| I Kall Z1 Premium |
vivo Y11 |
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| Hardware and OS | I Kall Z1 Premium | vivo Y11 |
| Operating System | Android v8.1 (Oreo) | Android 4.4.4 (KitKat) |
| Processor | Quad core, 1.3 GHz | Quad-core 1.3 GHz Cortex-A7 |
| RAM | 4 GB | |
| Chipset | Mediatek MT6582М | |
| GPU | Mali-400MP2 | |
| Internal memory | 4 GB, 512 MB RAM | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Display | I Kall Z1 Premium | vivo Y11 |
| Size | 5.45 inches (13.84 cm) | 4" inc |
| Resolution | 480 x 960 pixels | 480 x 800 px |
| Type | TFT | IPS LCD |
| Pixel Density | 197 ppi | 233 PPI |
| Touch Screen | Yes, Capacitive Touchscreen, Multi-touch | |
| Bezel-less display | Yes | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 59.2% | |
| Display area | 45.5 cm2 | |
| Display aspect ratio | 5:3 (height:width) | |
| Colors | 16M | |
| Storage | I Kall Z1 Premium | vivo Y11 |
| Internal Memory | 32 GB | |
| Expandable Memory | Yes, Up to 64 GB | |
| Connectivity | I Kall Z1 Premium | vivo Y11 |
| Network Support | 4G , 3G, 2G | |
| Bluetooth | Yes | 4.0, A2DP, EDR |
| GPS | Yes with A-GPS | Yes, with A-GPS |
| SIM 1 | 4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| SIM 2 | 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Network | GSM / HSPA | |
| VoLTE | Yes | |
| SIM card | Dual SIM (Micro-SIM, dual stand-by) | |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Wi-Fi Features | Mobile Hotspot | |
| Edge | Yes | |
| GPRS | Yes | |
| Speed | HSPA 21.1/7.2 Mbps | |
| USB | microUSB 2.0, USB Host | |
| Main camera | I Kall Z1 Premium | vivo Y11 |
| Resolution | 8 MP, Primary Camera | |
| Image Resolution | 3264 x 2448 Pixels | |
| Camera Setup | Single | |
| Flash | Yes, Dual LED Flash | |
| Camera Features | Digital Zoom | |
| Camera | I Kall Z1 Premium | vivo Y11 |
| Main camera | 5 MP, Single | |
| Specs | 5 MP, AF | |
| Features | LED flash | |
| Video | 1080p@30fps | |
| Selfie camera | 2 MP, Single | |
| Selfie camera | I Kall Z1 Premium | vivo Y11 |
| Resolution | 5 MP, Primary Camera | |
| Camera Setup | Single | |
| Multimedia | I Kall Z1 Premium | vivo Y11 |
| Audio Jack | 3.5 mm | |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Battery | I Kall Z1 Premium | vivo Y11 |
| Capacity | 3000 mAh | |
| Type | Li-ion | |
| Removable | Yes | |
| Battery capacity | 1700 mAh, Removable Li-Po | |
| Battery life | Talking time- Up to 11 h (2G) / Up to 8 h (3G) Music play - Up to 34 h | |
| Design | I Kall Z1 Premium | vivo Y11 |
| Colors | White, Black | |
| Dimensions | 123 x 62.5 x 8.8 mm | |
| Weight | 124 g | |
| Sensors | I Kall Z1 Premium | vivo Y11 |
| Fingerprint Sensor | No | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer | |
| Other | I Kall Z1 Premium | vivo Y11 |
| Release date | 2014, Q4 | |
| Sensors | Accelerometer, proximity , Infrared port |
