| Hardware and OS | Asus Zenfone 4 | |
| Operating system | Android 4.3 (Jelly Bean), upgradable to 4.4.2 (KitKat) | |
| Processor | Dual-core 1.2 GHz | |
| Chipset | Intel Atom Z2520 | |
| GPU | PowerVR SGX544MP2 | |
| Internal memory | 4/8 GB, 1 GB RAM | |
| External memory | microSD, up to 64 GB (dedicated slot) | |
| Display | Asus Zenfone 4 | other phones |
| Type | TFT | |
| Size | 4" inc | |
| Resolution | 480 x 800 px | |
| Protection | Corning Gorilla Glass 3 | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 59.6% | |
| Display area | 45.5 cm2 | |
| Display aspect ratio | 5:3 (height:width) | |
| Pixel Density | 233 PPI | |
| Colors | 16M | |
| Connectivity | Asus Zenfone 4 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | |
| 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 | 4.0, A2DP, EDR | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS | |
| Speed | HSPA 42.2/5.76 Mbps | |
| USB | microUSB 2.0 | |
| Camera | Asus Zenfone 4 | other phones |
| Main camera | 5 MP, Single | |
| Specs | 5 MP, AF | |
| Video | 1080p@30fps | |
| Selfie camera | 0.3 MP, Single | |
| Multimedia | Asus Zenfone 4 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | No | |
| Design | Asus Zenfone 4 | other phones |
| Colors | Charcoal Black, Pearl White, Cherry Red, Sky Blue, Solar Yellow | |
| Dimensions | 124.4 x 61.4 x 6.3-11.2 mm | |
| Weight | 115 g | |
| Battery | Asus Zenfone 4 | other phones |
| Battery capacity | 1200 mAh, Removable Li-Po | |
| Battery life | Stand by time- Up to 192 h
Talking time- Up to 10 h
| |
| Other | Asus Zenfone 4 | other phones |
| SAR | SAR - 1.18 W/kg (head),
SAR EU - 0.53 W/kg (head) | |
| Release date | 2014, January | |
| Sensors | Accelerometer, proximity | |
