Side by side comparison and review of Xiaomi Redmi Note 4x and LG K51S. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
DESIGN AND DIMENSIONS | Xiaomi Redmi Note 4x | LG K51S |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | - | LM-K510EMW | |
Form Factor | Touch | Touch | |
Height | 151 mm | 165.2 mm | LG K51S has greater height than Xiaomi Redmi Note 4x. |
Width | 76 mm | 76.7 mm | LG K51S has greater width than Xiaomi Redmi Note 4x. |
Depth | 8.45 mm | 8.26 mm | LG K51S is narrower than Xiaomi Redmi Note 4x. |
Weight | 165 g | 194 g | Xiaomi Redmi Note 4x is lighter than Xiaomi Redmi Note 4x. |
Body Colour | Platinum silver grey | Pink | Titan | |
Body Material | Metal | - | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 0.674 W/kg (body), 0.724 W/kg (head) | 1.335 W/kg (body), 0.501 W/kg (head) | |
Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
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SIM Card Type (Size) | Micro SIM, nano SIM | Nano SIM | |
SIM Card Qty | Dual-SIM | Dual-SIM | |
SIM Card Configuration Details | Micro SIM + nano SIM/microSD | - |
DISPLAY | Xiaomi Redmi Note 4x | LG K51S |
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Display Type | - | LCD display | |
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Display Technology | - | IPS | |
Screen Size (Display Size) | 5.5" | 6.55" | LG K51S has larger screen size than Xiaomi Redmi Note 4x. |
Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | Xiaomi Redmi Note 4x has better screen resolution than LG K51S. |
Display Format | Full HD | HD+ | |
Pixel Density | 403 ppi | 268 ppi | Xiaomi Redmi Note 4x has better pixel density than LG K51S. |
Aspect Ratio | - | 20:9 | |
Max Brightness | 450 cd/m² | 400 cd/m² | Xiaomi Redmi Note 4x has better display brightness than LG K51S. |
Contrast Ratio | 1000:1 | - | |
Display Features | 2.5D Glass, Eye protection mode, Colour temperature adjustment | Reading mode, FullVision display, night mode, hole in display | |
Display Protection (Screen Protector) | - | Tempered glass |
PROCESSOR | Xiaomi Redmi Note 4x | LG K51S |
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Processor Type (CPU) | Qualcomm Snapdragon 625 | MediaTek | |
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Processor Number | - | MT6765 | |
Clock Speed | 2 GHz | 2.3 GHz | LG K51S has higher clock speed than Xiaomi Redmi Note 4x. |
Processor Core Qty | - | 8-core | |
64-bit Architecture | - | Yes | LG K51S has 64-bit architecture. |
Graphics System (GPU) | Qualcomm ADRENO 506 | IMG PowerVR GE8320 |
MEMORY | Xiaomi Redmi Note 4x | LG K51S |
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RAM | 3 GB | 3 GB | Both phones have the same RAM size. |
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Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | LG K51S has more internal memory than Xiaomi Redmi Note 4x. |
User Memory | - | 50.2 GB | |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 2 TB |
CAMERA | Xiaomi Redmi Note 4x | LG K51S |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 4 | |
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Sensor Resolution | 13 Megapixel | 32 Megapixel | LG K51S has better camera resolution than Xiaomi Redmi Note 4x. |
Lens Aperture | F/2.0 | F/1.8 | LG K51S has better lens aperture than Xiaomi Redmi Note 4x. |
Lens Construction | 5-element | - | |
Field of View (FoV) | - | 76.3 degree(s) | |
Focus Adjustment | Automatic | Automatic | |
Minimum Focal Length (Focal Distance) | - | 24 mm | |
Digital Zoom | - | 8x | |
Self-Timer Delay | - | Yes | |
Special Effects | HDR | HDR | |
Camera Modes | Burst mode, Panorama, low-light shots | 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 | Dual LED flash | LED flash | |
Video Resolutions | 1920 x 1080 (1080p), 1280 x 720 (720p), Slo-mo video 1280 x 720 (720p) at 120 fps | 1920 x 1080 (1080p) at 30 fps | |
Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | Phase Detect Auto-Focus (PDAF), geotagging, Big Pixels technology, Quad Pixel technology |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 5 Megapixel | |
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Lens Type (2nd Camera) | - | Super wide-angle lens | |
Lens Aperture (2nd Camera) | - | F/2.2 | |
Field of View (2nd Camera) | - | 115 degree(s) | |
Minimum Focal Length (2nd Camera) | - | 16 mm |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
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Lens Aperture (3rd Camera) | - | F/2.4 | |
Field of View (3rd Camera) | - | 88.9 degree(s) | |
Camera Functions (3rd Camera) | - | Depth camera |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 2 Megapixel | |
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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 |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 5 Megapixel | 13 Megapixel | LG K51S has better front camera resolution than Xiaomi Redmi Note 4x. |
Lens Type (Front) | Wide-angle lens | - | |
Lens Aperture (Front) | F/2.0 | - | |
Camera Modes (Front) | Real time beauty mode, Beautify with 36 smart beauty profiles | Gesture Shot, Selfie portrait | |
Face Recognition (Face ID) | Face recognition | Face detection | Both phones have face detection. |
Camera Features (Front) | Selfie countdown | 17 filters |
BATTERY AND CHARGING | Xiaomi Redmi Note 4x | LG K51S |
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Battery Capacity (Battery Size) | 4100 mAh | 4000 mAh | Xiaomi Redmi Note 4x has larger battery capacity than LG K51S. |
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Standby Time | 264 hours | 100 hours | Xiaomi Redmi Note 4x has longer standby time than LG K51S. |
Talk Time | 3060 minutes | 480 minutes | Xiaomi Redmi Note 4x has longer battery life when making calls than LG K51S. |
Run Time Details | Talk (2G): up to 3060 min Playback (video): up to 18 hrs Gaming: up to 15 hrs Standby (4G): up to 264 hrs Playback (audio): up to 162 hrs Reading: up to 22 hrs |
Talk: up to 480 min Standby: up to 100 hrs |
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Battery Technology | - | Lithium Ion |
CELLULAR | Xiaomi Redmi Note 4x | LG K51S |
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Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | - | Android 9.0 Pie | |
User Interface | MIUI 8 | LG UX 9 | |
Intelligent Assistant | - | Google Assistant | |
Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS |
COMMUNICATIONS | Xiaomi Redmi Note 4x | LG K51S |
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Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
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2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | - | |
3G UMTS Frequency | 2100, 1900, 850, 900 | - | |
4G LTE Band | Band 1, Band 3, Band 5, Band 7, 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 1800+, FDD 850, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | |
Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n | IEEE 802.11a/b/g/n | |
Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 BLE | |
Bluetooth Profiles | HID | HFP, HSP, OPP, PAN, SPP, GOEP, A2DP, AVRCP, HID, SAP, GAVDP, PBAP, MAP, GATT, HDP, HOGP, ScPP | |
NFC | - | Yes | LG K51S has NFC reader for mobile payments. |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | Xiaomi Redmi Note 4x | LG K51S |
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Supported Digital Audio Standards | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | |
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Supported Digital Video Standards | 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 Redmi Note 4x | LG K51S |
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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 | |
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Sensors | Accelerometer, ambient light sensor, gyro sensor, hall sensor, distance sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
Security Devices | - | Fingerprint reader | |
Additional Phone Features | Infrared remote control | 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 Redmi Note 4x | LG K51S |
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Included Accessories | USB cable, power adapter, SIM card removal tool | Power adapter, SIM card removal tool, USB-C cable | |
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Compliant Standards | - | MIL-STD 810G |