| Hardware and OS | Karbonn A1 | vivo Y11 |
| Operating system | Android 2.3.6 (Gingerbread) | Android 4.4.4 (KitKat) |
| Processor | 1.0 GHz | Quad-core 1.3 GHz Cortex-A7 |
| Chipset | | Mediatek MT6582М |
| GPU | | Mali-400MP2 |
| Internal memory | 256MB RAM | 4 GB, 512 MB RAM |
| External memory | microSDHC (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Karbonn A1 | vivo Y11 |
| Type | TFT capacitive touchscreen, 256K colors | IPS LCD |
| Size | 3.5 inches, 36.5 cm2 | 4" inc |
| Resolution | 320 x 480 pixels, 3:2 ratio | 480 x 800 px |
| Touchscreen | | capacitive touchscreen |
| Screen-to-Body Ratio | | 59.2% |
| Display area | | 45.5 cm2 |
| Display aspect ratio | | 5:3 (height:width) |
| Pixel Density | | 233 PPI |
| Colors | | 16M |
| Main Camera | Karbonn A1 | vivo Y11 |
| Camera | 3 MP | |
| Video | Yes | |
| Selfie camera | Karbonn A1 | vivo Y11 |
| Camera | VGA | |
| Connectivity | Karbonn A1 | vivo Y11 |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi | | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Network | | GSM / HSPA |
| Technology | GSM | |
| SIM card | | Dual SIM (Micro-SIM, dual stand-by) |
| Bluetooth | 2.1, A2DP | 4.0, A2DP, EDR |
| WLAN | Wi-Fi 802.11 b/g | |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | No | Yes, with A-GPS |
| Speed | | HSPA 21.1/7.2 Mbps |
| USB | microUSB 2.0 | microUSB 2.0, USB Host |
| Camera | Karbonn A1 | vivo Y11 |
| Main camera | | 5 MP, Single |
| Specs | | 5 MP, AF |
| Features | | LED flash |
| Video | | 1080p@30fps |
| Selfie camera | | 2 MP, Single |
| Multimedia | Karbonn A1 | vivo Y11 |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Features | Karbonn A1 | vivo Y11 |
| Sensors | Accelerometer, proximity | |
| Design | Karbonn A1 | vivo Y11 |
| SIM | Dual SIM (Mini-SIM) | |
| Colors | Ivory White | White, Black |
| Dimensions | 114.5 x 60.6 x 13.8 mm (4.51 x 2.39 x 0.54 in) | 123 x 62.5 x 8.8 mm |
| Weight | 130 g (4.59 oz) | 124 g |
| Battery | Karbonn A1 | vivo Y11 |
| Capacity | Removable Li-Ion 1500 mAh battery | |
| Stand-by | Up to 240 h | |
| Talk time | Up to 4 h | |
| Battery capacity | | 1700 mAh, Removable Li-Po |
| Battery life | | Talking time- Up to 11 h (2G) / Up to 8 h (3G)
Music play - Up to 34 h |
| Other | Karbonn A1 | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | | Accelerometer, proximity , Infrared port |
