Xiaomi MI Mix 3 5G vs. LG K51S

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi MI Mix 3 5G and LG K51S. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

Xiaomi MI Mix 3 5G vs. LG K51S Comparison Chart
DESIGN AND DIMENSIONS Xiaomi MI Mix 3 5G LG K51S
Product Type Smartphone Smartphone
Manufacturer Model Number - LM-K510EMW
Form Factor Touch slider Touch
Height 157.89 mm 165.2 mm LG K51S has greater height than Xiaomi MI Mix 3 5G.
Width 74.69 mm 76.7 mm LG K51S has greater width than Xiaomi MI Mix 3 5G.
Depth 8.46 mm 8.26 mm LG K51S is narrower than Xiaomi MI Mix 3 5G.
Weight 225 g 194 g LG K51S is lighter than Xiaomi MI Mix 3 5G.
Body Colour Sapphire blue | Onyx black Pink | Titan
Waterproof (Water-resistant) - -
SAR Value 1.577 W/kg (body), 1.557 W/kg (head) 1.335 W/kg (body), 0.501 W/kg (head)
Connector Type USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
SIM Card Type (Size) - Nano SIM
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Xiaomi MI Mix 3 5G LG K51S
Display Type OLED display LCD display
Display Technology AMOLED IPS
Screen Size (Display Size) 6.39" 6.55" LG K51S has larger screen size than Xiaomi MI Mix 3 5G.
Screen Resolution (Display Resolution) 2340 x 1080 pixels 1600 x 720 pixels Xiaomi MI Mix 3 5G has better screen resolution than LG K51S.
Display Format Full HD+ HD+
Pixel Density 403 ppi 268 ppi Xiaomi MI Mix 3 5G has better pixel density than LG K51S.
Aspect Ratio 19.5:9 20:9
Max Brightness 600 cd/m² 400 cd/m² Xiaomi MI Mix 3 5G has better display brightness than LG K51S.
Contrast Ratio 60000:1 -
HDR Yes - Xiaomi MI Mix 3 5G has HDR.
Display Enhancement Technology Sunlight mode -
Display Features Always-on display, Reading mode, Colour temperature adjustment, night mode Reading mode, FullVision display, night mode, hole in display
Display Protection (Screen Protector) - Tempered glass
PROCESSOR Xiaomi MI Mix 3 5G LG K51S
Processor Type (CPU) Qualcomm Snapdragon 855 MediaTek
Processor Number - MT6765
Clock Speed 2.84 GHz 2.3 GHz Xiaomi MI Mix 3 5G has higher clock speed than LG K51S.
Processor Core Qty - 8-core
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 640 IMG PowerVR GE8320
MEMORY Xiaomi MI Mix 3 5G LG K51S
RAM LPDDR4X SDRAM - 6 GB 3 GB Xiaomi MI Mix 3 5G has more RAM than LG K51S.
Internal Memory Size (Storage Capacity) 128 GB 64 GB Xiaomi MI Mix 3 5G has more internal memory than LG K51S.
User Memory - 50.2 GB
Memory Interface UFS 2.1 -
Supported Flash Memory Cards (Expandable Memory) - microSDHC, microSDXC - up to 2 TB
CAMERA Xiaomi MI Mix 3 5G LG K51S
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 12 Megapixel 32 Megapixel LG K51S has better camera resolution than Xiaomi MI Mix 3 5G.
Sensor Name Sony Exmor RS IMX363 sensor -
Lens Type Wide-angle lens -
Lens Aperture F/1.8 F/1.8 Both phones have the same camera lens aperture.
Field of View (FoV) - 76.3 degree(s)
Pixel Size 1.4 μm -
Optical Image Stabiliser (OIS) 4-axis OIS (Optical Image Stabilisation) - Xiaomi MI Mix 3 5G has optical stabilisation.
Focus Adjustment Automatic Automatic
Minimum Focal Length (Focal Distance) - 24 mm
Digital Zoom - 8x
Self-Timer Delay - Yes
Special Effects HDR HDR
Camera Modes Panorama, Nightscape capture mode, Personalized AI Beautify Burst mode, portrait mode, Flowers, Animals, Food, Person, Sunset, Sunrise, City, Landscape
Face Recognition (Face ID) Face recognition Face detection Both phones have face detection.
White Balance - Automatic
Light Source Flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1920 x 1080 (1080p) at 960 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) AI scene and object detection, Dual Pixel Autofocus technology, AI Dual camera, 4-in-1 Super Pixel, AI scene detection, AI dynamic bokeh, AI studio lighting, AI Super Resolution, low-light enhancement technology, AI special effects Phase Detect Auto-Focus (PDAF), geotagging, Big Pixels technology, Quad Pixel technology
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 5 Megapixel Xiaomi MI Mix 3 5G has better second camera resolution than LG K51S.
