| Hardware and OS | Acer Iconia B1-721 | vivo Y11 |
| Operating system | Android 4.2 (Jelly Bean) | Android 4.4.4 (KitKat) |
| Processor | Dual-core 1.3 GHz Cortex-A7 | Quad-core 1.3 GHz Cortex-A7 |
| Chipset | Mediatek MT8312 (28 nm) | Mediatek MT6582М |
| GPU | Mali-400 | Mali-400MP2 |
| Internal memory | 16GB 1GB RAM | 4 GB, 512 MB RAM |
| External memory | microSDHC (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Acer Iconia B1-721 | vivo Y11 |
| Type | TFT | IPS LCD |
| Size | 7.0 inches, 137.9 cm2 | 4" inc |
| Resolution | 600 x 1024 pixels, 16:9 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 | Acer Iconia B1-721 | vivo Y11 |
| Camera | VGA | |
| Video | Yes | |
| Selfie camera | Acer Iconia B1-721 | vivo Y11 |
| Camera | No | |
| Connectivity | Acer Iconia B1-721 | vivo Y11 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA | |
| Wi-Fi | | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Network | | GSM / HSPA |
| SIM card | | Dual SIM (Micro-SIM, dual stand-by) |
| Bluetooth | Yes | 4.0, A2DP, EDR |
| Edge | Yes | Yes |
| NFC | No | |
| GPRS | Yes | Yes |
| GPS | Yes | Yes, with A-GPS |
| Technology | GSM / HSPA | |
| Speed | HSPA | HSPA 21.1/7.2 Mbps |
| USB | microUSB 2.0 | microUSB 2.0, USB Host |
| WLAN | Wi-Fi 802.11 b/g/n | |
| Camera | Acer Iconia B1-721 | vivo Y11 |
| Main camera | | 5 MP, Single |
| Specs | | 5 MP, AF |
| Features | | LED flash |
| Video | | 1080p@30fps |
| Selfie camera | | 2 MP, Single |
| Multimedia | Acer Iconia B1-721 | vivo Y11 |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | Acer Iconia B1-721 | vivo Y11 |
| SIM | Yes | |
| Colors | Black/Red | White, Black |
| Dimensions | 199 x 122.3 x 11.4 mm (7.83 x 4.81 x 0.45 in) | 123 x 62.5 x 8.8 mm |
| Weight | 323 g (11.39 oz) | 124 g |
| Features | Acer Iconia B1-721 | vivo Y11 |
| Sensors | Accelerometer | |
| Battery | Acer Iconia B1-721 | vivo Y11 |
| Type | Li-Po 2955 mAh, non-removable | |
| 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 | Acer Iconia B1-721 | vivo Y11 |
| Release date | | 2014, Q4 |
| Sensors | | Accelerometer, proximity , Infrared port |
