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Brief information about compared phones: Celkon A355 , Sharp R1SCelkon A355 2015 year of release. cpu 1.0 GHz. screen 3.5". with resolution 320x480. Smartphone has 0 megapixel front camera and 2 megapixel main camera . Sharp R1S 2018 year of release. cpu Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53). screen 5.5". with resolution 720x1280. Smartphone has 5 megapixel front camera and 13 megapixel main camera . |
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| Display | Technology | IPS LCD | ||
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | |||
| Screen size | 3.5" inch | 5.5" inch | ||
| Screen area | 36.5 cm2 | 83.4 cm2 | ||
| Screen format | 3:2 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 50.0% | % | ||
| Screen resolution | 320 x 480 px | 720 x 1280 px | ||
| PPI /points per inch/ | 165 PPI | 267 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 13 MP, Dual | |
| Camera specs | 2 MP | 13 MP, f/2.0, AF -5 MP, depth sensor | ||
| Functions | Dual-LED flash | Dual-LED dual-tone flash, panorama, HDR | ||
| Video | Yes | 1080p@30fps | ||
| Front camera, selfie | 0.3 MP, Single | 5 MP, Single | ||
| Specifications | VGA | 5 MP, f/2.4 | ||
| Performance | Operating system OS | Android 4.4.2 (KitKat) | Android 7.0 (Nougat) | |
| Chipset | Spreadtrum 7715 | 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-400 | Mali-T860MP2 | ||
| External memory | microSD, up to 32 GB | microSD, up to 128 GB (uses SIM 2 slot) | ||
| Internal memory | 512 MB, 256 MB RAM | 32 GB, 3 GB RAM | ||
| Antutu 7 score | 48572 | |||
| General specs | Release date | 2015, May | 2018, February | |
| Dimensions (HxWxD) | 115.3 Х 63.3 Х 10.2 mm | Х Х mm | ||
| Weight | 97.5 g | 0 g | ||
| Colors | Light Blue, Dart Blue, Red, Yellow, White | Black | ||
| Battery | 1200 mAh, Li-Ion | 5000 mAh, Non-removable Li-Ion | ||
| Approximate price | 170 EUR | |||
| Communication and Connectivity | SIM card | Dual SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Network | Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300) | ||
| Speed | HSPA | HSPA, LTE | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, 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 - 0.49 W/kg (head) 0.84 W/kg (body) | |||
| Music and Audio | Radio | FM radio | To be confirmed | |
| Headphone jack | Yes | No | ||
| Others | Active noise cancellation with dedicated mic | |||
| Other features | Dop | Sensors Accelerometer | Sensors Fingerprint (front-mounted), accelerometer, proximity - Power Bank/Reverse charging - For Indonesia, Vietnam | |
