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Brief information about compared phones: Celkon A87 , Yezz Epic TCelkon A87 2013 year of release. cpu 1.0 GHz. screen 4". with resolution 480x800. Smartphone has 0 megapixel front camera and 5 megapixel main camera . Yezz Epic T 2018 year of release. cpu Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53). screen 5.5". with resolution 1080x1920. Smartphone has 8 megapixel front camera and 16 megapixel main camera . |
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| Display | Technology | IPS LCD | ||
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | |||
| Screen size | 4" inch | 5.5" inch | ||
| Screen area | 45.5 cm2 | 83.4 cm2 | ||
| Screen format | 5:3 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | % | 57.1% | ||
| Screen resolution | 480 x 800 px | 1080 x 1920 px | ||
| PPI /points per inch/ | 233 PPI | 401 PPI | ||
| Screen protection | Corning Gorilla Glass 3 | |||
| Camera and Video | Rear camera, main | 5 MP, Single | 16 MP, Single | |
| Camera specs | 5 MP, AF | 16 MP, AF | ||
| Functions | LED flash, panorama, HDR | |||
| Video | Yes | 1080p@60fps | ||
| Front camera, selfie | 0.3 MP, Single | 8 MP, Single | ||
| Specifications | VGA | 8 MP | ||
| Performance | Operating system OS | Android 2.3.6 (Gingerbread) | Android 7.0 (Nougat) | |
| Chipset | Spreadtrum 6820 | Mediatek MT6750 (28 nm) | ||
| Processor CPU | 1.0 GHz | Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) | ||
| Graphics processor GPU | Mali-T860MP2 | |||
| External memory | microSD, up to 32 GB (dedicated slot) | microSD, up to 128 GB | ||
| Internal memory | 512 MB, 512 MB RAM | 32 GB, 3 GB RAM | ||
| Antutu 7 score | 38602 | |||
| General specs | Release date | 2013, January | 2018, March | |
| Dimensions (HxWxD) | Х Х mm | 168.8 Х 86.5 Х 15.9 mm | ||
| Weight | 0 g | 469 g | ||
| Colors | Black, White | Black | ||
| Battery | 1450 mAh, Li-Ion | 9000 mAh, Non-removable Li-Po | ||
| Approximate price | 70 EUR | 250 EUR | ||
| Battery life | Stand by time- Up to 220 h Talking time- Up to 3 h | Stand by time- Up to 650 h (3G) Talking time- Up to 30 h (3G) | ||
| Communication and Connectivity | SIM card | Dual SIM (Mini-SIM) | Dual SIM (Nano-SIM, dual stand-by) | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1900 / 2100 -4G - LTE band 2(1900), 4(1700/2100), 7(2600), 17(700), 28(700) | ||
| Speed | HSPA 42.2/11.5 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | ||
| GPS | No | Yes, with A-GPS | ||
| NFC | ||||
| USB | Proprietary | 2.0, Type-C 1.0 reversible connector | ||
| Bluetooth | Yes | 4.0, A2DP, LE | ||
| Music and Audio | Radio | FM radio | FM radio | |
| Headphone jack | Yes | Yes | ||
| Other features | Dop | Sensors Accelerometer | Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass - Fast battery charging - IP68 dust/water proof (up to 1.5m for 30 mins) -MIL-STD-810G compliant -Flashlight | |
