LG X400 (K121K) vs Motorola Moto G9 Power (XT2091-4)

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Side by side comparison between LG X400 vs Motorola Moto G9 Power phones, differences, pros, cons and full specifications. What's the better?

1/31/2021 11:12 AM, updated: 11/28/2021 12:28 PM

Compare Motorola Moto G9 Power X LG X400 (K121K) 06Points

Specifications Compare Models Pictures

5.3"
IPS

720x1280

13
MP

5mp

2GB
RAM

Octa-core

2800
mAh

(Removable)

21Points Motorola Moto G9 Power (XT2091-4) Compare LG X400 X

Specifications Compare Models Pictures

6.8"
IPS

720x1640

64
MP

16mp

4GB
RAM

Octa-core

6000
mAh

(Non removable)

What's the better phone? Motorola Moto G9 Power (XT2091-4)

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!

6 Advantages LG X400 (K121K)	vs	21 Advantages Motorola Moto G9 Power (XT2091-4)
+142 grams (4.97 ounces)56% Lighter	vs	221 grams (7.74 ounces)
+8 millimeters (0.31 inches)21% Thinner	vs	9.7 millimeters (0.38 inches)
+277 PPI5% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	263 PPI
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
+Digital TVAdvantage Watch your favorite TV shows anywhere	vs	Not supported
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
1.5GHz 64bit Octa-core	vs	+2GHz 64bit Octa-core76% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+4GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
32GB (22GB available)	vs	+128GB (109GB available)4 times More internal storage for applications and files
Until 256GB microSD, microSDXC	vs	+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards
720x1280 pixels	vs	+720x1640 pixels28% Higher resolution screen
5.3"	vs	+6.8"28% Larger screen
(back) 13MP	vs	+(triple camera) 64MP + 2MP + 2MP4 times Higher resolution main camera
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
1/3" inches	vs	+1/1.97" inches52% The larger sensor camera lets you take photos with better depth.
f/2.2 (aperture)	vs	+f/1.8 (aperture)22% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MP	vs	+(front) 16MP2 times Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
Android 8.0 Oreo	vs	+Android 10Advantage Android 10 is newer and safer
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 400 Mbps33% Faster for surfing the internet and download files
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
2800 mAh	vs	+6000 mAh114% 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) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0, USB OTG On-The-Go	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+Water repellent nano-coating (don't immerse)Advantage Protection against water allows you talk to your friends in the rain, for example

21 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

+14 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

📱 Model features
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Change model		Choose the model
Model	X400 (K121K)	Moto G9 Power (XT2091-4)
Other model names	KT LG X400, LGM-K121K, LGMK121K (Korea Telecom)	Lenovo Moto G9 Power XT2091-4
Country or region available	South Korea	(Latin America), Brazil
Brand	LG	Motorola
Release date	2/1/2017	12/5/2020
Depth	8 millimeters (0.31 inches)	9.7 millimeters (0.38 inches)
Size (width x height)	75.29 x 148.7 millimeters (2.96 x 5.85 in)	76.79 x 172.14 millimeters (3.02 x 6.78 in)
Weight	142 grams (4.97 ounces)	221 grams (7.74 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Water repellent nano-coating (don't immerse)
📲 Display
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	5.3" inches	6.8" inches
Screen-to-body ratio	~69.2% (screen-to-body ratio)	~83.1% (screen-to-body ratio)
Display resolution	720x1280 pixels	720x1640 pixels (20.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	277 PPI	263 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
System version	Android 7.0 Nougat	Android 10
Firmware update	Android 8.0 Oreo	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Chipset	64bit: MediaTek MT6750 (28nm)	64bit: Qualcomm Snapdragon 662 SM6115 (11nm)
CPU	Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core)	Octa-core, 2 processors: 4x 2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)
GPU graphical controller	ARM Mali-T860 MP2 520Mhz	Qualcomm Adreno 610 950Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
RAM memory	2GB LPDDR3	4GB LPDDR4X
Internal storage	32GB (22GB available)	128GB (109GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	400/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Tri-Band 900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE	LTE Cat13 (1, 2, 3, 4, 5, 7, 28, 66) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE
📷 Camera
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Back camera (main camera)	13 megapixels	(triple camera) 64 megapixels 2MP macro f/2.4AF 2MP depth f/2.4
Main camera resolution	4160x3120 pixels	10120x6328 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.2 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	1/3" inches	1/1.97" inches
Pixel size	1.12µm pixel	0.7µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo only main camera	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Front camera (secondary)	5 megapixels	16 megapixels
Front camera resolution	2560x1920 pixels	4608x3456 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.4 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/5" inches	feature not registered
Pixel size	1.12µm pixel	1µm pixel
🔉 Sound and multimedia
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	FM
TV	Digital TV	Not supported
Video formats	MP4, 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 X400 (K121K)	Moto G9 Power (XT2091-4)
USB	MicroUSB 2.0, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.2 + A2DP	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, GLONASS	A-GPS, GeoTagging, GLONASS, GALILEO
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	2800 mAh	6000 mAh
Charger, watts	Wired charging	20W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	9 hours	feature not registered
Standby	390 hours (16.3 days)	feature not registered
➕ Other features
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
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: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea)	• Colors: Electric Violet, Metallic Sage
☢️ Radiation rate
	LG X400 (K121K)	Moto G9 Power (XT2091-4)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered