| Hardware and OS | Motorola Moto Z4 | Oppo A3s |
| Operating system | Android 9.0 (Pie) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm SDM675 Snapdragon 675 (11 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 612 | Adreno 506 |
| Internal memory | 128 GB, 4 GB RAM | 16 GB, 2 GB RAM |
| External memory | microSD, up to 1 TB (uses shared SIM slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Motorola Moto Z4 | Oppo A3s |
| Type | OLED | IPS LCD |
| Size | 6.4" inc | 6.2" inc |
| Resolution | 1080 x 2340 px | 720 x 1520 px |
| Protection | Corning Gorilla Glass 3 | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 84.8% | 81.2% |
| Display area | 100.5 cm2 | 95.9 cm2 |
| Display aspect ratio | 19.5:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 403 PPI | 271 PPI |
| Colors | 16M | 16M |
| Connectivity | Motorola Moto Z4 | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 - USA | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 13(700), 20(800), 28(700), 66(1700/2100) - USA | LTE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | GSM / CDMA / HSPA / LTE | GSM / HSPA / LTE |
| SIM card | Single SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 5.0, A2DP, LE, EDR | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS, GLONASS, GALILEO | Yes, with A-GPS |
| NFC | Yes | |
| Speed | HSPA, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | 3.1, Type-C 1.0 reversible connector, magnetic connector, USB On-The-Go | microUSB 2.0, USB On-The-Go |
| Camera | Motorola Moto Z4 | Oppo A3s |
| Main camera | 48 MP, Single | 13 MP, Dual |
| Specs | 48 MP, f/1.7, (wide), 1/2', 0.8µm, PDAF, OIS | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | Dual-LED dual-tone flash, panorama, HDR | LED flash, HDR, panorama |
| Video | 2160p@30fps, 1080p@30/60fps | 1080p@30fps |
| Selfie camera | 25 MP, Single | 8 MP, Single |
| Multimedia | Motorola Moto Z4 | Oppo A3s |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Design | Motorola Moto Z4 | Oppo A3s |
| Colors | Flash Grey, Frost White | Red, Dark Purple |
| Dimensions | 158 x 75 x 7.4 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 165 g | 168 g |
| Body build | Front/back glass, aluminum frame | |
| Battery | Motorola Moto Z4 | Oppo A3s |
| Battery capacity | 3600 mAh, Non-removable Li-Ion | 4230 mAh, Non-removable Li-Ion |
| Other | Motorola Moto Z4 | Oppo A3s |
| Release date | 2019, May | 2018, July |
| Sensors | Fingerprint (under display), accelerometer, gyro, proximity, compass | Accelerometer, proximity, compass |
