I Kall S1 vs Nubia Z60 Ultra
| Type | Touch | Touch |
| Waterproofness & dust-resistance | IP68 | |
| Dimensions | - | 163.98 x 76.35 x 8.78 mm |
| Weight | 218.00 g | |
| Display size | 6.80" | 6.80" |
| Display | Color / IPS TFT 16,7M colors 720 x 1640 px (6.80") 263 ppi | Color / AMOLED 1,07G colors 120 Hz 1116 x 2480 px (6.80") 400 ppi |
| Display protection | ||
| Additional display | ||
| Protection of the secondary display | ||
| Standard battery | Li-Ion 6000 mAhBuy powerbank
| Li-Po 6000 mAhBuy powerbank
|
| Quick battery charging | ||
| Wireless battery charging | ||
| Internal memory | 128 GB | 256 GB, 512 GB, 1000 GB |
| RAM memory | 6 GB | 12 GB, 16 GB, 24 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 512 GBBuy memory card | |
| Operating system | Android 13 | Android 14 |
| Interface | - | MyOS 14 |
| Processor | Unisoc Tiger T606 UMS9230 T7200 | Qualcomm Snapdragon 8 Gen 3 SM8650 |
| Processor clock | 1600 MHz | 3300 MHz |
| GPU | Mali-G57 MP1 @650 MHz | Adreno 750 |
| Touchscreen | ||
| DualSIM | ||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | ||
| Announced | 4Q 2023 | |
| Other names | - | NX721J |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | ||
| Standard 5G | ||
| CDMA | ||
| Standard TD-SCDMA | ||
| UMA |

