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Brief information about compared phones: Celkon A64 , Sharp Aquos S3Celkon A64 2014 year of release. cpu Dual-core 1.2 GHz. screen 4". with resolution 320x480. Smartphone has 0 megapixel front camera and 2 megapixel main camera . Sharp Aquos S3 2018 year of release. cpu Octa-core 2.2 GHz Cortex-A53. screen 6". with resolution 1080x2160. Smartphone has 16 megapixel front camera and 12 megapixel main camera . |
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| Display | Technology | TFT | IGZO IPS LCD | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | |||
| Screen size | 4" inch | 6" inch | ||
| Screen area | 47.6 cm2 | 92.9 cm2 | ||
| Screen format | 3:2 (height:width) | 18:9 (height:width) | ||
| Screen to body ratio | 59.1% | 84.5% | ||
| Screen resolution | 320 x 480 px | 1080 x 2160 px | ||
| PPI /points per inch/ | 144 PPI | 402 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 12 MP, Dual | |
| Camera specs | 2 MP | 12 MP, f/1.8, 1/2.55'', 1.4µm, dual pixel PDAF -13 MP, 2x optical zoom | ||
| Functions | LED flash | Dual-LED dual-tone flash, HDR, panorama | ||
| Video | Yes | 1080p@30fps | ||
| Front camera, selfie | 0.3 MP, Single | 16 MP, Single | ||
| Specifications | VGA | 16 MP, f/2.0 | ||
| Performance | Operating system OS | Android 4.2.2 (Jelly Bean) | Android 8.0 (Oreo) | |
| Chipset | Qualcomm SDM630 Snapdragon 630 (14 nm) | |||
| Processor CPU | Dual-core 1.2 GHz | Octa-core 2.2 GHz Cortex-A53 | ||
| Graphics processor GPU | Adreno 508 | |||
| External memory | microSD, up to 32 GB | microSD, up to 256 GB (uses SIM 2 slot) | ||
| Internal memory | 512 MB, 256 MB RAM | 64 GB, 6 GB RAM | ||
| Antutu 7 score | 89256 | |||
| General specs | Release date | 2014 | 2018, March | |
| Dimensions (HxWxD) | 124 Х 65 Х 10.5 mm | 148.2 Х 74.2 Х 8 mm | ||
| Weight | 125.6 g | 165.4 g | ||
| Colors | White, Black | Black,Blue, Gold | ||
| Battery | 1400 mAh, Li-Ion | 3200 mAh, Non-removable Li-Ion | ||
| Approximate price | 400 EUR | |||
| Battery life | Stand by time- Up to 150 h Talking time- Up to 8 h 20 min | |||
| Communication and Connectivity | SIM card | Dual SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | ||
| Speed | HSPA 42.2/5.76 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 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | ||
| GPS | Yes | Yes, with A-GPS, GLONASS | ||
| NFC | Yes | |||
| USB | microUSB | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | ||
| Bluetooth | 2.0 | 5.0, A2DP, LE | ||
| Harmful irradiation | SAR EU - 0.42 W/kg (head) 0.55 W/kg (body) | |||
| Music and Audio | Radio | FM radio | No | |
| Headphone jack | Yes | Yes | ||
| Others | Active noise cancellation with dedicated mic | |||
| Other features | Dop | Sensors Accelerometer | Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass - Fast battery charging 9V/2A (Quick Charge 3.0) | |
