| Hardware and OS | Acer Iconia B1-721 | |
| Operating system | Android 4.2 (Jelly Bean) | |
| Processor | Dual-core 1.3 GHz Cortex-A7 | |
| Chipset | Mediatek MT8312 (28 nm) | |
| Internal memory | 16GB 1GB RAM | |
| External memory | microSDHC (dedicated slot) | |
| GPU | Mali-400 | |
| Display | Acer Iconia B1-721 | other phones |
| Size | 7.0 inches, 137.9 cm2 | |
| Resolution | 600 x 1024 pixels, 16:9 ratio | |
| Type | TFT | |
| Main Camera | Acer Iconia B1-721 | other phones |
| Camera | VGA | |
| Video | Yes | |
| Selfie camera | Acer Iconia B1-721 | other phones |
| Camera | No | |
| Connectivity | Acer Iconia B1-721 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | |
| 3G Network | HSDPA | |
| Bluetooth | Yes | |
| EDGE | Yes | |
| GPRS | Yes | |
| GPS | Yes | |
| NFC | No | |
| Speed | HSPA | |
| Technology | GSM / HSPA | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 b/g/n | |
| Multimedia | Acer Iconia B1-721 | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | No | |
| Battery | Acer Iconia B1-721 | other phones |
| Type | Li-Po 2955 mAh, non-removable | |
| Design | Acer Iconia B1-721 | other phones |
| Colors | Black/Red | |
| Dimensions | 199 x 122.3 x 11.4 mm (7.83 x 4.81 x 0.45 in) | |
| Weight | 323 g (11.39 oz) | |
| SIM | Yes | |
| Features | Acer Iconia B1-721 | other phones |
| Sensors | Accelerometer | |
