Xiaomi Black Shark 4 (128GB/12GB) vs LG X400 (K121K)
Side by side comparison between Xiaomi Black Shark 4 vs LG X400 phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
AMOLED
AMOLED
1080x2400
48
MP
MP
20mp
12GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
5.3"
IPS
IPS
720x1280
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
2800
mAh
mAh
(Removable)
What's the better phone? Xiaomi Black Shark 4 (128GB/12GB)
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!
18 Common items in both devices |
16 million |
LED flash |
Only digital zoom |
PDAF: phase detection autofocus / Autofocus |
EIS: Digital stabilization |
(front) Full HD (1920x1080) |
Capacitive |
+11 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 4 (128GB/12GB) | LG X400 (K121K) | |
Model | Black Shark 4 (128GB/12GB) | X400 (K121K) |
Other model names | 黑鲨4 SHARK PRS-A0, KSR-A0, PRS-H0 | KT LG X400, LGM-K121K, LGMK121K (Korea Telecom) |
Country or region available | (Global, International) | South Korea |
Brand | Xiaomi | LG |
Release date | 3/30/2021, Announced: 3/23/2021 | 2/1/2017 |
Depth | 9.9 millimeters (0.39 inches) | 8 millimeters (0.31 inches) |
Size (width x height) | 76.35 x 163.83 millimeters (3.01 x 6.45 in) | 75.29 x 148.7 millimeters (2.96 x 5.85 in) |
Weight | 210 grams (7.35 ounces) | 142 grams (4.97 ounces) |
Build, materials | Aluminum body, glass front, plastic back | Plastic body, glass front |
Protection against water and others | Not supported | Not supported |
📲 Display | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Display type | Super AMOLED | TFT IPS LCD |
Screen size | 6.67" inches | 5.3" inches |
Screen-to-body ratio | ~85.9% (screen-to-body ratio) | ~69.2% (screen-to-body ratio) |
Display resolution | 1080x2400 pixels (20:9) | 720x1280 pixels |
Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
Pixel density (dot pitch) | 395 PPI | 277 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Not supported | Not supported |
Refresh rate | 144Hz | feature not registered |
Display features | 1300nits[peak] HDR10+ Always-On Display Touch Sampling Rate: 720Hz | feature not registered |
🤖 Operating System | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
System version | Android 11 | Android 7.0 Nougat |
Firmware update | Android 12 | Android 8.0 Oreo |
User Interface | Joy UI 12 / 13 | feature not registered |
⚙️ Processor | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Chipset | 64bit: Qualcomm Snapdragon 870 (SM8250-AC) (7nm) | 64bit: MediaTek MT6750 (28nm) |
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 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) |
GPU graphical controller | Qualcomm Adreno 650 (670MHz) | ARM Mali-T860 MP2 520Mhz |
Performance (benchmark) | AnTuTu: 617456 (v8) Geekbench: 3448 (v5.1) GFXBench: 54fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
RAM memory | 12GB LPDDR5 | 2GB LPDDR3 |
Internal storage | 128GB (103GB available) UFS 3.1 | 32GB (22GB available) |
External storage | Not supported | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
Maximum Download / Upload | 2000/1024 Mbps | 300/50 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 | Tri-Band 900/1800/1900 |
Primary 2G network | CDMA 800, GSM 850/900/1800/1900 | GSM 900/1800/1900 |
Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1900/2100 | UMTS 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 Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE |
Primary 5G network | SA/NSA (1, 3, 8, 28, 41, 77, 78, 79) | 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+, LTE, LTE-A |
Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
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 | Not supported |
📷 Camera | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Back camera (main camera) | (triple camera) 48 megapixels 8MP ultrawide f/2.2120°1/4"1.12µm 5MP macro f/2.4AF | 13 megapixels |
Main camera resolution | 8000x6000 pixels | 4160x3120 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/2.2 (aperture) |
Focal length | 26mm lens | feature not registered |
Sensor size | 1/2" inches | 1/3" inches |
Pixel size | 0.8µm pixel | 1.12µm pixel |
Autofocus | PDAF: phase detection autofocus | 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 only main camera |
Camera extras | 4K@30/60fps 1080p@30/60fps 1080p@240/960fps (slow motion) | feature not registered |
📸 Front camera | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Front camera (secondary) | 20 megapixels | 5 megapixels |
Front camera resolution | 5184x3840 pixels | 2560x1920 pixels |
Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
Front flash | Not supported | Not supported |
Focal aperture | f/2.0 (aperture) | f/2.4 (aperture) |
Focal length | feature not registered | feature not registered |
Sensor size | feature not registered | 1/5" inches |
Pixel size | 0.8µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
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 (RDS) |
TV | Not supported | Digital TV |
Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
USB | USB 2.0 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 | USB Type-C (reversible) | Not supported |
Bluetooth | 5.2 + A2DP/LE | 4.2 + A2DP |
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, GLONASS |
NFC | Supported | Supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
Battery capacity | 4500 mAh | 2800 mAh |
Charger, watts | 120W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 | Wired charging |
Inductive / wireless charging | Not supported | feature not registered |
Talk time autonomy | feature not registered | 9 hours |
Standby | feature not registered | 390 hours (16.3 days) |
➕ Other features | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
Call control | Voice dialing, Voice recorder, Voice commands | 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, Pale Grey, Blue, Silver • Liquid Cooling System • Physical pop-up gaming triggers | • Colors: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea) |
☢️ Radiation rate | ||
Xiaomi Black Shark 4 (128GB/12GB) | LG X400 (K121K) | |
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 |