LG K31 (K300QM) vs Xiaomi Mi Mix 3 (256GB/8GB)
Side by side comparison between LG K31 vs Xiaomi Mi Mix 3 phones, differences, pros, cons and full specifications. What's the better?
,
5.7"
IPS
IPS
720x1520
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
vs
6.39"
AMOLED
AMOLED
1080x2340
12
MP
MP
24mp
8GB
RAM
RAM
Octa-core
3200
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Mi Mix 3 (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!
4 Advantages 
31 Advantages | 22 Common items in both devices |
| 60Hz |
| 16 million |
| PDAF: phase detection autofocus |
| HDR photo on both cameras |
| f/1.8 (aperture) |
| (front) Full HD (1920x1080) |
| Android 10 |
| +15 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 K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Model | K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) |
| Other model names | LG K31 (Unlocked), LMK300QMAUSASV, LM-K300Q | 小米MIX 3, Xiaomi Mix 3 M1810E5A |
| Country or region available |  USA |   (Global, International), China |
| Brand | LG | Xiaomi |
| Release date | 8/21/2020 | 11/1/2018, Announced: 10/1/2018 |
| Depth | 8.6 millimeters (0.34 inches) | 8.5 millimeters (0.33 inches) |
| Size (width x height) | 71.12 x 147.83 millimeters (2.8 x 5.82 in) | 74.69 x 157.89 millimeters (2.94 x 6.22 in) |
| Weight | 146 grams (5.11 ounces) | 218 grams (7.63 ounces) |
| Build, materials | Plastic body, glass front | Aluminum body, glass front, ceramic back |
| 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 K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 5.7" inches | 6.39" inches |
| Screen-to-body ratio | ~77.1% (screen-to-body ratio) | ~85% (screen-to-body ratio) |
| Display resolution | 720x1520 pixels (19:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 295 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Panda King Glass | Gorilla Glass 3 |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | 600nits[typ] HDR8 |
🤖 Operating System | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| System version | Android 10 | Android 9.0 Pie |
| Firmware update | feature not registered | Android 10 |
| User Interface | feature not registered | MIUI 10 / 12 |
⚙️ Processor | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Chipset | 64bit: MediaTek Helio P22 (MT6762) (12nm) | 64bit: Qualcomm Snapdragon 845 (SDM845) (10nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core) |
| GPU graphical controller | PowerVR GE8320 (650MHz) | Qualcomm Adreno 630 (710MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 292353 (v7), 352130 (v8) Geekbench: 9065 (v4.4), 2170 (v5.1) GFXBench: 30fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| RAM memory | 2GB LPDDR3 | 8GB LPDDR4X |
| Internal storage | 32GB (17GB available) eMMC 5.1 | 256GB (240GB available) UFS 2.1 |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 600/50 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 | CDMA 800/1900, GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 | Global version: UMTS 800/850/900/1700/1800/1900/2100 China version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 (2, 4, 5, 12, 13, 25, 26, 66, 71) TD-LTE (41) | LTE Cat11 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66) TD-LTE (34, 38, 39, 40, 41) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | 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 |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Global version: UMTS 800/850/900/1700/1800/1900/2100 China version: UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat11 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66) TD-LTE (34, 38, 39, 40, 41) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41) |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Back camera (main camera) | (dual camera) 13 megapixels 5MP ultrawide f/2.2120°1/5.0"1.12µm | (dual camera) 12 megapixels 12MP telephoto 1/3.4"1.0µm |
| Main camera resolution | 4128x3096 pixels | 4000x3000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | LED flash on both cameras |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/3.1" inches | 1/2.55" inches |
| Pixel size | 1.12µm pixel | 1.4µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS (4-axis): Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | 4K@30/60fps 1080p@30/60/960fps |
📸 Front camera | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Front camera (secondary) | 5 megapixels | (dual front camera) 24 megapixels 2MP depth |
| Front camera resolution | 2560x1920 pixels | 5656x4224 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | 24mm (lens) | 26mm (lens) |
| Sensor size | 1/5" inches | 1/2.8" inches |
| Pixel size | 1.12µm pixel | 0.9µm pixel |
🔉 Sound and multimedia | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | Not supported |
| 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 | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C jack with 3.5mm jack adapter |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Sensors | Accelerometer Fingerprint sensor (rear-mounted) | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3000 mAh | 3200 mAh |
| Charger, watts | Wired charging | 18W Wired fast charging Quick Charge 4 |
| Inductive / wireless charging | Not supported | 10W Qi wireless charging |
| Talk time autonomy | 11 hours | feature not registered |
| Standby | 528 hours (22 days) | feature not registered |
➕ Other features | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| 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: Silver • LG UX 9.1 | • Colors: Onyx Black, Jade Green, Sapphire Blue • Mechanical pop-up front camera |
☢️ Radiation rate | ||
| LG K31 (K300QM) | Xiaomi Mi Mix 3 (256GB/8GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.61W/kg (head), 1.13W/kg (body) | 1.45W/kg (head), 1.57W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |