| Hardware and OS | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| Operating system | Android 8.1 (Oreo); MIUI 9.5 | Android 8.1 (Oreo); ColorOS 5.2 |
| Processor | Octa-core 1.8 GHz Kryo 260 | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) |
| Chipset | Qualcomm SDM636 Snapdragon 636 (14 nm) | Mediatek MT6765 Helio P35 (12nm) |
| GPU | Adreno 509 | PowerVR GE8320 |
| Internal memory | 128 GB, 6 GB RAM64 GB, 4 GB RAM | 32/64 GB, 2/3/4 GB RAM |
| External memory | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| Type | IPS LCD | S-IPS LCD |
| Size | 6.9" inc | 6.2" inc |
| Resolution | 1080 x 2160 px | 720 x 1520 px |
| Protection | | Corning Gorilla Glass 3 |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 79.8% | 81.6% |
| Display area | 122.9 cm2 | 95.9 cm2 |
| Display aspect ratio | 18:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 350 PPI | 271 PPI |
| Colors | 16M | 16M |
| Connectivity | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| 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 / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | LTE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | GSM / CDMA / HSPA / EVDO / LTE | GSM / HSPA / LTE |
| SIM card | Hybrid Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 5.0, A2DP, LE | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Speed | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | Type-C 1.0 reversible connector | microUSB 2.0, USB On-The-Go |
| Camera | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| Main camera | 12 MP, Dual | 13 MP, Dual |
| Specs | 12 MP, f/1.9, 1/2.55', 1.4µm, dual pixel PDAF
-5 MP, depth sensor | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | Dual-LED flash, HDR, panorama | LED flash, HDR, panorama |
| Video | 2160p@30fps, 720p/1080p@30fps (gyro-EIS), 720p@120fps | 1080p@30fps |
| Selfie camera | 8 MP, Single | 8 MP, Single |
| Multimedia | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Design | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| Colors | Black, Champagne Gold, Blue | Red, Black, Gold, Green |
| Body build | Front glass, aluminum body | |
| Dimensions | 176.2 x 87.4 x 8 mm | 155.9 x 75.4 x 8.2 mm |
| Weight | 221 g | 170 g |
| Battery | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| Battery capacity | 5500 mAh, Non-removable Li-Ion | 4230 mAh, Non-removable Li-Ion |
| Other | Xiaomi Mi Max 3 | Oppo A5s (AX5s) |
| Release date | 2018, July | 2019, March |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port | Fingerprint (rear-mounted), accelerometer, proximity, compass |