Sensor Name (2nd Camera) Samsung S5K3M3+ -
Lens Type (2nd Camera) - Super wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Field of View (2nd Camera) - 115 degree(s)
Pixel Size (2nd Camera) 1 μm -
Minimum Focal Length (2nd Camera) - 16 mm
THIRD CAMERA
Sensor Resolution (3rd Camera) - 2 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Field of View (3rd Camera) - 88.9 degree(s)
Camera Functions (3rd Camera) - Depth camera
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
Lens Aperture (4th Camera) - F/2.4
Field of View (4th Camera) - 88.6 degree(s)
Camera Functions (4th Camera) - Macro camera
Camera Features (4th Camera) - 4cm macro photography
FRONT CAMERA
Number of Front Cameras 2 1
Sensor Resolution (Front) 24 Megapixel 13 Megapixel Xiaomi MI Mix 3 5G has better front camera resolution than LG K51S.
Sensor Name (Front) Sony Exmor RS IMX576 sensor -
Pixel Size (Front) 1.8 μm -
Special Effects (Front) Magic mirror -
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Bokeh Mode, AI Beautify, AI makeup Gesture Shot, Selfie portrait
Face Recognition (Face ID) Face recognition Face detection Both phones have face detection.
Camera Features (Front) AI portrait mode, 4-in-1 Super Pixel technology, Video Beautify, AI scene detection, AI dynamic bokeh, AI studio lighting, AI real-time video background blurring, AI eye light 17 filters
SECOND FRONT CAMERA
Sensor Resolution (2nd Front) 2 Megapixel -
Sensor Name (2nd Front) OC0A10 -
Pixel Size (2nd Front) 1.75 μm -
BATTERY AND CHARGING Xiaomi MI Mix 3 5G LG K51S
Battery Capacity (Battery Size) 3800 mAh 4000 mAh LG K51S has larger battery capacity than Xiaomi MI Mix 3 5G.
Fast Charging Technology Qualcomm Quick Charge 4.0+ - Xiaomi MI Mix 3 5G has fast charging technology.
Standby Time - 100 hours
Talk Time - 480 minutes
Run Time Details - Talk: up to 480 min
Standby: up to 100 hrs
Battery Technology - Lithium Ion
CELLULAR Xiaomi MI Mix 3 5G LG K51S
Technology CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA WCDMA (UMTS) / GSM
Mobile Broadband Generation 5G 4G Xiaomi MI Mix 3 5G has more advanced generation mobile network.
Operating System - Android 9.0 Pie
User Interface - LG UX 9
Intelligent Assistant - Google Assistant
Navigation GPS, GLONASS, BeiDou, Galileo, QZSS GPS
COMMUNICATIONS Xiaomi MI Mix 3 5G LG K51S
Data Transmission GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 8 -
3G UMTS Frequency 2100, 1900, 1700, 850, 900 -
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41 Band 1, Band 3, Band 7, Band 8, Band 20, Band 38
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600
5G NR Band N78 -
5G NR Frequency TDD TD 3500 -
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n
Bluetooth Bluetooth 5.0 Bluetooth 5.0 BLE
Bluetooth Profiles - HFP, HSP, OPP, PAN, SPP, GOEP, A2DP, AVRCP, HID, SAP, GAVDP, PBAP, MAP, GATT, HDP, HOGP, ScPP
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi MI Mix 3 5G LG K51S
Supported Digital Audio Standards WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis
Supported Digital Video Standards MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP MKV, FLV, AVI, WMV, ASF, 3GP, TS, WebM, OGM, MP4
Sound Enhancements - DTS: X 3D Surround Sound
FEATURES Xiaomi MI Mix 3 5G LG K51S
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, digital compass, gyro sensor, vibration sensor, ultrasonic distance sensor Accelerometer, ambient light sensor, proximity sensor, digital compass
Security Devices Face recognition, fingerprint reader Fingerprint reader
Additional Phone Features MIMO technology, MU-MIMO technology DLNA Certified, Dual microphones, KnockON, QuickMemo+ function, Mini View function, Capture+, EasyHome, Clip Tray, Google Lens, AI Cam, Game Tools, Google Assistant Button
OTHERS Xiaomi MI Mix 3 5G LG K51S
Included Accessories Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable Power adapter, SIM card removal tool, USB-C cable
Compliant Standards - MIL-STD 810G
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