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Brief information about compared phones: Allview V2 Viper S , T-Mobile MDA BasicAllview V2 Viper S 2016 year of release. cpu Octa-core 1.3 GHz Cortex-A53. screen 5.5". with resolution 1080x1920. Smartphone has 5 megapixel front camera and 16 megapixel main camera . T-Mobile MDA Basic 2009 year of release. cpu 200 MHz ARM926EJ-S. screen 2.8". with resolution 240x320. Smartphone has 2 megapixel main camera . |
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| Display | Technology | LTPS IPS LCD | TFT | |
| Touchscreen | capacitive touchscreen | resistive touchscreen | ||
| Display colors | 16M | 65K | ||
| Screen size | 5.5" inch | 2.8" inch | ||
| Screen area | 83.4 cm2 | 24.3 cm2 | ||
| Screen format | 16:9 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 76.7% | 39.2% | ||
| Screen resolution | 1080 x 1920 px | 240 x 320 px | ||
| PPI /points per inch/ | 401 PPI | 143 PPI | ||
| Screen protection | Scratch-resistant glass | |||
| Camera and Video | Rear camera, main | 16 MP, Single | 2 MP, Single | |
| Camera specs | 16 MP, PDAF & laser AF, f/2.0 | 2 MP | ||
| Functions | Dual-LED flash, HDR | |||
| Video | 1080p@30fps | Yes | ||
| Front camera, selfie | 5 MP, Single | 0 MP, | ||
| Specifications | 5 MP | |||
| Performance | Operating system OS | Android 6.0 (Marshmallow) | Microsoft Windows Mobile 6.1 Professional | |
| Chipset | Mediatek MT6753 (28 nm) | TI OMAP 850 | ||
| Processor CPU | Octa-core 1.3 GHz Cortex-A53 | 200 MHz ARM926EJ-S | ||
| Graphics processor GPU | Mali-T720MP2 | |||
| External memory | microSD, up to 256 GB | microSD (dedicated slot) | ||
| Internal memory | 32 GB, 3 GB RAM | 128 MB RAM, 256 MB ROM | ||
| General specs | Release date | 2016, October | 2009, January | |
| Dimensions (HxWxD) | 146 Х 74.5 Х 8.2 mm | 105 Х 59 Х 16 mm | ||
| Weight | 141.6 g | 110 g | ||
| Colors | Gray, Gold | Gray | ||
| Battery | 3000 mAh, Removable Li-Po | 1100 mAh, Removable Li-Ion | ||
| Battery life | Stand by time- Up to 210 h (3G) Talking time- Up to 14 h (3G) | Stand by time- Up to 270 h Talking time- Up to 8 h | ||
| Communication and Connectivity | SIM card | Single SIM (Micro-SIM)Dual SIM (Micro-SIM, dual stand-by) | Mini-SIM | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 1(2100), 3(1800), 7(2600), 20(800), 38(2600) | Show all network frequencies: | ||
| Speed | HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps | |||
| GPRS | Yes | Class 10 | ||
| Edge | Yes | Class 10 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11b/g | ||
| GPS | Yes, with A-GPS | No | ||
| NFC | Super AMOLED | |||
| USB | microUSB 2.0 | miniUSB | ||
| Bluetooth | 4.0, A2DP, EDR | 2.0, A2DP | ||
| Music and Audio | Radio | FM radio | No | |
| Headphone jack | Yes | No | ||
| Others | TouchFLO finger swipe navigation -Handwriting recognition -5-way navigation | |||
| Other features | Dop | Sensors Accelerometer, proximity, compass - Acer Liquid Zest Z525 with 3G Acer Liquid Zest 4G Z528 with 3G/LTE, Infrared port - Fast battery charging (Pump Express 2.0+) - For metroPCS | Pocket Office -Voice memo -MP3/AAC player | |
