| Hardware and OS Cat S53 |
| Operating system: | Android 11 |
| Processor: | Octa-core (2x2.0 GHz Kryo 460 & 6x1.8 GHz Kryo 460) |
| Chipset: | Qualcomm SM4350 Snapdragon 480 5G (8 nm) |
| GPU: | Adreno 619 |
| Internal memory: | 128GB 6GB RAM |
| External memory: | microSDXC (uses shared SIM slot) |
| Display Cat S53 |
| Type: | IPS LCD |
| Size: | 6.5 inches, 102.0 cm2 (~73.6% screen-to-body ratio) |
| Resolution: | 720 x 1600 pixels, 20:9 ratio |
| Connectivity Cat S53 |
| 2G Network: | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network: | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network: | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66 |
| 5G Network: | 1, 2, 3, 5, 7, 8, 28, 41, 66, 77, 78 |
| WLAN: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot |
| Bluetooth: | 5.1, A2DP, LE |
| GPS: | Yes, with A-GPS |
| NFC: | Yes |
| USB: | USB Type-C 3.0, USB On-The-Go |
| Speed: | HSPA, LTE |
| Technology: | GSM / HSPA / LTE / 5G |
| Main Camera Cat S53 |
| Camera: | 48 MP, f/1.8, (wide)
2 MP, (macro) |
| Features: | LED flash |
| Video: | 1080p@30fps |
| Selfie camera Cat S53 |
| Camera: | 16 MP, f/2.0 |
| Video: | 1080p@30fps |
| Multimedia Cat S53 |
| 3.5 mm Jack: | Yes |
| Loudspeaker: | Yes |
| Battery Cat S53 |
| Type: | Li-Po 5500 mAh, non-removable |
| Charging: | Wireless charging |
| Design Cat S53 |
| Body: | IP68/IP69K dust/water resistant (up to 1.5m for 35 mins)
Drop-to-concrete resistance from up to 1.8m
MIL-STD-810H compliant
Dedicated flashlight |
| SIM: | Hybrid Dual SIM (Nano-SIM, dual stand-by) |
| Weight: | 320 g (11.29 oz) |
| Dimensions: | 171 x 81 x 16 mm (6.73 x 3.19 x 0.63 in) |
| Colors: | Black |
| Features Cat S53 |
| Sensors: | Fingerprint (rear-mounted), accelerometer |