| Hardware and OS | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Operating system | Android 4.4.4 (KitKat), upgradable to 6.0.1 (Marshmallow) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Quad-core 2.7 GHz Krait 450 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm APQ8084 Snapdragon 805 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 420 | Adreno 506 |
| Internal memory | 32GB 3GB RAM | 16 GB, 2 GB RAM |
| External memory | microSDXC (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Type | Super AMOLED capacitive touchscreen, 16M colors | IPS LCD |
| Size | 5.7 inches, 88.5 cm2 | 6.2" inc |
| Resolution | 1440 x 2560 pixels, 16:9 ratio | 720 x 1520 px |
| Touchscreen | | capacitive touchscreen |
| Protection | Corning Gorilla Glass 4 | |
| 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 | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Camera | 16 MP, f/2.2, 31mm (standard), 1/2.6", 1.12?m, AF, OIS | |
| Features | LED flash, panorama, HDR | |
| Video | 2160p@30fps, 1080p@30/60fps, dual-video rec., stereo sound rec. | |
| Selfie camera | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Camera | 3.7 MP, f/1.9, 22mm (wide) | |
| Features | HDR | |
| Video | 1440p@30fps | |
| Connectivity | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| 2G Network | CDMA 800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | CDMA2000 1xEV-DO | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 2(1900), 4(1700/2100), 5(850), 12(700), 17(700) | 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, EDR, LE | 4.2, A2DP, LE |
| Edge | | Yes |
| CDMA | GSM 850 / 900 / 1800 / 1900 | |
| GPRS | | Yes |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
| Speed | HSPA, LTE-A Cat4 150/50 Mbps, EV-DO Rev.A 3.1 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| Infrared port | Yes | |
| USB | microUSB 2.0 (MHL 3 TV-out), USB On-The-Go | microUSB 2.0, USB On-The-Go |
| NFC | Yes | |
| Technology | GSM / CDMA / HSPA / EVDO / LTE | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Camera | Samsung Galaxy Note 4 (USA) | 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 | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Loudspeaker | Yes | |
| Multimedia | 24-bit/192kHz audio
| |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Colors | Frosted white, Charcoal black, Bronze Gold, Blossom Pink | Red, Dark Purple |
| Dimensions | 153.5 x 78.6 x 8.5 mm (6.04 x 3.09 x 0.33 in) | 156.2 x 75.6 x 8.2 mm |
| Weight | 176 g (6.21 oz) | 168 g |
| Body | Stylus | |
| SIM | Micro-SIM | |
| Battery | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Capacity | Removable Li-Ion 3220 mAh battery | |
| Stand-by | Up to 212 h (3G) | |
| Talk time | Up to 31 h 20 min (3G) | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Release date | | 2018, July |
| Sensors | | Accelerometer, proximity, compass |
| Features | Samsung Galaxy Note 4 (USA) | Oppo A3s |
| Sensors | Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, gesture, UV, heart rate, SpO2 | |
