LG X400 (K121L) vs Lenovo Phab 2 Pro (PB2-690M)

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Side by side comparison between LG X400 vs Lenovo Phab 2 Pro phones, differences, pros, cons and full specifications. What's the better?

4/29/2017 8:57 PM, updated: 5/11/2020 12:43 PM

Compare Lenovo Phab 2 Pro X LG X400 (K121L) 07Points

Specifications Compare Models Pictures

5.3"
IPS

720x1280

13
MP

5mp

2GB
RAM

Octa-core

2800
mAh

(Removable)

13Points Lenovo Phab 2 Pro (PB2-690M) Compare LG X400 X

Specifications Compare Models Pictures

6.4"
IPS

1440x2560

16
MP

8mp

4GB
RAM

Octa-core

4050
mAh

(Non removable)

What's the better phone? Lenovo Phab 2 Pro (PB2-690M)

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!

7 Advantages LG X400 (K121L)	vs	13 Advantages Lenovo Phab 2 Pro (PB2-690M)
+142 grams (4.97 ounces)82% Lighter	vs	259 grams (9.07 ounces)
+8 millimeters (0.31 inches)34% Thinner	vs	10.7 millimeters (0.42 inches)
+Android 8.0 OreoAdvantage Android 8.0 Oreo is newer and safer	vs	Android 6.0.1 Marshmallow
+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
+4.2 + A2DPAdvantage Bluetooth 4.2 + A2DP is newer and faster	vs	4.0 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
1.5GHz 64bit Octa-core	vs	+1.8GHz 64bit Octa-core34% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+4GB LPDDR3100% More RAM memory. Typically more responsive and better for multitasking.
32GB (22GB available)	vs	+64GB (52GB available)136% More internal storage for applications and files
720x1280 pixels	vs	+1440x2560 pixels3 times Higher resolution screen
277 PPI	vs	+459 PPI66% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.3"	vs	+6.4"21% Larger screen
(back) 13MP	vs	+(back) 16MP23% Higher resolution main camera
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
(front) 5MP	vs	+(front) 8MP63% Higher resolution secondary camera to take pictures and selfies
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
2800 mAh	vs	+4050 mAh45% 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

23 Common items in both devices

Until 256GB microSD, microSDXC

TFT IPS LCD

16 million

Only digital zoom

Autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

HDR photo only main camera

+16 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 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
Change model		Choose the model
Model	X400 (K121L)	Phab 2 Pro (PB2-690M)
Other model names	LG U+ X400, LGM-K121L, LGMK121L (LG Uplus)	Lenovo Phab2 Pro Dual-Sim 64GB PB2-690M
Country or region available	South Korea	(Global, International), United Arab Emirates, (Europe)
Brand	LG	Lenovo
Release date	2/1/2017	11/1/2016
Depth	8 millimeters (0.31 inches)	10.7 millimeters (0.42 inches)
Size (width x height)	75.29 x 148.7 millimeters (2.96 x 5.85 in)	88.6 x 179.8 millimeters (3.49 x 7.08 in)
Weight	142 grams (4.97 ounces)	259 grams (9.07 ounces)
Build, materials	Plastic body, glass front	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	5.3" inches	6.4" inches
Screen-to-body ratio	~69.2% (screen-to-body ratio)	~70.9% (screen-to-body ratio)
Display resolution	720x1280 pixels	1440x2560 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	277 PPI	459 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
System version	Android 7.0 Nougat	Android 6.0.1 Marshmallow
Firmware update	Android 8.0 Oreo	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
Chipset	64bit: MediaTek MT6750 (28nm)	64bit: Qualcomm Snapdragon 652 MSM8976 (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 1.8GHz ARM Cortex-A72 (Quad-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	ARM Mali-T860 MP2 520Mhz	Qualcomm Adreno 510 600Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
RAM memory	2GB LPDDR3	4GB LPDDR3
Internal storage	32GB (22GB available)	64GB (52GB available)
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
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	300/50 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 850/900/1900/2100
Primary 4G network	LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE	LTE Cat6 800/850/900/1800/1900/2100/2600 (Bands 1,2,3,5,7,8,20) TD-LTE 2300/2500/2600 (Bands 38,40,41)
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+, TD-LTE, 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 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
Back camera (main camera)	13 megapixels	16 megapixels
Main camera resolution	4160x3120 pixels	4608x3456 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/2.2 (aperture)	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	1/3" inches	feature not registered
Pixel size	1.12µm pixel	feature not registered
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 only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
Front camera (secondary)	5 megapixels	8 megapixels
Front camera resolution	2560x1920 pixels	3264x2448 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	1.4µm pixel
🔉 Sound and multimedia
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
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.264, H.263, WMV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
USB	MicroUSB 2.0, USB OTG On-The-Go	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.2 + A2DP	4.0 + A2DP
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
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	2800 mAh	4050 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	9 hours	18 hours
Standby	390 hours (16.3 days)	312 hours (13 days)
➕ Other features
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
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: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea)	• Colors: Gunmetal Grey, Champagne Gold • Aluminum body • 2.5D curved glass • 75° wide angle front camera • Dolby Atmos audio (capture 5.1) • Quick Charge 3.0 • Fast battery charging • Google Tango • Rear camera with depth and motion tracking sensor • Verizon and Sprint not supported
☢️ Radiation rate
	LG X400 (K121L)	Lenovo Phab 2 Pro (PB2-690M)
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