Android 5.1 (Lollipop), Klick UI with 21 Indian regional languages, smart gesture motion controls & Dual SIM 4G setups
Chipset
MediaTek MT6735M (28 nm 64-bit 1.0GHz Quad-Core Cortex-A53 & ARM Mali-T720 MP1 GPU @ 400MHz with 720p Hardware Video Decoder)
RAM
2GB High-Speed LPDDR3 RAM (2GB RAM Flagship!)
Storage
16GB Massive High-Speed Internal Storage (12.8GB User Accessible)
Display
5.0 inches • 720 x 1280 pixels (16:9, 294 ppi HD!)
Main camera
8.0 MP Main (Autofocus, LED flash, 720p@30fps video)
Selfie camera
5.0 MP Wide (88° Wide-angle lens, 720p HD video for Video Calling)
Battery
2200 mAh User-Replaceable / Removable Battery (Powers over 12 hours calling / 380 hours standby!), Micro-USB 2.0 charging • Removable Li-Po 2200 mAh (8.36 Wh)
Weight
140 g (4.94 oz)
Latest Karbonn Quattro L51 HD user agents:
User Agent
Browser
Platform
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.2.5.1102 Mobile Safari/537.36
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/40.0.2214.89 UCBrowser/11.5.0.1015 Mobile Safari/537.36
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/40.0.2214.89 UCBrowser/11.4.8.1012 Mobile Safari/537.36
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.4.5.1005 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.3.8.976 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.3.2.960 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.3.0.950 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.2.8.945 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.2.0.915 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.1.5.890 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.1.0.882 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.0.8.855 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.0.5.850 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.0.0.828 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/10.8.8.730 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/10.8.0.718 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/10.4.1.565 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/10.10.8.820 U3/0.8.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 5.1; en-US; Karbonn Quattro L51 HD Build/KOT49H) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/10.10.5.809 U3/0.8.0 Mobile Safari/534.30