Samsung Galaxy A40 (SM-A405FN/DS) vs LG K42 (K420YM)
Side by side comparison between Samsung Galaxy A40 vs LG K42 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
6.6"
IPS
IPS
720x1600
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A40 (SM-A405FN/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!
15 Advantages 
6 Advantages | 28 Common items in both devices |
| 64GB (49GB available) / 64GB (45GB available) |
| eMMC 5.1 |
| Until 1TB microSD, microSDXC |
| Plastic body, glass front |
| 16 million |
| LED flash |
| Only digital zoom |
| +21 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-A405FN/DS) | LG K42 (K420YM) | |
| Model | Galaxy A40 (SM-A405FN/DS) | K42 (K420YM) |
| Other model names | Galaxy A40 SM-A405FN/Dual-Sim | LG K42 LMK420YM, LM-K420YM Single-SIM |
| Country or region available |   (Europe), (Global, International) |   Australia, New Zealand |
| Brand | Samsung | LG |
| Release date | 4/10/2019 | 9/21/2020 |
| Depth | 7.9 millimeters (0.31 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 69.2 x 144.4 millimeters (2.72 x 5.69 in) | 76.7 x 165 millimeters (3.02 x 6.5 in) |
| Weight | 140 grams (4.9 ounces) | 184 grams (6.44 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 5.9" inches | 6.6" inches |
| Screen-to-body ratio | ~85.5% (screen-to-body ratio) | ~83.1% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 437 PPI | 266 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| System version | Android 9.0 Pie | Android 10 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| Chipset | 64bit: Samsung Exynos 7 Octa 7885 (14nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Octa-core, 2 processors: 2x 1.8GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-G71 MP2 | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| RAM memory | 4GB LPDDR4X | 3GB LPDDR4X |
| Internal storage | 64GB (49GB available) eMMC 5.1 | 64GB (45GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| 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) nano-SIM (4FF) |
| Maximum Download / Upload | 600/150 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 | 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 850/900/1900/2100 |
| Primary 4G network | LTE Cat12/13 (Bands 1, 3, 5, 7, 8, 20) TD-LTE (Bands 38, 40, 41) | LTE Cat4 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 39, 40) VoLTE |
| 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+, TD-LTE, LTE |
| 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-A405FN/DS) | LG K42 (K420YM) | |
| Back camera (main camera) | (dual camera) 16 megapixels 5MP ultrawide f/2.213mmFF | (quad camera) 13 megapixels 5MP ultrawide f/2.2115°1/5.0"1.12µm 2MP macro f/2.41.75μm 2MP depth f/2.41.75μm |
| Main camera resolution | 4608x3456 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 27mm lens |
| Sensor size | feature not registered | 1/3.1" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection 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 on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| 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 | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| USB | USB 3.1 Type-C, 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 | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3100 mAh | 4000 mAh |
| Charger, watts | 15W Wired fast charging | 10W (5V/2A) Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 18 hours | 16 hours |
| Standby | feature not registered | 180 hours (7.5 days) |
➕ Other features | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| 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: Black, White, Blue, Coral • 19.5:9 display ratio FHD+ • One UI | • Colors: Titan, Green, Red • Silicon case included • LG 3D Sound Engine |
☢️ Radiation rate | ||
| Galaxy A40 (SM-A405FN/DS) | LG K42 (K420YM) | |
| 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) | feature not registered |