| Hardware and OS | HTC A12 | |
| Operating system | Android 4.4.4 (KitKat); Sense UI | |
| Processor | Quad-core 1.2 GHz Cortex-A53 | |
| Chipset | Qualcomm MSM8916 Snapdragon 410 (28 nm) | |
| Internal memory | 8GB 1GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| GPU | Adreno 306 | |
| Display | HTC A12 | other phones |
| Size | 4.7 inches, 60.9 cm2 | |
| Resolution | 720 x 1280 pixels, 16:9 ratio | |
| Type | Capacitive touchscreen, 16M colors | |
| Main Camera | HTC A12 | other phones |
| Camera | 8 MP, AF | |
| Features | LED flash, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | HTC A12 | other phones |
| Camera | 1.3 MP | |
| Connectivity | HTC A12 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE (unspecified) | |
| Bluetooth | 4.0, A2DP, aptX | |
| GPS | Yes, with A-GPS, GLONASS | |
| Speed | HSPA, LTE | |
| Technology | GSM / HSPA / LTE | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 b/g/n, hotspot | |
| Multimedia | HTC A12 | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | FM radio | |
| Battery | HTC A12 | other phones |
| Capacity | Removable Li-Po 2100 mAh battery | |
| Design | HTC A12 | other phones |
| Colors | Black | |
| Dimensions | 139.8 x 69.5 x 9.5 mm (5.50 x 2.74 x 0.37 in) | |
| Weight | - | |
| SIM | Dual SIM (Micro-SIM, dual stand-by) | |
| Features | HTC A12 | other phones |
| Sensors | Accelerometer, proximity | |