Comparison between:
- VKworld VK2015
- VKworld VK6735
- VKworld VK6050S
- VKworld Discovery S1
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| VKworld VK2015 | VKworld VK6735 | VKworld VK6050S | VKworld Discovery S1 | |
 |  |  |  |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 66.3 mm 6.63 cm 0.218 ft 2.61 in | 72 mm 7.2 cm 0.236 ft 2.835 in | 78 mm 7.8 cm 0.256 ft 3.071 in | 76 mm 7.6 cm 0.249 ft 2.992 in |
| Height | 131 mm 13.1 cm 0.43 ft 5.157 in | 143 mm 14.3 cm 0.469 ft 5.63 in | 148 mm 14.8 cm 0.486 ft 5.827 in | 153 mm 15.3 cm 0.502 ft 6.024 in |
| Thickness | 7.6 mm 0.76 cm 0.025 ft 0.299 in | 7.2 mm 0.72 cm 0.024 ft 0.283 in | 9.5 mm 0.95 cm 0.031 ft 0.374 in | 7.6 mm 0.76 cm 0.025 ft 0.299 in |
| Weight | 116 g 0.26 lbs 4.09 oz | 158 g 0.35 lbs 5.57 oz | 184 g 0.41 lbs 6.49 oz | 170 g 0.37 lbs 6 oz |
| Volume | 66.01 cm³ 4.01 in³ | 74.13 cm³ 4.5 in³ | 109.67 cm³ 6.66 in³ | 88.37 cm³ 5.37 in³ |
| Colors | Black White | Black White Yellow Red | Black White | Black Rose-gold White Gray Gold |
| Body materials | Plastic | Plastic | Plastic | - |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Mini-SIM Micro-SIM | Mini-SIM Micro-SIM | Micro-SIM Mini-SIM | Micro-SIM |
| Number of SIM cards | 2 | 2 | 2 | 2 |
| Features | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| W-CDMA | W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz |
| LTE | - | LTE 800 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz | LTE 800 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz | LTE 800 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz |
Mobile network technologies and bandwidth
Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.
| Mobile network technologies | UMTS EDGE GPRS HSPA+ | UMTS EDGE GPRS Class 12 HSPA+ LTE Cat 4 | UMTS EDGE Class 12 GPRS Class 12 HSPA+ LTE Cat 4 | UMTS EDGE Class 12 GPRS Class 12 HSPA+ LTE Cat 4 |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Android 5.0 Lollipop | Android 5.1 Lollipop | Android 5.1 Lollipop | Android 5.1 Lollipop |
System on Chip (SoC)
A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.
| SoC | MediaTek MT6582 | MediaTek MT6735M | MediaTek MT6735M | MediaTek MT6735M |
| Process technology | 28 nm | 28 nm | 28 nm | 28 nm |
| CPU | 4x 1.3 GHz ARM Cortex-A7 | 4x 1.0 GHz ARM Cortex-A53 | 4x 1.0 GHz ARM Cortex-A53 | 4x 1.0 GHz ARM Cortex-A53 |
| CPU bits | 32 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv7-A | ARMv8-A | ARMv8-A | ARMv8-A |
| Level 1 cache memory (L1) | 32 KB + 32 KB | 32 KB + 32 KB | 32 KB + 32 KB | 32 KB + 32 KB |
| Level 2 cache memory (L2) | 512 KB 0.5 MB | 512 KB 0.5 MB | 512 KB 0.5 MB | 512 KB 0.5 MB |
| CPU cores | 4 | 4 | 4 | 4 |
| CPU frequency | 1300 MHz | 1000 MHz | 1000 MHz | 1000 MHz |
| GPU | ARM Mali-400 MP2 | ARM Mali-T720 MP2 | ARM Mali-T720 MP2 | ARM Mali-T720 MP2 |
| GPU cores | 2 | 2 | 2 | 2 |
| GPU frequency | 500 MHz | 500 MHz | 500 MHz | 500 MHz |
| RAM capacity | 1 GB | 2 GB | 2 GB | 2 GB |
| RAM type | LPDDR2/LPDDR3 | LPDDR3 | LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Single channel | Single channel | Single channel |
| RAM frequency | 533 MHz | 533 MHz | 533 MHz | 533 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 8 GB | 16 GB | 16 GB | 16 GB |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC | microSD microSDHC microSDXC | microSD microSDHC microSDXC | microSD microSDHC |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | IPS | IPS | IPS | IPS |
| Diagonal size | 4.5 in 114.3 mm 11.43 cm | 5 in 127 mm 12.7 cm | 5.5 in 139.7 mm 13.97 cm | 5.5 in 139.7 mm 13.97 cm |
| Width | 2.21 in 56.04 mm 5.6 cm | 2.45 in 62.26 mm 6.23 cm | 2.7 in 68.49 mm 6.85 cm | 2.7 in 68.49 mm 6.85 cm |
