📱 Model features |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Model | Twist S520 4G | Galaxy Win Duos (GT-i8552) |
| Other model names | Positivo Twist 4G, Positivo S520 4G Dual Chip 8GB | Samsung Galaxy Win Duos i8552, GT-i8552B |
| Country or region available | 
Brazil | feature not registered |
| Brand | Positivo | Samsung |
| Release date | 7/11/2016 | 5/6/2013 |
| Depth | 9.4 millimeters (0.37 inches) | 9.65 millimeters (0.38 inches) |
| Size (width x height) | 72 x 145 millimeters (2.83 x 5.71 in) | 70.7 x 133.3 millimeters (2.78 x 5.25 in) |
| Weight | 149 grams (5.22 ounces) | 144 grams (5.04 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
🤖 Operating System |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| System version | Android 6.0 Marshmallow | Android 4.1.2 Jelly Bean |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Chipset | 32bit - MediaTek | 32bit - Qualcomm Snapdragon 200 MSM8225Q |
| CPU | Quad-Core, 1 processor:
1GHz Quad-Core | Quad-Core, 1 processor:
1.2GHz Quad-Core ARM Cortex-A5 |
| GPU graphical controller | feature not registered | Qualcomm Adreno 203 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| RAM memory | 1GB | 1GB LPDDR2 |
| Internal storage | 8GB (4GB available) | 8GB (5GB available) |
| External storage | Until 64GB microSD, microSDXC
(dedicated slot) | Until 32GB microSD, microSDHC
(dedicated slot) |
📲 Display |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Display type | TFT LCD | TFT LCD |
| Screen size | 5" inches | 4.7" inches |
| Screen-to-body ratio | ~66% (screen-to-body ratio) | ~66.7% (screen-to-body ratio) |
| Display resolution | 480x854 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 196 PPI | 199 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
📶 Mobile networks |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card
(dedicated slot) | Dual-SIM Standby - Call active on one sim card
(dedicated slot) |
| SIM card | 2 slots (Dual-SIM)
micro-SIM (3FF) and standard SIM (2FF) | 2 slots (Dual-SIM)
micro-SIM (3FF) and standard SIM (2FF) |
| Maximum download/upload | 150/50 Mbps | 7.2/5.76 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| Frequency, bands | Expand band detailsCollapse details |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/2100 | UMTS 900/2100 |
| Primary 4G network | LTE Cat4 (Bands 3, 7, 28) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Back camera (main camera) | 8 megapixels | 5 megapixels |
| Main camera resolution | 3264x2448 pixels | 2592x1944 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | HD (1280x720) 15 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Front camera (secondary) | 5 megapixels | 0.3 megapixels |
| Front camera resolution | 2592x1944 pixels | 640x480 pixels |
| Video recording (secondary) | HD (1280x720) | VGA (640x480) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, AC3, FLAC |
🔌 Connectivity |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 3.0 + A2DP |
| WiFi | 802.11 b/g/n (2.4Ghz) | 802.11 b/g/n (2.4Ghz) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Sensors | Accelerometer
Ambient Light sensor
Proximity sensor | Accelerometer
Ambient Light sensor
Compass
Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Battery type | Li-Ion: Lithium-Ion (Removable) | Li-Ion: Lithium-Ion (Removable) |
| Battery capacity | 2200 mAh | 2000 mAh |
| Charger, watts | Standard charging | Standard charging |
| Talk time autonomy | feature not registered | 11 hours |
| Standby | feature not registered | 210 hours (8.8 days) |
➕ Other features |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | - Colors: Gold, Blue
- Screen protector included
- Extra case included
- Positivo Apps
- WiFi hotspot | - Colors: White, Titan Gray
- Samsung TouchWiz
- WiFi hotspot
- Java framework |
☢️ Radiation rate |
| Positivo Twist S520 4G | Samsung Galaxy Win Duos (GT-i8552) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.26W/kg (head), 0.665W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.12W/kg (head), 0.511W/kg (body) |