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LG X400 (K121L) vs Xiaomi Redmi 9C (32GB)

Side by side comparison between LG X400 vs Xiaomi Redmi 9C phones, differences, pros, cons and full specifications. What's the better?

,
5.3"
IPS

720x1280

13
MP

5mp

2GB
RAM

Octa-core

2800
mAh

(Removable)

vs
12Points Xiaomi Redmi 9C (32GB) Compare LG X400 X
6.53"
IPS

720x1600

13
MP

5mp

2GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Xiaomi Redmi 9C (32GB)

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!

X400 (K121L)} 9 Advantages LG X400 (K121L) vs Redmi 9C (32GB)} 12 Advantages Xiaomi Redmi 9C (32GB)
+32GB (22GB available)10%
More internal storage for applications and files
vs32GB (20GB available)
+142 grams (4.97 ounces)38%
Lighter
vs196 grams (6.86 ounces)
+8 millimeters (0.31 inches)13%
Thinner
vs9 millimeters (0.35 inches)
+277 PPI3%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs269 PPI
+1/3" inches3%
The larger sensor camera lets you take photos with better depth.
vs1/3.1" inches
+CompassAdvantage
Sensors help you use the device
vsNot supported
+Li-Ion: lithium-ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: li-ion polymer (Non removable)
+Digital TVAdvantage
Watch your favorite TV shows anywhere
vsNot supported
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
1.5GHz 64bit Octa-corevs+2.3GHz 64bit Octa-core (12nm)80%
More powerful processor, you can open your applications faster
2GB LPDDR3vs+2GB LPDDR4XAdvantage
This RAM type is better and more efficient.
Until 256GB microSD, microSDXCvs+Until 512GB microSD, microSDXC100%
More external storage for files using memory cards
720x1280 pixelsvs+720x1600 pixels25%
Higher resolution screen
5.3"vs+6.53"23%
Larger screen
(back) 13MPvs+(triple camera) 13MP + 2MP + 2MP29%
Higher resolution main camera
HDR photo only main cameravs+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
Android 8.0 Oreovs+Android 10Advantage
Android 10 is newer and safer
Not supportedvs+Face unlock 2DAdvantage
Sensors help you use the device
2800 mAhvs+5000 mAh79%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM)
(dedicated slot)Advantage
You can have more mobile carriers/operators on the same device.
4.2 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster

29 Common items in both devices
Plastic body, glass front
TFT IPS LCD
16 million
LED flash
Only digital zoom
Autofocus / PDAF: phase detection autofocus
EIS: Digital stabilization
+22 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 X400 (K121L)Redmi 9C (32GB)
ModelX400 (K121L)Redmi 9C (32GB)
Other model namesLG U+ X400, LGM-K121L, LGMK121L (LG Uplus)Xiaomi Redmi 9C (M2006C3MG)
Country or region availableSouth Korea
South Korea
(Global, International)
(Global, International)
BrandLGXiaomi
Release date2/1/20178/12/2020, Announced: 6/30/2020
Depth8 millimeters (0.31 inches)9 millimeters (0.35 inches)
Size (width x height)75.29 x 148.7 millimeters (2.96 x 5.85 in)77.07 x 164.9 millimeters (3.03 x 6.49 in)
Weight142 grams (4.97 ounces)196 grams (6.86 ounces)
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersNot supportedNot supported

📲 Display

LG X400 (K121L)Redmi 9C (32GB)
Display typeTFT IPS LCDTFT IPS LCD
Screen size5.3" inches6.53" inches
Screen-to-body ratio~69.2% (screen-to-body ratio)~81% (screen-to-body ratio)
Display resolution720x1280 pixels720x1600 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)277 PPI269 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Refresh ratefeature not registered60Hz
Display featuresfeature not registered400nits[typ]

🤖 Operating System

LG X400 (K121L)Redmi 9C (32GB)
System versionAndroid 7.0 NougatAndroid 10
Firmware updateAndroid 8.0 Oreofeature not registered
User Interfacefeature not registeredfeature not registered

