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Brief information about compared phones: A1 Alpha , Nokia E51A1 Alpha 2019 year of release. cpu Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55). screen 6.26". with resolution 720x1520. Smartphone has 8 megapixel front camera and 13 megapixel main camera . Nokia E51 2007 year of release. cpu 369 MHz ARM 11. screen 2". with resolution 240x320. Smartphone has 2 megapixel main camera . |
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| Display | Technology | IPS LCD | TFT | |
| Touchscreen | capacitive touchscreen | |||
| Display colors | 16M | 16M | ||
| Screen size | 6.26" inch | 2" inch | ||
| Screen area | 97.8 cm2 | 12.4 cm2 | ||
| Screen format | 19:9 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 82.1% | 23.5% | ||
| Screen resolution | 720 x 1520 px | 240 x 320 px | ||
| PPI /points per inch/ | 269 PPI | 200 PPI | ||
| Camera and Video | Rear camera, main | 13 MP, Dual | 2 MP, Single | |
| Camera specs | 13 MP, f/2.0, AF -2 MP, f/2.4, depth sensor | 2 MP | ||
| Functions | LED flash, HDR | |||
| Video | 1080p@30fps | 320p@15fps | ||
| Front camera, selfie | 8 MP, Single | 0 MP, | ||
| Specifications | 8 MP, f/2.0 | |||
| Performance | Operating system OS | Android 9.0 (Pie) | Symbian OS 9.2, Series 60 v3.1 UI | |
| Chipset | Unisoc SC9863A (28nm) | |||
| Processor CPU | Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55) | 369 MHz ARM 11 | ||
| Graphics processor GPU | IMG8322 | |||
| External memory | microSD, up to 256 GB (uses shared SIM slot) | microSD, up to 16 GB (dedicated slot) | ||
| Internal memory | 32GB 2GB RAM, 64GB 3GB RAM | 130 MB, 96 MB RAM | ||
| General specs | Release date | 2019, August | 2007, September | |
| Dimensions (HxWxD) | 151.7 Х 75.8 Х 8.1 mm | 114.8 Х 46 Х 12 mm | ||
| Weight | 150 g | 100 g | ||
| Colors | Black, Green | Black, Silver | ||
| Battery | 3200 mAh, Non-removable Li-Ion | 1050 mAh, Removable Li-Ion | ||
| Approximate price | 150 EUR | 120 EUR | ||
| Battery life | Stand by time- Up to 310 h Talking time- Up to 4 h 20 min | |||
| Communication and Connectivity | SIM card | Hybrid Dual SIM (Nano-SIM, dual stand-by) | Mini-SIM | |
| Network | 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), 20(800), 38(2600) | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | ||
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 3.6/0.384 Mbps | ||
| GPRS | Yes | Class 32 | ||
| Edge | Yes | Class 32 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11b/g, VoIP over WLAN | ||
| GPS | Yes, with A-GPS, GLONASS | No | ||
| NFC | Yes (64/3GB model only) | |||
| USB | microUSB 2.0, USB On-The-Go | miniUSB 2.0 | ||
| Bluetooth | 4.2, A2DP, LE | 2.0, A2DP | ||
| Harmful irradiation | SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head) | |||
| Music and Audio | Radio | FM radio | FM radio | |
| Headphone jack | Yes | No | ||
| Others | Active noise cancellation with dedicated mic | Five-way scroll key -Downloadable themes | ||
| Other features | Dop | Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass | , Infrared port - Push to talk -WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word, Excel, PowerPoint, PDF) incl. MS Office 2007 support via free update -Predictive text input -Voice command/memo -Organizer | |
