Phone Comparison - LG Optimus 4X HD vs Acer Liquid S1 vs Lenovo S820

general General Info

Manufacturer LG Acer Lenovo
Announced February 2012 June 2013 May 2013
Status Available - June 2012 Coming Soon - Q3 2013 Available - May 2013
Colors Black Black Flamingo red
Form Factor Candybar Candybar Candybar
Dimension 132.4 x 68.1 x 8.9mm
(5.21 x 2.68 x 0.35in)
- 139.5 x 69.7 x 9 mm
(5.49 x 2.74 x 0.35 in)
Weight 133 g (4.69 oz) 195 g (6.88 oz) 143 g (5.04 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900
3G Network HSDPA 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 900 / 2100
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.2 (Jelly Bean) Android OS, v4.2 (Jelly Bean)
Processor Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 Quad-core 1.5 GHz Cortex A-7, MTK 6589 Quad-core 1.2 GHz, MTK 6589W
GPU ULP GeForce PowerVR SGX 544MP PowerVR SGX544
RAM 1 GB 1 GB 1 GB
Internal Memory 16 GB storage 8 GB storage 4 GB
External Memory Upto 16 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type HD-IPS LCD capacitive touchscreen TFT capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.7 inches 5.7 inches 4.7 inches
Resolution 720 x 1280 pixels (312 ppi) 720 x 1280 pixels (258 ppi) 720 x 1280 pixels (312 ppi)
Screen-to-Body Ratio 67.74% - 62.82%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Yes - FM radio; built-in antenna
Games Yes Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 8 MP, 3264 x 2448 pixels 12 MP, 4000 x 3000 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Face And Smile Detection, Touch Focus, Image Stabilization Auto-focus, Geo tagging Auto focus, Geo-tagging, Touch Focus, Face Detection
Video Yes, 1080p@30fps Yes Yes
Front Camera Yes, 1.3 MP [Similar] Yes [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 Yes
Edge Class 12 Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, HSUPA
Bluetooth Yes, with A2DP Yes, v4.0 with A2DP Yes, v3.0 with A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual band
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 Yes, with A-GPS support
Browser HTML5, Adobe Flash HTML5 HTML

memory User Memory

Internal 16 GB storage, 1 GB RAM 8 GB storage, 1 GB RAM 4 GB, 1 GB RAM
Expandable Storage Yes microSD, up to 32 GB microSD, up to 32 GB

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 not supported NFC not supported

battery Battery

Type Standard battery, Li-Ion Li-Ion Battery Li-Po Battery
Capacity 2150 mAh 2400 mAh 2000 mAh
Stand by Up to 730 h (2G)
Up to 686 h (3G)
- Up to 140 h (2G)
Up to 140 h (3G)
Talk Time Up to 9 h 20 min (2G)
Up to 10 h 50 min (3G)
- Up to 22 h (2G)
Up to 10 h (3G)