Samsung Galaxy A40 (SM-A405FM/DS) vs LG G4 (LS991)
Side by side comparison between Samsung Galaxy A40 vs LG G4 phones, differences, pros, cons and full specifications. What's the better?
,
5.9"
AMOLED
AMOLED
1080x2340
16
MP
MP
25mp
4GB
RAM
RAM
Octa-core
3100
mAh
mAh
(Non removable)
vs
5.5"
IPS
IPS
1440x2560
16
MP
MP
8mp
3GB
RAM
RAM
Hexa-core
3000
mAh
mAh
(Removable)
What's the better phone? Samsung Galaxy A40 (SM-A405FM/DS)
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!
23 Advantages 
9 Advantages | 24 Common items in both devices |
| Plastic body, glass front |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / LDAF: laser detection autofocus |
| (front) Full HD (1920x1080) |
| 4G LTE-A |
| +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 | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Model | Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) |
| Other model names | Galaxy A40 SM-A405FM/Dual-Sim, SM-A405FZKGSER | LG G4 LS991 (Sprint), LG-LS991, LG P1 |
| Country or region available |   Kazakhstan, Russia |  USA |
| Brand | Samsung | LG |
| Release date | 4/10/2019 | 4/29/2015, Announced: 4/28/2015 |
| Depth | 7.9 millimeters (0.31 inches) | 9.8 millimeters (0.39 inches) |
| Size (width x height) | 69.2 x 144.4 millimeters (2.72 x 5.69 in) | 76.1 x 148.9 millimeters (3 x 5.86 in) |
| Weight | 140 grams (4.9 ounces) | 155 grams (5.43 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 5.9" inches | 5.5" inches |
| Screen-to-body ratio | ~85.5% (screen-to-body ratio) | ~73.6% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels | 1440x2560 pixels (16:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 437 PPI | 534 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| System version | Android 9.0 Pie | Android 5.1 Lollipop |
| Firmware update | feature not registered | Android 7.0 Nougat |
| User Interface | feature not registered | LG UX 4.0 UI |
⚙️ Processor | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Chipset | 64bit: Samsung Exynos 7 Octa 7885 (14nm) | 64bit: Qualcomm Snapdragon 808 (MSM8992) (20nm) |
| CPU | Octa-core, 2 processors: 2x 1.8GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core) | Hexa-core, 2 processors: 2x 1.8GHz ARM Cortex-A57 (Dual-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-G71 MP2 | Qualcomm Adreno 418 (600MHz) |
| Performance (benchmark) | feature not registered | Basemark OS II: 1584 (v2) |
💽 Memory and storage | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| RAM memory | 4GB LPDDR4X | 3GB LPDDR3 |
| Internal storage | 64GB (49GB 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 | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| 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) micro-SIM (3FF) |
| Maximum Download / Upload | 600/150 Mbps | 300/50 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 | 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 850/900/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat12/13 (Bands 1, 3, 5, 7, 8, 20) TD-LTE (Bands 38, 40, 41) | LTE Cat6 (2, 4, 5, 12, 25, 26) |
| 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+, 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 A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Back camera (main camera) | (dual camera) 16 megapixels 5MP ultrawide f/2.213mmFF | 16 megapixels |
| Main camera resolution | 4608x3456 pixels | 5312x2988 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm (lens) | 28mm (lens) |
| Sensor size | feature not registered | 1/2.6" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | LDAF: laser 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 | Not supported |
| HDR | HDR photo on both cameras | HDR photo/video only main camera |
| Camera extras | feature not registered | 4K@30fps 1080p@30fps |
📸 Front camera | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Front camera (secondary) | 25 megapixels | 8 megapixels |
| Front camera resolution | 5760x4320 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/2.0 (aperture) |
| Focal length | 25mm (lens) | feature not registered |
| Sensor size | feature not registered | 1/4" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Loudspeaker | Supported | Mono sound (not stereo) 24-bit/192kHz |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV, MKV | MP4, H.264, H.263, DivX, XviD, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| USB | USB 3.1 Type-C, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Micro-B USB SlimPort |
| 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, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 3100 mAh | 3000 mAh |
| Charger, watts | 15W Wired fast charging | 18W Wired fast charging Quick Charge 2 |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 18 hours | 20 hours |
| Standby | feature not registered | 434 hours (18.1 days) |
➕ Other features | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| 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: Black, White, Blue, Coral • 19.5:9 display ratio FHD+ • One UI | • Colors: Grey, White, Gold, Leather Black, Leather Brown, Leather Red • Knock Code • Quick Remote |
☢️ Radiation rate | ||
| Galaxy A40 (SM-A405FM/DS) | LG G4 (LS991) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.49W/kg (head), 1.34W/kg (body) | 0.62W/kg (head) |