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Brief information about compared phones: Apple iPhone 6s , Celkon A35kApple iPhone 6s 2015 year of release. cpu Dual-core 1.84 GHz Twister. screen 4.7". with resolution 750x1334. Smartphone has 5 megapixel front camera and 12 megapixel main camera . Celkon A35k 2014 year of release. cpu 1.0 GHz. screen 3.5". with resolution 320x480. Smartphone has 0 megapixel front camera and 3 megapixel main camera . |
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| Display | Technology | LED-backlit IPS LCD | TFT | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | |||
| Screen size | 4.7" inch | 3.5" inch | ||
| Screen area | 60.9 cm2 | 36.5 cm2 | ||
| Screen format | 16:9 (height:width) | 3:2 (height:width) | ||
| Screen to body ratio | 65.6% | 48.7% | ||
| Screen resolution | 750 x 1334 px | 320 x 480 px | ||
| PPI /points per inch/ | 326 PPI | 165 PPI | ||
| Screen protection | Ion-strengthened glass, oleophobic coating | |||
| Camera and Video | Rear camera, main | 12 MP, Single | 3.15 MP, Single | |
| Camera specs | 12 MP, f/2.2, 29mm (standard), 1/3'', 1.22µm, PDAF | 3.15 MP | ||
| Functions | Face detection, HDR, panorama | |||
| Video | 1080p@30fps | Yes | ||
| Front camera, selfie | 5 MP, Single | 0.3 MP, Single | ||
| Specifications | 5 MP, f/2.2, 31mm (standard) | VGA | ||
| Performance | Operating system OS | iOS 9, upgradable to iOS 12.1.3 | Android 4.4.2 (KitKat) | |
| Chipset | Apple A9 (14 nm) | |||
| Processor CPU | Dual-core 1.84 GHz Twister | 1.0 GHz | ||
| Graphics processor GPU | PowerVR GT7600 (six-core graphics) | |||
| External memory | No | microSD, up to 32 GB | ||
| Internal memory | 16/32/64/128 GB, 2 GB RAM | 512 MB/ 2 GB, 256 MB RAM | ||
| Antutu 7 score | 133981 | |||
| GeekBench 4 Single Core | 2273 | |||
| GeekBench 4 Multi-Core | 3928 | |||
| Antutu 8 score | 148076 | |||
| GeekBench 4 Battery | 1488 | |||
| General specs | Release date | 2015, September | 2014 | |
| Dimensions (HxWxD) | 138.3 Х 67.1 Х 7.1 mm | 119 Х 63 Х 10.7 mm | ||
| Weight | 143 g | 102 g | ||
| Colors | Space Gray, Silver, Gold, Rose Gold | White, Blue | ||
| Battery | 1715 mAh, Non-removable Li-Ion | 1400 mAh, Removable Li-Ion | ||
| Approximate price | 500 EUR | 40 EUR | ||
| Battery life | Stand by time- Up to 240 h (3G) Talking time- Up to 14 h (3G) Music play - Up to 50 h | |||
| Body build | Front glass, aluminum body | |||
| Communication and Connectivity | SIM card | Nano-SIM | Dual SIM (Mini-SIM) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1700 / 1900 / 2100 -3G - HSDPA 850 / 900 / 1700 / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700) - A1688 LTE band 1(2100), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500) - A1687 | Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 | ||
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps | HSPA | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | Wi-Fi 802.11 b/g/n | ||
| GPS | Yes, with A-GPS, GLONASS, GALILEO, QZSS | No | ||
| NFC | Yes (Apple Pay only) | |||
| USB | 2.0, proprietary reversible connector | microUSB 2.0 | ||
| Bluetooth | 4.2, A2DP, LE | 2.0 | ||
| Harmful irradiation | SAR - 1.14 W/kg (head) 1.14 W/kg (body) SAR EU - 0.87 W/kg (head) 0.98 W/kg (body) | SAR EU - 0.56 W/kg (head) 0.51 W/kg (body) | ||
| Music and Audio | Radio | No | FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | 3D Touch | |||
| Other features | Dop | Sensors Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer - Siri natural language commands and dictation - Apple Pay (Visa, MasterCard, AMEX certified) | Sensors Accelerometer, proximity | |
