| General | |
| Manufacturer: | Nokia |
| Model: | 603 |
| Year: | 2011 |
| Operating system: | Nokia Belle |
| Capacity battery (MAh): | 1300 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
57.1 x 113.5 x 12.7 |
| Weight (g): | 109.6 |
| Processor | |
| Processor Type: | ARM1136JF-S |
| Clock Frequency (MHz): | 1000 |
| Memory | |
| Random access memory (RAM) (MB): | 512 |
| Read-only memory (ROM) (MB): | 1024 |
| Read-only memory (ROM) (GB): | 2 |
| Communications | |
| Phone: | GSM 1800, GSM 1900, GSM 850, GSM 900, UMTS 1900, UMTS 2100, UMTS 900 |
| Bluetooth: | 3.0 |
| Wi-Fi: | 802.11b,g,n |
| Other: | EDGE, GPRS, GPS, HSDPA, HSUPA, UMTS/WCDMA |
| Multimedia | |
| Screen Size: | 3.5 |
| Screen Resolution (px): | 360 x 640 |
| Screen type: | IPS |
| Accelerator: | Broadcom BCM2763 |
| Rear camera (Mp): | 5 |
| Front camera (Mp): | No |
| Speaker: | mono |
| Output of earphones: | 3.5 |
| Other: | FM-radio, G-Sensor, Light sensor, Proximity sensor, Digital compass |
| Management and input | |
| Buttons: | touch-sensitive screen (multi-touch), physical buttons |
| Extension | |
| Memory Cards: | microSD, microSDHC |
| Connectors: | microUSB |
| Additionally | |
| Features: | microSIM, NFC, ClearBlack, USB OTG |