Phone Comparison - LG Optimus L9 vs Amazon Fire Phone vs Xiaomi Mi 4i

general General Info

Manufacturer LG Amazon Xiaomi
Announced August 2012 June 2014 April 2015
Status Available - November 2012 Available - July 2014 Available - April 2015
Price - - Rs. 8,999 ($132.34) [Similarly Priced]
Colors White Black Black, White, Blue, Yellow, Pink
Form Factor Candybar Candybar Candybar
Dimension 131.9 x 68.2 x 9.1 mm
(5.19 x 2.69 x 0.36 in)
139.2 x 66.5 x 8.9 mm
(5.48 x 2.62 x 0.35 in)
138.1 x 69.6 x 7.8 mm
(5.44 x 2.74 x 0.31 in)
Weight 125 g (4.41 oz) 160 g (5.64 oz) 130 g (4.59 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network - LTE 700 / 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600 LTE
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM
Build Features - - 3D Dynamic Perspective UI
- System Wide Tilt, Auto-scroll, Swivel and Peek Functions
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hardware Hardware and OS

OS Android OS, v4.0.4 (Ice Cream Sandwich) Fire OS 3.5.0 Android OS, v5.0 (Lollipop)
Processor Dual-core 1 GHz Cortex-A9, TI OMAP 4430 Quad-core 2.2 GHz Krait 400, Qualcomm Snapdragon 800 Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615
GPU PowerVR SGX540 Adreno 330 Adreno 405
RAM 1 GB 2 GB 2 GB
Internal Memory 4 GB 32/64 GB 16/32 GB
External Memory microSD, up to 32 GB No No

display Display

Type IPS LCD, capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 (front and back) IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.7 inches 4.7 inches 5.0 inches
Resolution 540 x 960 pixels (234 ppi) 720 x 1280 pixels (312 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 67.90% 65.98% 71.57%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592 x 1944 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash LED flash LED Flash LED flash
Features Auto focus, Geo-tagging Auto-focus, Geo-tagging, HDR, OIS Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR
Video Yes Yes, 1080p@30fps 1080p@30fps
Front Camera Yes, VGA [Similar] Yes, 2.1 MP, 1080p@30fps [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes Yes
Edge Class 12 Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA+, LTE HSPA, LTE
Bluetooth Yes, with A2DP Yes, v3.0 v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot, DLNA Wi-Fi 802.11 a/b/g/n/ac, dual-band Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

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

Apps Sensors

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

battery Battery

Type Standard battery, Li-Ion Non-removable Li-Ion Battery Li-Po Battery
Capacity 2150 mAh 2400 mAh 3120 mAh
Stand by - Up to 285 h -
Talk Time - Up to 22 h -