Xiaomi 12X (256GB/8GB) vs LG K40S (X430BMW)
Side by side comparison between Xiaomi 12X vs LG K40S phones, differences, pros, cons and full specifications. What's the better?
,
6.28"
AMOLED
AMOLED
1080x2400
50
MP
MP
32mp
8GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
6.1"
IPS
IPS
720x1520
13
MP
MP
13mp
3GB
RAM
RAM
Octa-core
3500
mAh
mAh
(Non removable)
What's the better phone? Xiaomi 12X (256GB/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!
32 Advantages 
4 Advantages | 16 Common items in both devices |
| Only digital zoom |
| PDAF: phase detection autofocus |
| HDR photo/video on both cameras / HDR photo on both cameras |
| (front) Full HD (1920x1080) |
| Capacitive |
| Multitouch |
| Accelerometer |
| +9 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 12X (256GB/8GB) | LG K40S (X430BMW) | |
| Model | 12X (256GB/8GB) | K40S (X430BMW) |
| Other model names | Xiaomi 12X 2112123AG (Global), 2112123AC (China) | LG K40s LM-X430BMW, LMX430BMW (3GB RAM) |
| Country or region available |  (Global, International) |  Brazil |
| Brand | Xiaomi | LG |
| Release date | 12/31/2021, Announced: 12/28/2021 | 9/1/2019 |
| Depth | 8.2 millimeters (0.32 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 69.9 x 152.7 millimeters (2.75 x 6.01 in) | 73.9 x 156.3 millimeters (2.91 x 6.15 in) |
| Weight | 176 grams (6.16 ounces) | 186 grams (6.51 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 12X (256GB/8GB) | LG K40S (X430BMW) | |
| Display type | AMOLED | TFT IPS LCD |
| Screen size | 6.28" inches | 6.1" inches |
| Screen-to-body ratio | ~89.2% (screen-to-body ratio) | ~80.4% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 720x1520 pixels (19:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 419 PPI | 276 PPI |
| Colors | 1 billion | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Not supported |
| Refresh rate | 120Hz | 60Hz |
| Display features | 1100nits[peak] Dolby Vision/HDR10+ DCI-P3 Touch rate: 480Hz | Not supported |
🤖 Operating System | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| System version | Android 11 | Android 9.0 Pie |
| Firmware update | Android 12 | feature not registered |
| User Interface | MIUI 13 | feature not registered |
⚙️ Processor | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| 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: 598003 (v8), 690298 (v9) Geekbench: 3168 (v5.1) GFXBench: 47fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| RAM memory | 8GB LPDDR5 | 3GB LPDDR3 |
| Internal storage | 256GB (222GB available) UFS 3.1 | 32GB (18GB available) eMMC 5.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| 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 | 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 | 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 UMTS 800/850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) | LTE Cat6 (Bands 1, 2, 3, 5, 7, 8, 28) |
| Primary 5G network | Global version: SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) China version: SA/NSA (1, 3, 5, 8, 28, 38, 40, 41, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, 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 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 800/850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
📷 Camera | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| Back camera (main camera) | (triple camera) 50 megapixels 13MP ultrawide f/2.412mm123°1/3.06"1.12µm 5MP telephoto macro f/2.450mmAF | (dual camera) 13 megapixels 5MP ultrawide f/2.21.12μm117° |
| Main camera resolution | 8160x6120 pixels | 4128x3096 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.9 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/1.56" inches | feature not registered |
| Pixel size | 1µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical 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/video on both cameras | HDR photo on both cameras |
| Camera extras | 4K@60fps 1080p@960fps Sony IMX766 | feature not registered |
📸 Front camera | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| Front camera (secondary) | 32 megapixels | 13 megapixels |
| Front camera resolution | 6528x4896 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.5 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 0.7µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| Loudspeaker | Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos Tuned by Harman Kardon | 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.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| 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, NavIC | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Not supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Face unlock Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4500 mAh | 3500 mAh |
| Charger, watts | 67W Wired fast charging Quick Charge 4 USB Power Delivery 3.0 | 6W (5V/1.2A) Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 16 hours |
| Standby | feature not registered | 432 hours (18 days) |
➕ Other features | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| 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: Gray, Blue, Purple • LiquidCool | • Colors: Aurora Black, Moroccan Blue • DTS:X 3D sound surround • Eco Playback |
☢️ Radiation rate | ||
| Xiaomi 12X (256GB/8GB) | LG K40S (X430BMW) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.59W/kg (head), 1W/kg (body) | feature not registered |