| Cat B35 |
Oppo A3s |
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| Hardware and OS | Cat B35 | Oppo A3s |
| Operating system | KaiOS | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Dual-core (2x1.3 GHz Cortex-A7) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm MSM8905 Snapdragon 205 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 304 | Adreno 506 |
| Internal memory | 4GB 512MB RAM | 16 GB, 2 GB RAM |
| External memory | microSDXC (uses shared SIM slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Cat B35 | Oppo A3s |
| Type | TFT | IPS LCD |
| Size | 2.4 inches, 17.8 cm2 | 6.2" inc |
| Resolution | 240 x 320 pixels, 4:3 ratio | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | |
| Protection | Scratch-proof glass | |
| Screen-to-Body Ratio | 81.2% | |
| Display area | 95.9 cm2 | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 271 PPI | |
| Colors | 16M | |
| Main Camera | Cat B35 | Oppo A3s |
| Camera | 2 MP | |
| Features | LED flash | |
| Video | 480p@30fps | |
| Selfie camera | Cat B35 | Oppo A3s |
| Camera | No | |
| Connectivity | Cat B35 | 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 / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) | LTE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 4.1, A2DP, LE | 4.2, A2DP, LE |
| Edge | Yes | |
| Technology | GSM / HSPA / LTE | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
| WLAN | Wi-Fi 802.11 b/g/n | |
| Speed | HSPA, LTE Cat4 150/50 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 | Cat B35 | Oppo A3s |
| Main camera | 13 MP, Dual | |
| Specs | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | 8 MP, Single | |
| Multimedia | Cat B35 | Oppo A3s |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Design | Cat B35 | Oppo A3s |
| Body | IP68 dust/water resistant (up to 1.2m for 35 mins) MIL-STD-810G compliant Drop-to-concrete resistance from up to 1.8m Flashlight | |
| Colors | Black | Red, Dark Purple |
| SIM | Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Dimensions | 138 x 60 x 14 mm (5.43 x 2.36 x 0.55 in) | 156.2 x 75.6 x 8.2 mm |
| Weight | 130 g (4.59 oz) | 168 g |
| Features | Cat B35 | Oppo A3s |
| Sensors | Accelerometer | |
| Battery | Cat B35 | Oppo A3s |
| Capacity | Non-removable Li-Ion 2300 mAh battery | |
| Stand-by | Up to 720 h (3G) | |
| Talk time | Up to 12 h (3G) | |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Other | Cat B35 | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass |
