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Brief information about compared phones: Celkon A64 , Oppo A3sCelkon 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 . Oppo A3s 2018 year of release. cpu Octa-core 1.8 GHz Cortex-A53. screen 6.2". with resolution 720x1520. Smartphone has 8 megapixel front camera and 13 megapixel main camera . |
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| Display | Technology | TFT | IPS LCD | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | |||
| Screen size | 4" inch | 6.2" inch | ||
| Screen area | 47.6 cm2 | 95.9 cm2 | ||
| Screen format | 3:2 (height:width) | 19:9 (height:width) | ||
| Screen to body ratio | 59.1% | 81.2% | ||
| Screen resolution | 320 x 480 px | 720 x 1520 px | ||
| PPI /points per inch/ | 144 PPI | 271 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 13 MP, Dual | |
| Camera specs | 2 MP | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor | ||
| Functions | LED flash | LED flash, HDR, panorama | ||
| Video | Yes | 1080p@30fps | ||
| Front camera, selfie | 0.3 MP, Single | 8 MP, Single | ||
| Specifications | VGA | 8 MP, f/2.2 | ||
| Performance | Operating system OS | Android 4.2.2 (Jelly Bean) | Android 8.1 (Oreo); ColorOS 5.1 | |
| Chipset | Qualcomm SDM450 Snapdragon 450 (14 nm) | |||
| Processor CPU | Dual-core 1.2 GHz | Octa-core 1.8 GHz Cortex-A53 | ||
| Graphics processor GPU | Adreno 506 | |||
| External memory | microSD, up to 32 GB | microSD, up to 256 GB (dedicated slot) | ||
| Internal memory | 512 MB, 256 MB RAM | 16 GB, 2 GB RAM | ||
| Antutu 7 score | 64122 | |||
| General specs | Release date | 2014 | 2018, July | |
| Dimensions (HxWxD) | 124 Х 65 Х 10.5 mm | 156.2 Х 75.6 Х 8.2 mm | ||
| Weight | 125.6 g | 168 g | ||
| Colors | White, Black | Red, Dark Purple | ||
| Battery | 1400 mAh, Li-Ion | 4230 mAh, Non-removable Li-Ion | ||
| Approximate price | 11000 INR | |||
| Battery life | Stand by time- Up to 150 h Talking time- Up to 8 h 20 min | |||
| Communication and Connectivity | SIM card | Dual 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 / 900 / 2100 -4G - LTE | ||
| 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 b/g/n, WiFi Direct, hotspot | ||
| GPS | Yes | Yes, with A-GPS | ||
| NFC | ||||
| USB | microUSB | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 2.0 | 4.2, A2DP, LE | ||
| Harmful irradiation | SAR EU - 0.42 W/kg (head) 0.55 W/kg (body) | |||
| Music and Audio | Radio | FM radio | FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | Active noise cancellation with dedicated mic | |||
| Other features | Dop | Sensors Accelerometer | Sensors Accelerometer, proximity, compass - For India | |
