Asus Zenfone 4 |
Oppo A3s |
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Hardware and OS | Asus Zenfone 4 | Oppo A3s |
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Operating system | Android 4.3 (Jelly Bean), upgradable to 4.4.2 (KitKat) | Android 8.1 (Oreo); ColorOS 5.1 |
Processor | Dual-core 1.2 GHz | Octa-core 1.8 GHz Cortex-A53 |
Chipset | Intel Atom Z2520 | Qualcomm SDM450 Snapdragon 450 (14 nm) |
GPU | PowerVR SGX544MP2 | Adreno 506 |
Internal memory | 4/8 GB, 1 GB RAM | 16 GB, 2 GB RAM |
External memory | microSD, up to 64 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
Display | Asus Zenfone 4 | Oppo A3s |
Type | TFT | IPS LCD |
Size | 4" inc | 6.2" inc |
Resolution | 480 x 800 px | 720 x 1520 px |
Protection | Corning Gorilla Glass 3 | |
Touchscreen | capacitive touchscreen | capacitive touchscreen |
Screen-to-Body Ratio | 59.6% | 81.2% |
Display area | 45.5 cm2 | 95.9 cm2 |
Display aspect ratio | 5:3 (height:width) | 19:9 (height:width) |
Pixel Density | 233 PPI | 271 PPI |
Colors | 16M | 16M |
Connectivity | Asus Zenfone 4 | Oppo A3s |
2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
3G Network | HSDPA 850 / 900 / 2100 | |
Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
4G Network | LTE | |
Network | GSM / HSPA | GSM / HSPA / LTE |
SIM card | Dual SIM (Micro-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
Bluetooth | 4.0, A2DP, EDR | 4.2, A2DP, LE |
Edge | Yes | Yes |
GPRS | Yes | Yes |
GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
Speed | HSPA 42.2/5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
USB | microUSB 2.0 | microUSB 2.0, USB On-The-Go |
Camera | Asus Zenfone 4 | Oppo A3s |
Main camera | 5 MP, Single | 13 MP, Dual |
Specs | 5 MP, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
Video | 1080p@30fps | 1080p@30fps |
Selfie camera | 0.3 MP, Single | 8 MP, Single |
Features | LED flash, HDR, panorama | |
Multimedia | Asus Zenfone 4 | Oppo A3s |
3.5 mm Jack | Yes | Yes |
Radio | No | FM radio |
Design | Asus Zenfone 4 | Oppo A3s |
Colors | Charcoal Black, Pearl White, Cherry Red, Sky Blue, Solar Yellow | Red, Dark Purple |
Dimensions | 124.4 x 61.4 x 6.3-11.2 mm | 156.2 x 75.6 x 8.2 mm |
Weight | 115 g | 168 g |
Battery | Asus Zenfone 4 | Oppo A3s |
Battery capacity | 1200 mAh, Removable Li-Po | 4230 mAh, Non-removable Li-Ion |
Battery life | Stand by time- Up to 192 h Talking time- Up to 10 h | |
Other | Asus Zenfone 4 | Oppo A3s |
SAR | SAR - 1.18 W/kg (head), SAR EU - 0.53 W/kg (head) | |
Release date | 2014, January | 2018, July |
Sensors | Accelerometer, proximity | Accelerometer, proximity, compass |