LG K42 (K420YM) vs LG Optimus G (E977)
Side by side comparison between LG K42 vs LG Optimus G phones, differences, pros, cons and full specifications. What's the better?
,
6.6"
IPS
IPS
720x1600
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
4.7"
IPS+
IPS+
768x1280
13.2
MP
MP
1.3mp
2GB
RAM
RAM
Quad-core
2100
mAh
mAh
(Non removable)
What's the better phone? LG K42 (K420YM)
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!
22 Advantages 
5 Advantages | 20 Common items in both devices |
| TFT IPS LCD / TFT Super IPS+ |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Full HD (1920x1080) |
| 4G LTE |
| +13 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 K42 (K420YM) | LG Optimus G (E977) | |
| Model | K42 (K420YM) | Optimus G (E977) |
| Other model names | LG K42 LMK420YM, LM-K420YM Single-SIM | LG Optimus G E977, LG E977 Optimus G |
| Country or region available |   Australia, New Zealand | feature not registered |
| Brand | LG | LG |
| Release date | 9/21/2020 | 9/17/2012 |
| Depth | 8.4 millimeters (0.33 inches) | 8.5 millimeters (0.33 inches) |
| Size (width x height) | 76.7 x 165 millimeters (3.02 x 6.5 in) | 68.9 x 131.9 millimeters (2.71 x 5.19 in) |
| Weight | 184 grams (6.44 ounces) | 145 grams (5.08 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| 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 K42 (K420YM) | LG Optimus G (E977) | |
| Display type | TFT IPS LCD | TFT Super IPS+ |
| Screen size | 6.6" inches | 4.7" inches |
| Screen-to-body ratio | ~83.1% (screen-to-body ratio) | ~69.2% (screen-to-body ratio) |
| Display resolution | 720x1600 pixels (20:9) | 768x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 266 PPI | 318 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 2 |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| System version | Android 10 | Android 4.1.2 Jelly Bean |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| Chipset | 64bit: MediaTek Helio P22 (MT6762) (12nm) | 32bit: Qualcomm Snapdragon S4 Pro APQ8064 |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) | Quad-core, 1 processor: 4x 1.5GHz Krait (Quad-core) |
| GPU graphical controller | PowerVR GE8320 (650MHz) | Qualcomm Adreno 320 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| RAM memory | 3GB LPDDR4X | 2GB LPDDR2 |
| Internal storage | 64GB (45GB available) eMMC 5.1 | 32GB (25GB available) |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 150/50 Mbps | 100/50 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 850/1900/2100 |
| Primary 4G network | LTE Cat4 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 39, 40) VoLTE | LTE 700/2600 |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | 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 K42 (K420YM) | LG Optimus G (E977) | |
| Back camera (main camera) | (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 | 13.2 megapixels |
| Main camera resolution | 4128x3096 pixels | 4192x3144 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/2.4 (aperture) |
| Focal length | 27mm lens | feature not registered |
| Sensor size | 1/3.1" inches | 1/3.2" inches |
| Pixel size | 1.12µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| Front camera (secondary) | 8 megapixels | 1.3 megapixels |
| Front camera resolution | 3264x2448 pixels | 1280x1024 pixels |
| Video recording (secondary) | Full HD (1920x1080) | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, DivX, XviD, WMV, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WMA, WAV, eAAC+, FLAC, AC3 |
🔌 Connectivity | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | Micro-B USB MHL |
| Bluetooth | 5.0 + A2DP/LE | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4000 mAh | 2100 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 16 hours | 15 hours |
| Standby | 180 hours (7.5 days) | 335 hours (14 days) |
➕ Other features | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Titan, Green, Red • Silicon case included • LG 3D Sound Engine | • Colors: Black, White • LG Optimus UI v3.0 • G2 Touch Hybrid Glass screen • WiFi direct • 3G/4G mobile hotspot • Java framework |
☢️ Radiation rate | ||
| LG K42 (K420YM) | LG Optimus G (E977) | |
| 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 |