Alcatel A7 (5090i) vs LG X400 (K121K)

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Side by side comparison between Alcatel A7 vs LG X400 phones, differences, pros, cons and full specifications. What's the better?

11/14/2017 7:05 PM, updated: 4/5/2021 2:44 AM

Compare LG X400 X Alcatel A7 (5090i) 11Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

16
MP

8mp

4GB
RAM

Octa-core

4000
mAh

(Non removable)

09Points LG X400 (K121K) Compare Alcatel A7 X

Specifications Compare Models Pictures

5.3"
IPS

720x1280

13
MP

5mp

2GB
RAM

Octa-core

2800
mAh

(Removable)

What's the better phone? Alcatel A7 (5090i)

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!

11 Advantages Alcatel A7 (5090i)	vs	9 Advantages LG X400 (K121K)
+4GB LPDDR3100% More RAM memory. Typically more responsive and better for multitasking.	vs	2GB LPDDR3
+1080x1920 pixels125% Higher resolution screen	vs	720x1280 pixels
+401 PPI45% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	277 PPI
+5.5"4% Larger screen	vs	5.3"
+(back) 16MP23% Higher resolution main camera	vs	(back) 13MP
+Dual-LED on main camera and LED on front cameraAdvantage The Dual-LED on main camera and LED on front camera helps in dark places or in low light	vs	LED flash
+f/2.0 (aperture)10% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.2 (aperture)
+(front) 8MP63% Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+4000 mAh43% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	2800 mAh
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
Until 128GB microSD, microSDXC	vs	+Until 256GB microSD, microSDXC100% More external storage for files using memory cards
164 grams (5.74 ounces)	vs	+142 grams (4.97 ounces)15% Lighter
9 millimeters (0.35 inches)	vs	+8 millimeters (0.31 inches)13% Thinner
(front) HD (1280x720)	vs	+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera
Android 7.0 Nougat	vs	+Android 8.0 OreoAdvantage Android 8.0 Oreo is newer and safer
Li-Ion: lithium-ion (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Not supported	vs	+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos
Not supported	vs	+Digital TVAdvantage Watch your favorite TV shows anywhere
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely

30 Common items in both devices

1.5GHz 64bit Octa-core

32GB (22GB available)

Plastic body, glass front

LTPS IPS LCD / TFT IPS LCD

16 million

Only digital zoom

PDAF: phase detection autofocus / Autofocus

+23 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
	Alcatel A7 (5090i)	LG X400 (K121K)
Change model		Choose the model
Model	Alcatel A7 (5090i)	X400 (K121K)
Other model names	Alcatel A7 (4GB RAM) OT-5090I	KT LG X400, LGM-K121K, LGMK121K (Korea Telecom)
Country or region available	(Latin America), Brazil	South Korea
Brand	Alcatel	LG
Release date	9/1/2017	2/1/2017
Depth	9 millimeters (0.35 inches)	8 millimeters (0.31 inches)
Size (width x height)	76.5 x 152.7 millimeters (3.01 x 6.01 in)	75.29 x 148.7 millimeters (2.96 x 5.85 in)
Weight	164 grams (5.74 ounces)	142 grams (4.97 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Alcatel A7 (5090i)	LG X400 (K121K)
Display type	LTPS IPS LCD	TFT IPS LCD
Screen size	5.5" inches	5.3" inches
Screen-to-body ratio	~71.4% (screen-to-body ratio)	~69.2% (screen-to-body ratio)
Display resolution	1080x1920 pixels	720x1280 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	277 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	60Hz	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Alcatel A7 (5090i)	LG X400 (K121K)
System version	Android 7.0 Nougat	Android 7.0 Nougat
Firmware update	feature not registered	Android 8.0 Oreo
User Interface	feature not registered	feature not registered
⚙️ Processor
	Alcatel A7 (5090i)	LG X400 (K121K)
Chipset	64bit: MediaTek MT6750T (28nm)	64bit: MediaTek MT6750 (28nm)
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 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	ARM Mali-T860 MP2 650Mhz	ARM Mali-T860 MP2 520Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Alcatel A7 (5090i)	LG X400 (K121K)
RAM memory	4GB LPDDR3	2GB LPDDR3
Internal storage	32GB (22GB available) eMMC 5.1	32GB (22GB available)
External storage	Until 128GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Alcatel A7 (5090i)	LG X400 (K121K)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	300/50 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	Tri-Band 900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	UMTS 2100
Primary 4G network	LTE Cat6 700/800/900/1800/2100/2600 (Bands 1,3,7,8,20,28)	LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) 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	GSM 850/900/1800/1900	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	Not supported
📷 Camera
	Alcatel A7 (5090i)	LG X400 (K121K)
Back camera (main camera)	16 megapixels	13 megapixels
Main camera resolution	4608x3456 pixels	4160x3120 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED on main camera and LED on front camera	LED flash
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/3" inches	1/3" inches
Pixel size	feature not registered	1.12µm pixel
Autofocus	PDAF: phase detection autofocus	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 only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Alcatel A7 (5090i)	LG X400 (K121K)
Front camera (secondary)	8 megapixels	5 megapixels
Front camera resolution	3264x2448 pixels	2560x1920 pixels
Video recording (secondary)	HD (1280x720)	Full HD (1920x1080)
Front flash	LED	Not supported
Focal aperture	feature not registered	f/2.4 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/5" inches
Pixel size	feature not registered	1.12µm pixel
🔉 Sound and multimedia
	Alcatel A7 (5090i)	LG X400 (K121K)
Loudspeaker	Supported	Supported
Active noise cancellation	Not supported	2 microphones or more
Radio	FM	FM (RDS)
TV	Not supported	Digital TV
Video formats	MP4, H.264, H.263	MP4, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Alcatel A7 (5090i)	LG X400 (K121K)
USB	MicroUSB 2.0	MicroUSB 2.0, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.2 + A2DP	4.2 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging, GLONASS
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Alcatel A7 (5090i)	LG X400 (K121K)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Alcatel A7 (5090i)	LG X400 (K121K)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	4000 mAh	2800 mAh
Charger, watts	10W Wired charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	17 hours	9 hours
Standby	634 hours (26.4 days)	390 hours (16.3 days)
➕ Other features
	Alcatel A7 (5090i)	LG X400 (K121K)
Call control	Voice dialing, Voice recorder	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: Metal Black • DIRAC sound	• Colors: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea)
☢️ Radiation rate
	Alcatel A7 (5090i)	LG X400 (K121K)
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