Phone Comparison - LG Optimus Black P970 vs Acer Liquid E2 Duo vs Lenovo P780

general General Info

Manufacturer LG Acer Lenovo
Announced January 2011 April 2013 June 2013
Status Available - May 2011 Coming Soon - May 2013 Available - June 2013
Colors Black, Pink, Silver, White, Brown Black, White Black
Form Factor Candybar Candybar Candybar
Dimension 122 x 64 x 9.2 mm
(4.8 x 2.52 x 0.36 in )
131 x 68 x 9.9 mm
(5.16 x 2.68 x 0.39 in)
143 x 73 x 10 mm
(5.63 x 2.87 x 0.39 in)
Weight 109 g (3.84 oz) 140 g (4.94 oz) 176 g (6.21 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 1700 / 2100
HSDPA 900 / 1900 / 2100
HSDPA HSDPA 900 / 2100
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v2.2 (Froyo), upgradable to v2.3 Android OS, v4.2.1 (Jelly Bean) Android OS, v4.2 (Jelly Bean)
Processor 1 GHz Cortex-A8, TI OMAP 3630 Quad-core 1.2 GHz Cortex-A7, MTK 6589 Quad-core 1.2 GHz Cortex-A7, MTK 6589
GPU PowerVR SGX530 PowerVR SGX 544MP PowerVR SGX544
RAM 512 MB 1 GB 1 GB
Internal Memory 2 GB storage (1 GB user-available) 4 GB 4 GB
External Memory microSD, up to 32GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 4.5 inches 5.0 inches
Resolution 480 x 800 pixels (233 ppi) 540 x 960 pixels (245 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 58.44% 62.55% 65.90%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio with RDS FM radio FM radio
Games Yes + downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 5 MP, 2592 x 1944 pixels 8 MP, 3264 x 2448 pixels 8 MP, 3264 x 2448 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Face And Smile Detection Auto focus, Geo-tagging Auto focus, Geo-tagging, Touch Focus, Face Detection
Video Yes, 720p@30fps Yes, 1080p@30fps Yes
Front Camera Yes, 2 MP [Similar] Yes, 2 MP [Similar] Yes, 1.2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Up to 48 kbps Yes Yes
Edge Up to 237 kbps Yes Yes
3G HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps HSPA+ HSDPA, HSUPA
Bluetooth Yes, v2.1 with A2DP, EDR Yes, v3.0 with A2DP, EDR Yes, v3.0
Wi-Fi Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0, USB On-the-go
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS support
Browser HTML, Adobe flash HTML HTML

memory User Memory

Internal 2 GB storage (1 GB user-available), 512 MB RAM 4 GB, 1 GB RAM 4 GB, 1 GB RAM
Expandable Storage microSD, up to 32GB microSD, up to 32 GB microSD, up to 32 GB
USB OTG - - Supported

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 1500 mAh 2000 mAh 4000 mAh
Stand by Up to 375 h Up to 450 h Up to 840 h
Talk Time Up to 6 h Up to 9 h Up to 43 h (2G)
Up to 25 h (3G)