| Hardware and OS | Samsung Galaxy A03 | |
| Operating system | Android 11 | |
| Processor | Octa-core (2x1.6 GHz & 6x1.6 GHz) | |
| Internal memory | 32GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM | |
| External memory | microSDXC | |
| Display | Samsung Galaxy A03 | other phones |
| Type | PLS IPS | |
| Size | 6.5 inches, 102.0 cm2(~81.8% screen-to-body ratio) | |
| Resolution | 720 x 1600 pixels, 20:9 ratio | |
| Colors | Black, Blue, Red | |
| Design | Samsung Galaxy A03 | other phones |
| Body build | Glass front, plastic back, plastic frame | |
| SIM | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) | |
| Dimensions | 164.2 x 75.9 x 9.1 mm (6.46 x 2.99 x 0.36 in) | |
| Weight | - | |
| Connectivity | Samsung Galaxy A03 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE (unspecified) | |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | |
| Bluetooth | 5.1, A2DP, LE | |
| GPS | Yes, with A-GPS | |
| NFC | No | |
| USB | microUSB 2.0 | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | |
| Technology | GSM / HSPA / LTE | |
| Main Camera | Samsung Galaxy A03 | other phones |
| Camera | 48 MP, f/1.8, (wide), AF
2 MP, f/2.4, (depth) | |
| Features | LED flash | |
| Video | 1080p@30fps | |
| Selfie camera | Samsung Galaxy A03 | other phones |
| Camera | 5 MP, f/2.2 | |
| Multimedia | Samsung Galaxy A03 | other phones |
| Radio | Unspecified | |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Features | Samsung Galaxy A03 | other phones |
| Sensors | Accelerometer | |
| Battery | Samsung Galaxy A03 | other phones |
| Type | Li-Po 5000 mAh, non-removable | |
