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Brief information about compared phones: Nokia 603 , Yezz Billy 4Nokia 603 2011 year of release. cpu 1.0 GHz. screen 3.5". with resolution 360x640. Smartphone has 5 megapixel main camera . Yezz Billy 4 2014 year of release. cpu Quad-core 1.2 GHz Cortex-A7. screen 4". with resolution 480x800. Smartphone has 1 megapixel front camera and 8 megapixel main camera . |
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| Display | Technology | IPS LCD | TFT | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | 16M | ||
| Screen size | 3.5" inch | 4" inch | ||
| Screen area | 33.8 cm2 | 45.5 cm2 | ||
| Screen format | 16:9 (height:width) | 5:3 (height:width) | ||
| Screen to body ratio | 52.1% | 57.7% | ||
| Screen resolution | 360 x 640 px | 480 x 800 px | ||
| PPI /points per inch/ | 210 PPI | 233 PPI | ||
| Screen protection | Scratch-resistant glass | |||
| Camera and Video | Rear camera, main | 5 MP, Single | 8 MP, Single | |
| Camera specs | 5 MP | 8 MP, AF | ||
| Functions | fixed focus | LED flash | ||
| Video | 720p@30fps | 720p@30fps | ||
| Front camera, selfie | 0 MP, | 1.3 MP, Single | ||
| Specifications | 1.3 MP | |||
| Performance | Operating system OS | Symbian Belle, upgradable to Belle FP1 | Microsoft Windows Phone 8.1 | |
| Chipset | Qualcomm MSM8212 Snapdragon 200 (28 nm) | |||
| Processor CPU | 1.0 GHz | Quad-core 1.2 GHz Cortex-A7 | ||
| Graphics processor GPU | Adreno 302 | |||
| External memory | microSD, up to 32 GB (dedicated slot) | microSD, up to 256 GB | ||
| Internal memory | 2 GB (340 MB user available), 512 MB RAM, 1 GB ROM | 4 GB, 512 MB RAM | ||
| General specs | Release date | 2011, October | 2014, June | |
| Dimensions (HxWxD) | 113.5 Х 57.1 Х 12.7 mm | 122.5 Х 64.4 Х 9.9 mm | ||
| Weight | 109.6 g | 109 g | ||
| Colors | Black, white (front panel)/ black, White, Fuchsia, Green, Yellow, blue (back panel) | White, Black, Red, Gun Metal, Blue, Yellow, Champing Gold | ||
| Battery | 0 mAh, | 1300 mAh, Removable Li-Ion | ||
| Approximate price | 100 EUR | |||
| Battery life | Stand by time- Up to 460 h (2G) / Up to 490 h (3G) Talking time- Up 16 h (2G) / Up to 7 h (3G) Music play - Up to 75 h | Stand by time- Up to 350 h (2G) / Up to 300 h (3G) Talking time- Up to 7 h (2G) / Up to 4 h 30 min (3G) | ||
| Communication and Connectivity | SIM card | Micro-SIM | Dual SIM (Micro-SIM) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | ||
| Speed | HSPA 14.4/5.76 Mbps | HSPA 42.2/5.76 Mbps | ||
| GPRS | Class 33 | Class 12 | ||
| Edge | Class 33 | Class 12 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | ||
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS | ||
| NFC | Yes | |||
| USB | microUSB 2.0, USB Host | microUSB 2.0 | ||
| Bluetooth | 3.0, A2DP | 4.0, A2DP | ||
| Harmful irradiation | SAR - 1.33 W/kg (head) 1.02 W/kg (body) SAR EU - 0.98 W/kg (head) | |||
| Music and Audio | Radio | Stereo FM radio, RDS | Stereo FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | Nokia ClearBlack display | |||
| Other features | Dop | Sensors Accelerometer, proximity, compass - SNS integration -MP4/WMV/H.264 player -MP3/WAV/еAAC+ player -Dolby Digital Plus (via FP1 update) -Photo editor -Organizer -Quickoffice document editor -Adobe PDF Reader -Voice command/dial -Predictive text input | Sensors Accelerometer, proximity | |
