| Hardware and OS | Karbonn A40 Indian | vivo Y11 |
| Operating system | Android 7.0 Nougat | Android 4.4.4 (KitKat) |
| Processor | Quad-Core 1.3GHz Cortex-A7 | Quad-core 1.3 GHz Cortex-A7 |
| Chipset | | Mediatek MT6582М |
| GPU | ARM Mali-400 MP2, 4-Cores | Mali-400MP2 |
| RAM | 1GB | |
| Internal memory | | 4 GB, 512 MB RAM |
| Internal Storage | 8GB | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes with Modified Android | |
| Display | Karbonn A40 Indian | vivo Y11 |
| Type | TFT capacitive touchscreen | IPS LCD |
| Size | 4.0 inches | 4" inc |
| Resolution | 480 x 800 Pixels, 24 bit color depth | 480 x 800 px |
| Touchscreen | Yes Multi Touch Support | capacitive touchscreen |
| Screen-to-Body Ratio | | 59.2% |
| Display area | | 45.5 cm2 |
| Display aspect ratio | | 5:3 (height:width) |
| Pixel Density | ~ 233 PPI | 233 PPI |
| Protection | None | |
| Colors | 16M Colors | 16M |
| Features | WVGA display, ~ 233 PPI, Capacitive, Multi-touch, 2.5D curved glass screen, Corning Gorilla Glass, 400 nits Brightness, In-Cell Touch | |
| Connectivity | Karbonn A40 Indian | vivo Y11 |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 4G Network | Yes | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi Hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Network | | GSM / HSPA |
| SIM card | | Dual SIM (Micro-SIM, dual stand-by) |
| NFC | No | |
| Bluetooth | | 4.0, A2DP, EDR |
| Edge | | Yes |
| GPRS | | Yes |
| SIM | Micro SIM | |
| GPS | Yes, with GPS, A-GPS | Yes, with A-GPS |
| Dual SIM | Dual SIM (Micro, Micro) | |
| Speed | LTE : 850 / 1800 MHz LTE-TDD : 2300 MHz (Band 40) | HSPA 21.1/7.2 Mbps |
| Wireless Charging | No | |
| USB | Micro USBv2.0, With Charging and Mass Storage Function | microUSB 2.0, USB Host |
| Camera | Karbonn A40 Indian | vivo Y11 |
| Main camera | 2 Megapixels | 5 MP, Single |
| Specs | | 5 MP, AF |
| Image | 1600 x 1200 Pixels | |
| Features | Yes with Single-LED Flash | LED flash |
| Video | | 1080p@30fps |
| Selfie camera | VGA | 2 MP, Single |
| Multimedia | Karbonn A40 Indian | vivo Y11 |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| 3.5 mm Jack | yes | Yes |
| Video Playback | Yes Support 3GP, MP4, xVID, AVI, H.264, H.263 | |
| Radio | Yes | FM radio |
| Video Out | Not Support | |
| Ring Tones | Yes | |
| Design | Karbonn A40 Indian | vivo Y11 |
| Colors | | White, Black |
| Dimensions | 122.95 mm x 64.3 mm x 10.5 mm | 123 x 62.5 x 8.8 mm |
| Weight | 118 Grams (Without Battery) | 124 g |
| Waterproof | No | |
| Battery | Karbonn A40 Indian | vivo Y11 |
| 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 |
| Capacity | 1,400 mAh Lithium-Ion | |
| Placement | Removable | |
| Other | Karbonn A40 Indian | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | Accelerometer | Accelerometer, proximity , Infrared port |
