Xiaomi Black Shark 4S (128GB/8GB) vs LG K42 (K420YMW)
Side by side comparison between Xiaomi Black Shark 4S vs LG K42 phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
AMOLED
AMOLED
1080x2400
48
MP
MP
20mp
8GB
RAM
RAM
Octa-core
4500
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? Xiaomi Black Shark 4S (128GB/8GB)
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!
24 Advantages 
5 Advantages | 23 Common items in both devices |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| HDR photo on both cameras |
| f/1.8 (aperture) |
| +16 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 | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Model | Black Shark 4S (128GB/8GB) | K42 (K420YMW) |
| Other model names | 黑鲨4S, Black Shark 4S (128GB+12GB RAM) | LG K42 LMK420YMW, LM-K420YMW Dual-SIM |
| Country or region available |  (Global, International) |     (Global, International), United Arab Emirates, India, Israel, Taiwan |
| Brand | Xiaomi | LG |
| Release date | 10/16/2021, Announced: 10/13/2021 | 9/21/2020 |
| Depth | 9.9 millimeters (0.39 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 76.21 x 163.69 millimeters (3 x 6.44 in) | 76.7 x 165 millimeters (3.02 x 6.5 in) |
| Weight | 210 grams (7.35 ounces) | 184 grams (6.44 ounces) |
| Build, materials | Aluminum body, glass front, plastic back | 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 | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 6.67" inches | 6.6" inches |
| Screen-to-body ratio | ~86.1% (screen-to-body ratio) | ~83.1% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 266 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 144Hz | 60Hz |
| Display features | 1300nits[peak] HDR10+ Always-On Display Touch Sampling Rate: 720Hz | Not supported |
🤖 Operating System | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| System version | Android 11 | Android 10 |
| Firmware update | Android 12 | feature not registered |
| User Interface | Joy UI 12 / 13 | feature not registered |
⚙️ Processor | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Chipset | 64bit: Qualcomm Snapdragon 870 (SM8250-AC) (7nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Octa-core, 3 processors: 1x 3.2GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 650 (670MHz) | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | AnTuTu: 710538 (v9) Geekbench: 3451 (v5.1) | feature not registered |
💽 Memory and storage | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| RAM memory | 8GB LPDDR5 | 3GB LPDDR4X |
| Internal storage | 128GB (103GB available) UFS 3.1 | 64GB (45GB available) eMMC 5.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 | CDMA 800, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat4 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 39, 40) VoLTE |
| Primary 5G network | SA/NSA (1, 3, 8, 28, 41, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 800/850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
📷 Camera | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Back camera (main camera) | (triple camera) 48 megapixels 8MP ultrawide f/2.2120°1/4"1.12µm 5MP macro f/2.4AF | (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 | 8000x6000 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 27mm lens |
| Sensor size | 1/2" inches | 1/3.1" inches |
| Pixel size | 0.8µm pixel | 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 | Supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | 4K@30/60fps 1080p@30/60fps 1080p@240/960fps (slow motion) | feature not registered |
📸 Front camera | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Front camera (secondary) | 20 megapixels | 8 megapixels |
| Front camera resolution | 5184x3840 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 | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Loudspeaker | Stereo sound with dual speakers 24-bit/192kHz | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| USB | USB 2.0 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 | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.2 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (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, QZSS | A-GPS, GeoTagging |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4500 mAh | 4000 mAh |
| Charger, watts | 120W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 | 10W (5V/2A) Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | 16 hours |
| Standby | feature not registered | 180 hours (7.5 days) |
➕ Other features | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| 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 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White, Gundam • Liquid Cooling System • Physical pop-up gaming triggers | • Colors: Titan, Green, Red • Silicon case included • LG 3D Sound Engine |
☢️ Radiation rate | ||
| Xiaomi Black Shark 4S (128GB/8GB) | LG K42 (K420YMW) | |
| 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 |