| Height | 3.92 in 99.62 mm 9.96 cm | 4.36 in 110.69 mm 11.07 cm | 4.79 in 121.76 mm 12.18 cm | 4.79 in 121.76 mm 12.18 cm |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 540 x 960 pixels | 720 x 1280 pixels | 720 x 1280 pixels | 720 x 1280 pixels |
| Pixel density | 245 ppi 96 ppcm | 294 ppi 115 ppcm | 267 ppi 104 ppcm | 267 ppi 104 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 64.48 % | 67.15 % | 72.47 % | 71.95 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant |
| - | OGS (One Glass Solution) Full Lamination Technology | OGS (One Glass Solution) Full Lamination Technology | Corning Gorilla Glass 3 OGS (One Glass Solution) 3D - Parallax barrier (Glasses-free) |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer | Proximity Light Accelerometer | Proximity Light Accelerometer | Proximity Light Accelerometer |
Main rear camera
The main camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor model | - | Sony Exmor RS | OmniVision | Sony Exmor |
| Sensor type | CMOS | CMOS | CMOS BSI | CMOS |
| Aperture | f/2.8 | f/2.2 | f/2 | - |
| Number of lenses | - | 5 | - | - |
| Flash type | LED | LED | LED | LED |
| Image resolution | 3264 x 2448 pixels 7.99 MP | 4128 x 3096 pixels 12.78 MP | 4160 x 3120 pixels 12.98 MP | 4128 x 3096 pixels 12.78 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Scene mode | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Scene mode |
| - | Blue filter glass | - | - |
Front camera
Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.
| Image resolution | 2560 x 1920 pixels 4.92 MP | 2560 x 1920 pixels 4.92 MP | 2560 x 1920 pixels 4.92 MP | 2560 x 1920 pixels 4.92 MP |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS | GPS A-GPS | GPS A-GPS | GPS A-GPS |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.0 | 4.0 | 4.0 | 4.0 |
| Features | A2DP | A2DP | A2DP | A2DP |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | Micro USB | Micro USB | Micro USB |
| Version | 2.0 | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage |
Headphone jack
The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.
| Headphone jack | Yes | Yes | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering HotKnot | Computer sync OTA sync Tethering HotKnot | Computer sync OTA sync Tethering |
Browser
A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
| Browser | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 |
Audio file formats/codecs
Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.
| Audio file formats/codecs | AAC AMR eAAC+ MIDI MP3 WMA WAV | AAC AMR eAAC+ FLAC M4A MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ M4A MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC M4A MIDI MP3 OGG WMA WAV |
Video file formats/codecs
Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.
| Video file formats/codecs | 3GPP AVI Flash Video H.263 H.264 QuickTime MP4 WMV | 3GPP AVI H.263 H.264 MP4 VP8 Xvid | 3GPP AVI H.263 H.264 MKV MP4 VC-1 VP8 WMV WMV9 Xvid | 3GPP AVI H.263 H.264 MP4 VC-1 VP8 WMV WMV7 WMV8 WMV9 Xvid |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 2300 mAh | 3000 mAh | 6050 mAh | 2800 mAh |
| Type | Li-Ion | Li-Polymer | Li-Polymer | Li-Ion |
| 2G talk time | 8 h 480 min 0.3 days | 8 h 480 min 0.3 days | 72 h 4320 min 3 days | 16 h 960 min 0.7 days |
| 2G stand-by time | 150 h 9000 min 6.3 days | 200 h 12000 min 8.3 days | 1080 h 64800 min 45 days | 500 h 30000 min 20.8 days |
| 3G talk time | 6 h 360 min 0.3 days | 8 h 480 min 0.3 days | 72 h 4320 min 3 days | 16 h 960 min 0.7 days |
| 3G stand-by time | 120 h 7200 min 5 days | 200 h 12000 min 8.3 days | 1080 h 64800 min 45 days | 500 h 30000 min 20.8 days |
| Charger output power | - | - | - | 5 V / 1 A |
| Features | Removable | Removable | Fast charging Non-removable | Non-removable |
| VKworld VK2015 | VKworld VK6735 | VKworld VK6050S | VKworld Discovery S1 |