Samsung Exynos 5 Octa 5430 (28nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 1.8GHz ARM Cortex-A15 (Quad-core) 4x 1.3GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | PowerVR GE8320 (650MHz) | ARM Mali-T628 MP6 600Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| RAM memory | 3GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 32GB (16GB available) eMMC 5.1 | 32GB (25GB available) eMMC 5.0 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 128GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| 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 | 150/50 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 | Tri-Band 900/1800/1900 |
| Primary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 | UMTS 850/1900/2100 |
| Primary 4G network | LTE Cat6 (2, 3, 4, 5, 7, 12, 13, 20, 66) | LTE Cat4 (Bands 1, 3, 5, 7, 8, 17) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| 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 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Back camera (main camera) | (triple camera) 13 megapixels 5MP ultrawide f/2.21.12μm1/5"115° 2MP depth f/2.41.75μm1/5"85° | 16 megapixels |
| Main camera resolution | 4128x3096 pixels | 4608x3456 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.9 (aperture) |
| Focal length | 26mm (lens) | 31mm (lens) |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | 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 | HDR photo on both cameras | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Front camera (secondary) | 13 megapixels | 5 megapixels |
| Front camera resolution | 4128x3096 pixels | 2592x1944 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | 23mm (lens) |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Digital TV |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, MKV, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.1 + 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 |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor ANT+ Compass Fingerprint sensor (front-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 4000 mAh | 3050 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 21 hours | 18 hours |
| Standby | 576 hours (24 days) | feature not registered |
➕ Other features | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| 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: Black, White, Gold • Samsung TouchWiz UX • T-DMB TV (Korea) |
☢️ Radiation rate | ||
| LG K51 (K500QM5) | Galaxy A8 (SM-A800S) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.191W/kg (head), 1.46W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.256W/kg (head), 0.576W/kg (body) |