Phone Comparison - LG Optimus 4X HD vs Amazon Kindle Fire HDX vs BLU Studio 5.3 S

general General Info

Manufacturer LG Amazon BLU
Announced February 2012 September 2013 April 2013
Status Available - June 2012 Available - October 2013 Available - May 2013
Colors Black Black Black, White
Form Factor Candybar Candybar Candybar
Dimension 132.4 x 68.1 x 8.9mm
(5.21 x 2.68 x 0.35in)
186 x 128 x 9 mm
(7.32 x 5.04 x 0.35 in)
153 x 78 x 9.2 mm
(6.02 x 3.07 x 0.36 in)
Weight 133 g (4.69 oz) 303 g/ 311 g (10.69 oz/ 10.97 oz) 190 g (6.7 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 1900 / 2100 HSDPA HSDPA 850 / 1900 - D590a
HSDPA 850 / 2100 - D590i
4G Network - LTE -
Messaging SMS, MMS, Push Mail, EMail, IM , Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.x (Jelly Bean - customized) Android OS, v4.1.2 (Jelly Bean)
Processor Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 Quad-core 2.2 GHz Krait 400, Qualcomm Snapdragon 800 Quad-core 1.2 GHz Cortex-A5, Qualcomm MSM8225Q Snapdragon
GPU ULP GeForce Adreno 330 Adreno 203
RAM 1 GB 2 GB 1 GB
Internal Memory 16 GB storage 16/32/64 GB 4 GB ROM
External Memory Upto 16 GB No microSD, up to 32 GB

display Display

Type HD-IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen LED-backlit IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.7 inches 7.0 inches 5.3 inches
Resolution 720 x 1280 pixels (312 ppi) 1200 x 1920 pixels (323 ppi) 540 x 960 pixels (208 ppi)
Screen-to-Body Ratio 67.74% 59.84% 64.78%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Yes No Stereo FM radio
Games Yes Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 1.3 MP, 1280 x 1024 pixels 8 MP, 3264 x 2448 pixels
Flash LED flash No dual-LED flash
Features Auto focus, Geo-tagging, Face And Smile Detection, Touch Focus, Image Stabilization - Auto focus, Geo-tagging, Touch Focus, Image Stabilization, Face And Smile Detection
Video Yes, 1080p@30fps Yes, 720p Yes, 720p@30fps
Front Camera Yes, 1.3 MP [Similar] No [Similar] Yes, 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps
Edge Class 12 Yes Class 12
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA+, LTE HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, with A2DP Yes Yes, v3.0
Wi-Fi Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, Wi-Fi hotspot
USB Yes, microUSB (MHL) v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support (4G model) Yes, with A-GPS support
Browser HTML5, Adobe Flash HTML5 (Amazon Silk) HTML5, Adobe Flash

memory User Memory

Internal 16 GB storage, 1 GB RAM 16/32/64 GB, 2 GB RAM 4 GB ROM, 1 GB RAM
Expandable Storage Yes No microSD, up to 32 GB

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor not present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Standard battery, Li-Ion Non-removable Li-Ion battery Li-Ion Battery
Capacity 2150 mAh - 2800 mAh
Stand by Up to 730 h (2G)
Up to 686 h (3G)
- Up to 990 h (2G)
Up to 940 h (3G)
Talk Time Up to 9 h 20 min (2G)
Up to 10 h 50 min (3G)
Up to 11 h Up to 33 h (2G)
Up to 26 h (3G)