vivo Y28 |
Oppo A5s (AX5s) |
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Hardware and OS | vivo Y28 | Oppo A5s (AX5s) |
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Operating system | Android 4.2.2 (Jelly Bean) | Android 8.1 (Oreo); ColorOS 5.2 |
Processor | Quad-core 1.3 GHz Cortex-A7 | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) |
Chipset | Mediatek MT6582 (28 nm) | Mediatek MT6765 Helio P35 (12nm) |
GPU | Mali-400MP2 | PowerVR GE8320 |
Internal memory | 8 GB, 1 GB RAM | 32/64 GB, 2/3/4 GB RAM |
External memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
Display | vivo Y28 | Oppo A5s (AX5s) |
Type | IPS LCD | S-IPS LCD |
Size | 4.7" inc | 6.2" inc |
Resolution | 540 x 960 px | 720 x 1520 px |
Protection | Corning Gorilla Glass 3 | |
Touchscreen | capacitive touchscreen | capacitive touchscreen |
Screen-to-Body Ratio | 68.1% | 81.6% |
Display area | 64.2 cm2 | 95.9 cm2 |
Display aspect ratio | 16:10 (height:width) | 19:9 (height:width) |
Pixel Density | 216 PPI | 271 PPI |
Colors | 16M | 16M |
Connectivity | vivo Y28 | Oppo A5s (AX5s) |
2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
4G Network | LTE | |
Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
Network | GSM / HSPA | GSM / HSPA / LTE |
SIM card | Micro-SIM | 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 | Yes, with A-GPS, GLONASS, GALILEO, BDS |
Speed | HSPA 21.1/5.76 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 | vivo Y28 | Oppo A5s (AX5s) |
Main camera | 8 MP, Single | 13 MP, Dual |
Specs | 8 MP, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
Features | LED flash | LED flash, HDR, panorama |
Video | 1080p@30fps | 1080p@30fps |
Selfie camera | 5 MP, Single | 8 MP, Single |
Multimedia | vivo Y28 | Oppo A5s (AX5s) |
3.5 mm Jack | Yes | Yes |
Radio | FM radio | FM radio |
Design | vivo Y28 | Oppo A5s (AX5s) |
Colors | White | Red, Black, Gold, Green |
Dimensions | 137.4 x 68.6 x 9.8 mm | 155.9 x 75.4 x 8.2 mm |
Weight | 156 g | 170 g |
Battery | vivo Y28 | Oppo A5s (AX5s) |
Battery life | Stand by time- Up to 430 h (2G) / Up to 430 h (3G) Talking time- Up to 14 h (2G) / Up to 13 h (3G) Music play - Up to 32 h | |
Battery capacity | 2100 mAh, Removable Li-Po | 4230 mAh, Non-removable Li-Ion |
Other | vivo Y28 | Oppo A5s (AX5s) |
Release date | 2014, December | 2019, March |
Sensors | Accelerometer, proximity, compass , Infrared port | Fingerprint (rear-mounted), accelerometer, proximity, compass |