CAT S30 vs CAT S31 Dual SIM
| Type | Touch | Touch | Touch | Flip | 
| Waterproofness & dust-resistance | IP68 | IP68 | IP68 | IP68 | 
| Dimensions | 141.90 x 72.74 x 13.25 mm | 146.00 x 74.42 x 12.60 mm | - | 120.00 x 61.00 x 24.80 mm | 
| Weight | 181.00 g | 200.00 g | 180.00 g | |
| Display size | 4.50" | 4.70" | 5.50" | 2.80" | 
| Display | Color / IPS TFT 16M colors 480 x 854 px (4.50") 218 ppi  | Color / IPS TFT 16M colors 720 x 1280 px (4.70") 312 ppi  | Color / IPS TFT 16M colors 720 x 1440 px (5.50") 293 ppi  | Color / TFT 16M colors 480 x 640 px (2.80") 286 ppi  | 		
| Display protection | Corning Gorilla Glass Buy screen protector
					 | Corning Gorilla Glass Buy screen protector
					 | Asahi Dragontrail Buy screen protector
					 | Corning Gorilla Glass Buy screen protector
					 | 		
| Additional display | Mono / LCD 128 x 128 px (1.44")  | 		|||
| Protection of the secondary display | ||||
| Talk time (max.) | 2G: 1080 min. (18.0 h) | 2G: 1080 min. (18.0 h) | ||
| Stand-by (max.) | 2G: 936 h. (39.0 days) | 2G: 936 h. (39.0 days) | ||
| Standard battery | Li-Ion 3000 mAhBuy powerbank
					 | Li-Ion 4000 mAhBuy powerbank
					 | Li-Ion 4200 mAhBuy powerbank
					 | Li-Ion 2000 mAhBuy powerbank
					 | 		
| Quick battery charging | Fast Charging | |||
| Wireless battery charging | ||||
| Internal memory | 8 GB | 16 GB | 32 GB | 16 GB | 
| RAM memory | 1 GB | 2 GB | 3 GB | 2 GB | 
| Memory cards | microSD, microSDHC, microSDXC up to 64 GBBuy memory card  | microSD, microSDHC, microSDXC up to 128 GBBuy memory card  | microSD, microSDHC, microSDXC up to 128 GBBuy memory card  | microSD, microSDHC, microSDXC up to 128 GBBuy memory card  | 		
| Operating system | Android 5.1 Lollipop | Android 7.0 Nougat | Android 10 | Android 11 Go | 
| Processor | Qualcomm Snapdragon 210 MSM8909 | Qualcomm Snapdragon 210 MSM8909 | MediaTek | Qualcomm 215 | 
| Processor clock | 1100 MHz | 1300 MHz | 1800 MHz | 1300 MHz | 
| GPU | Adreno 304 | Adreno 304 | - | Adreno 308 | 
| Touchscreen | ||||
| SAR (10g) | 1,152 W/kg | |||
| DualSIM | ||||
| SIM cards standard | SingleSIM(nanoSIM) | DualSIM(nanoSIM, nanoSIM) | SingleSIM(nanoSIM) | SingleSIM(nanoSIM) | 
| DualSIM mode | nd | dual standby | nd | nd | 
| Announced | 3Q 2015 | 3Q 2017 | 1Q 2020 | 3Q 2021 | 
| Other names | - | - | - | - | 
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 | 
| UMTS | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 | 
| LTE standard | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 | FDD LTE: 2600, 2100, 1900, 1800, 900, 850, 800 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 850, 800, 700, 600 TDD LTE: 2600, 2500, 2300, 1900  | 		
| Standard 5G | ||||
| CDMA | ||||
| Standard TD-SCDMA | ||||
| UMA | 