⚙️ Processor

LG X400 (K121L)Redmi 9C (32GB)
Chipset64bit: MediaTek MT6750 (28nm)64bit: MediaTek Helio G35 (MT6765V) (12nm)
CPUOcta-core, 2 processors:
4x 1.5GHz ARM Cortex-A53 (Quad-core)
4x 1GHz ARM Cortex-A53 (Quad-core)
Octa-core, 2 processors:
4x 2.3GHz ARM Cortex-A53 (Quad-core)
4x 1.8GHz ARM Cortex-A53 (Quad-core)
GPU graphical controllerARM Mali-T860 MP2 520MhzPowerVR GE8320 MP2 (680MHz)
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

LG X400 (K121L)Redmi 9C (32GB)
RAM memory2GB LPDDR32GB LPDDR4X
Internal storage32GB (22GB available)32GB (20GB available)
eMMC 5.1
External storageUntil 256GB microSD, microSDXC
(dedicated slot)
Until 512GB microSD, microSDXC
(dedicated slot)

📶 Mobile networks

LG X400 (K121L)Redmi 9C (32GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload300/50 Mbps300/50 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bands Expand band details Collapse details
GSM MHz bandTri-Band 900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 2100UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8)
VoLTE
LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedGPRS, EDGE

📷 Camera

LG X400 (K121L)Redmi 9C (32GB)
Back camera (main camera)13 megapixels(triple camera)
13 megapixels
2MP macro f/2.4
2MP depth f/2.4
Main camera resolution4160x3120 pixels4128x3096 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/2.2 (aperture)f/2.2 (aperture)
Focal lengthfeature not registered28mm (lens)
Sensor size1/3" inches1/3.1" inches
Pixel size1.12µm pixel1.12µm pixel
AutofocusAutofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo only main cameraHDR photo on both cameras
Camera extrasfeature not registeredfeature not registered

📸 Front camera

LG X400 (K121L)Redmi 9C (32GB)
Front camera (secondary)5 megapixels5 megapixels
Front camera resolution2560x1920 pixels2560x1920 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.4 (aperture)f/2.2 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/5" inchesfeature not registered
Pixel size1.12µm pixel1.12µm pixel

🔉 Sound and multimedia

LG X400 (K121L)Redmi 9C (32GB)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
RadioFM (RDS)FM
TVDigital TVNot supported
Video formatsMP4, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

LG X400 (K121L)Redmi 9C (32GB)
USBMicroUSB 2.0, USB OTG On-The-GoMicroUSB 2.0, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputNot supportedUSB Type-C (reversible)
Bluetooth4.2 + A2DP5.0 + A2DP/LE
WiFi802.11 b/g/n [wifi4] (2.4GHz)
WiFi Direct, hotspot
802.11 b/g/n [wifi4] (2.4GHz)
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS, BeiDou
NFCSupportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

LG X400 (K121L)Redmi 9C (32GB)
SensorsAccelerometer
Ambient light sensor
Compass
Fingerprint sensor (rear-mounted)
Proximity sensor
Accelerometer
Ambient light sensor
Face unlock 2D
Fingerprint sensor (rear-mounted)
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

LG X400 (K121L)Redmi 9C (32GB)
Battery typeLi-Ion: lithium-ion (Removable)LiPo: li-ion polymer (Non removable)
Battery capacity2800 mAh5000 mAh
Charger, wattsWired charging10W (5V/2A) Wired charging
Inductive / wireless chargingfeature not registeredNot supported
Talk time autonomy9 hours32 hours (1.3 days)
Standby390 hours (16.3 days)feature not registered

➕ Other features

LG X400 (K121L)Redmi 9C (32GB)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Black, Gold
• 2.5D Arc Glass screen
• LG UX 5.0
• Wide-angle 120° front camera
• KnockOn, Knock Code
• DMB-TV (Korea)
• Colors: Midnight Gray, Sunrise Orange, Twilight Blue
• MIUI 12

☢️ Radiation rate

LG X400 (K121L)Redmi 9C (32GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered0.73W/kg (head), 0.52W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.35W/kg (head), 0.78W/kg (body)
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