| UMiDIGI A3 Max |
Oppo A3s |
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| Hardware and OS | UMiDIGI A3 Max | Oppo A3s |
| Operating system | Android 8.1 (Oreo) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (4x2.0 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Mediatek MT6763V Helio P23 (16 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Mali-G71 GPU | Adreno 506 |
| RAM | 6 GB | |
| Internal memory | 16 GB, 2 GB RAM | |
| Memory Card Slot | Yes, up to 128 GB via microSD card (uses dedicated slot) | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Display | UMiDIGI A3 Max | Oppo A3s |
| Type | IPS LCD capacitive touchscreen, 16M colors | IPS LCD |
| Size | 6.3 inches, 99.1 cm2 (~83.6% screen-to-body ratio) | 6.2" inc |
| Resolution | 720 x 1520 pixels, 19:9 ratio | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 81.2% | |
| Display area | 95.9 cm2 | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 271 PPI | |
| Colors | 16M | |
| Connectivity | UMiDIGI A3 Max | Oppo A3s |
| Technology | GSM / CDMA / HSPA / EVO / LTE | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 & TD-SCDMA | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO | HSDPA 850 / 900 / 2100 |
| NFC | No | |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | LTE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | Bluetooth 4.2 | 4.2, A2DP, LE |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes | Yes, with A-GPS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat16 1024/150 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | Micro USB Type-C 1.0 reversible connector | microUSB 2.0, USB On-The-Go |
| Camera | UMiDIGI A3 Max | Oppo A3s |
| Camera Features | Geo-tagging, touch focus, PDAF, HDR, f/2.0 aperture | |
| Camera Type | Double Lenses | |
| Video Recording | 1080p@30fps, 720p@30fps | |
| Video Resolution | 720p | |
| Main camera | 16 5 megapixel 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 | 20-megapixel | 8 MP, Single |
| Multimedia | UMiDIGI A3 Max | Oppo A3s |
| Headphone jack | Yes, 3.5mm audio jack | |
| FM Radio | Yes | |
| Loudspeaker | Yes | |
| Sound Enhancements | Active Noise Cancelation with a dedicated mic - NxP Box Audio enhanced | |
| Speaker Location | Chin, below display | |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | UMiDIGI A3 Max | Oppo A3s |
| Body build | Front/back glass, aluminum frame | |
| SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Colors | Red, Dark Purple | |
| Dimensions | 156.8 x 75.6 x 8.4 mm (6.17 x 2.98 x 0.33 in) | 156.2 x 75.6 x 8.2 mm |
| Weight | 205 g (7.23 oz) | 168 g |
| Battery | UMiDIGI A3 Max | Oppo A3s |
| Capacity | Non-removable Li-Polymer 4150 mAh battery | |
| Fast Charging | Yes, 18W fast charging | |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Wireless Charging | Yes, 15W wireless charger | |
| Music Play time | Up to 52 hours | |
| Standby time | Up to 400 hours | |
| TalkTime | Up to 29 hours | |
| Other | UMiDIGI A3 Max | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass | |
| Other features | UMiDIGI A3 Max | Oppo A3s |
| Colors | Twilight Color, Carbon Fiber | |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
