On this page we compare specs BLU Studio J2 Dual-core 1.3 GHz Cortex-A7 with Oppo A3s Octa-core 1.8 GHz Cortex-A53, we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
| Hardware and OS | BLU Studio J2 | Oppo A3s |
|---|
| Operating system | Android 6.0 (Marshmallow) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Dual-core 1.3 GHz Cortex-A7 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Mediatek MT6570 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Mali-400 | Adreno 506 |
| Internal memory | 8 GB, 512 MB RAM | 16 GB, 2 GB RAM |
| External memory | microSD, up to 64 GB | microSD, up to 256 GB (dedicated slot) |
| Display | BLU Studio J2 | Oppo A3s |
|---|
| Type | IPS LCD | IPS LCD |
| Size | 5" inc | 6.2" inc |
| Resolution | 480 x 854 px | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 65.2% | 81.2% |
| Display area | 68.9 cm2 | 95.9 cm2 |
| Display aspect ratio | 16:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 196 PPI | 271 PPI |
| Colors | 16M | 16M |
| Connectivity | BLU Studio J2 | Oppo A3s |
|---|
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| Wi-Fi | Wi-Fi 802.11 b/g/n, 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 | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS | Yes, with A-GPS |
| 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 | BLU Studio J2 | Oppo A3s |
|---|
| Main camera | 5 MP, Single | 13 MP, Dual |
| Specs | 5 MP | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | LED flash | LED flash, HDR, panorama |
| Video | 720p@30fps | 1080p@30fps |
| Selfie camera | 2 MP, Single | 8 MP, Single |
| Multimedia | BLU Studio J2 | Oppo A3s |
|---|
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | BLU Studio J2 | Oppo A3s |
|---|
| Colors | Black, Gold, Rose Gold | Red, Dark Purple |
| Dimensions | 144.9 x 72.9 x 10.4 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 143 g | 168 g |
| Battery | BLU Studio J2 | Oppo A3s |
|---|
| Battery capacity | 2000 mAh, Removable Li-Po | 4230 mAh, Non-removable Li-Ion |
| Battery life | Stand by time- Up to 650 h (2G) / Up to 550 h (3G)
Talking time- Up to 24 h (2G) / Up to 12 h (3G)
| |
| Other | BLU Studio J2 | Oppo A3s |
|---|
| Release date | 2017, May | 2018, July |
| Sensors | Accelerometer | Accelerometer, proximity, compass |
