LG G4 (LS991) vs Samsung Galaxy A51 5G (SM-A516N)
Side by side comparison between LG G4 vs Samsung Galaxy A51 5G phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1440x2560
16
MP
MP
8mp
3GB
RAM
RAM
Hexa-core
3000
mAh
mAh
(Removable)
vs
6.5"
AMOLED
AMOLED
1080x2400
48
MP
MP
32mp
6GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A51 5G (SM-A516N)
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!
10 Advantages 
23 Advantages | 24 Common items in both devices |
| 60Hz |
| 16 million |
| LED flash |
| Only digital zoom |
| LDAF: laser detection autofocus / PDAF: phase detection autofocus |
| 4K UHD (3840x2160) |
| Capacitive |
| +17 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 G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Model | LG G4 (LS991) | Galaxy A51 5G (SM-A516N) |
| Other model names | LG G4 LS991 (Sprint), LG-LS991, LG P1 | 갤럭시 A51 5G SM-A516NZWMKOO |
| Country or region available |  USA |  South Korea |
| Brand | LG | Samsung |
| Release date | 4/29/2015, Announced: 4/28/2015 | 4/29/2020, Announced: 4/8/2020 |
| Depth | 9.8 millimeters (0.39 inches) | 8.7 millimeters (0.34 inches) |
| Size (width x height) | 76.1 x 148.9 millimeters (3 x 5.86 in) | 73.6 x 158.9 millimeters (2.9 x 6.26 in) |
| Weight | 155 grams (5.43 ounces) | 187 grams (6.55 ounces) |
| Build, materials | Plastic body, glass front | Aluminum body, glass front, plastic back |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 5.5" inches | 6.5" inches |
| Screen-to-body ratio | ~73.6% (screen-to-body ratio) | ~87.2% (screen-to-body ratio) |
| Display resolution | 1440x2560 pixels (16:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 534 PPI | 405 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 3 |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Always-On Display |
🤖 Operating System | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| System version | Android 5.1 Lollipop | Android 10 |
| Firmware update | Android 7.0 Nougat | Android 13 |
| User Interface | LG UX 4.0 UI | One UI 2.5 / 3.1 / 4.1 / 5.0 |
⚙️ Processor | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Chipset | 64bit: Qualcomm Snapdragon 808 (MSM8992) (20nm) | 64bit: Samsung Exynos 980 (8nm) |
| CPU | Hexa-core, 2 processors: 2x 1.8GHz ARM Cortex-A57 (Dual-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A77 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 418 (600MHz) | ARM Mali-G76 MP5 (728MHz) |
| Performance (benchmark) | Basemark OS II: 1584 (v2) | AnTuTu: 316007 (v8) Geekbench: 1867(v5.1) GFXBench: 17fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| RAM memory | 3GB LPDDR3 | 6GB LPDDR4X |
| Internal storage | 32GB (25GB available) eMMC 5.0 | 128GB (105GB available) UFS 2.1 |
| External storage | Until 128GB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 2000/200 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat6 (2, 4, 5, 12, 25, 26) | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 (78) |
| 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+, TD-LTE, LTE, LTE-A, SA/NSA |
| 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 G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Back camera (main camera) | 16 megapixels | (quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm |
| Main camera resolution | 5312x2988 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 28mm (lens) | 26mm (lens) |
| Sensor size | 1/2.6" inches | 1/2" inches |
| Pixel size | 1.12µm pixel | 0.8µm pixel |
| Autofocus | LDAF: laser detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (3-axis): Optical 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/video only main camera | HDR photo on both cameras |
| Camera extras | 4K@30fps 1080p@30fps | feature not registered |
📸 Front camera | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Front camera (secondary) | 8 megapixels | 32 megapixels |
| Front camera resolution | 3264x2448 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | 1/4" inches | 1/2.8" inches |
| Pixel size | 1.12µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Loudspeaker | Mono sound (not stereo) 24-bit/192kHz | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, DivX, XviD, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro-B USB SlimPort | Not supported |
| Bluetooth | 4.1 + A2DP | 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 | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor ANT+ Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3000 mAh | 4500 mAh |
| Charger, watts | 18W Wired fast charging Quick Charge 2 | 15W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 20 hours | feature not registered |
| Standby | 434 hours (18.1 days) | feature not registered |
➕ Other features | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| 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: Grey, White, Gold, Leather Black, Leather Brown, Leather Red • Knock Code • Quick Remote | • Colors: Prism Cube Black, Prism Cube White, Prism Cube Pink |
☢️ Radiation rate | ||
| LG G4 (LS991) | Galaxy A51 5G (SM-A516N) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.497W/kg (head), 1.22W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.62W/kg (head) | feature not registered |