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

general General Info

Manufacturer Acer LG Lenovo
Announced October 2009 February 2012 May 2013
Status Available - December 2009 Available - June 2012 Available - May 2013
Colors Black, White, Red Black Flamingo red
Form Factor Candybar Candybar Candybar
Dimension 115 x 62.5 x 12.5 mm
(4.53 x 2.46 x 0.49 in)
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 135 g (4.76 oz) 133 g (4.69 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 900 / 1900 / 2100 HSDPA 900 / 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v1.6 (Donut) Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.2 (Jelly Bean)
Processor 768 MHz Scorpion, Qualcomm QSD8250 Snapdragon Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 Quad-core 1.2 GHz, MTK 6589W
GPU Adreno 200 ULP GeForce PowerVR SGX544
RAM 256 MB 1 GB 1 GB
Internal Memory N/A 16 GB storage 4 GB
External Memory microSD, up to 32GB Upto 16 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen HD-IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen
Colors 256K colors 16M colors 16M colors
Size 3.5 inches 4.7 inches 4.7 inches
Resolution 480 x 800 pixels (267 ppi) 720 x 1280 pixels (312 ppi) 720 x 1280 pixels (312 ppi)
Screen-to-Body Ratio 48.35% 67.74% 62.82%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No Yes FM radio; built-in antenna
Games Yes Yes Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 5 MP, 2560х1920 pixels 8 MP, 3264x2448 pixels 12 MP, 4000 x 3000 pixels
Flash No LED flash LED flash
Features Auto focus, Geo-tagging Auto focus, Geo-tagging, Face And Smile Detection, Touch Focus, Image Stabilization Auto focus, Geo-tagging, Touch Focus, Face Detection
Video Yes, VGA@20fps Yes, 1080p@30fps Yes
Front Camera No [Similar] Yes, 1.3 MP [Similar] Yes, 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes
Edge Class 10, 236.8 kbps Class 12 Yes
3G HSDPA, 7.2 Mbps; HSUPA, 2.0 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, HSUPA
Bluetooth Yes, v2.0 with A2DP Yes, with A2DP Yes, v3.0 with A2DP
Wi-Fi Wi-Fi 802.11 b/g Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual band
USB Yes, miniUSB Yes, microUSB (MHL) v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS support
Browser HTML HTML5, Adobe Flash HTML

memory User Memory

Internal 256MB RAM, 512MB ROM 16 GB storage, 1 GB RAM 4 GB, 1 GB RAM
Expandable Storage microSD, up to 32GB Yes 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 Standard battery, Li-Ion Li-Po Battery
Capacity 1350 mAh 2150 mAh 2000 mAh
Stand by Up to 400 h Up to 730 h (2G)
Up to 686 h (3G)
Up to 140 h (2G)
Up to 140 h (3G)
Talk Time Up to 5 h Up to 9 h 20 min (2G)
Up to 10 h 50 min (3G)
Up to 22 h (2G)
Up to 10 h (3G)