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Brief information about compared phones: Nokia 6121 classic , vivo X21iNokia 6121 classic 2007 year of release, cpu 369 MHz ARM 11, screen 2", with resolution 240x320. Smartphone has 0 megapixel front camera and 2 megapixel main camera. vivo X21i 2018 year of release, cpu Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53), screen 6.28", with resolution 1080x2280. Smartphone has 24 megapixel front camera and 12 megapixel main camera. |
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| Display | Technology | TFT | Super AMOLED | |
| Touchscreen | capacitive touchscreen | |||
| Display colors | 16M | 16M | ||
| Screen size | 2" inch | 6.28" inch | ||
| Screen area | 12.4 cm2 | 98.4 cm2 | ||
| Screen format | 4:3 (height:width) | 19:9 (height:width) | ||
| Screen to body ratio | 25.6% | 85.0% | ||
| Screen resolution | 240 x 320 px | 1080 x 2280 px | ||
| PPI /points per inch/ | 200 PPI | 402 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 12 MP, Dual | |
| Camera specs | 2 MP | 12 MP, f/1.8, 1/2.55'', 1.4µm, dual pixel PDAF -5 MP, f/2.0, depth sensor | ||
| Functions | LED flash | LED flash, HDR, panorama | ||
| Video | 320p | 1080p@30fps | ||
| Front camera, selfie | 0.3 MP, Single | 24 MP, Single | ||
| Specifications | VGA videocall camera | 24 MP | ||
| Performance | Operating system OS | Symbian 9.2, S60 rel. 3.1 | Android 8.1 (Oreo); Funtouch 4 | |
| Chipset | Mediatek MT6771 Helio P60 (12 nm) | |||
| Processor CPU | 369 MHz ARM 11 | Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | ||
| Graphics processor GPU | Mali-G72 MP3 | |||
| External memory | microSD, up to 8 GB (dedicated slot) | microSD, up to 256 GB (uses SIM 2 slot) | ||
| Internal memory | 32 MB, 64 MB RAM, 128 MB ROM | 128 GB, 4 GB RAM 64 GB, 6 GB RAM | ||
| Antutu 7 score | 130256 | |||
| GeekBench 4 Single Core | 1497 | |||
| GeekBench 4 Multi-Core | 5759 | |||
| General specs | Release date | 2007, June | 2018, May | |
| Dimensions (HxWxD) | 105 Х 46 Х 15 mm | 154.4 Х 75 Х 7 mm | ||
| Weight | 89 g | 159 g | ||
| Colors | Black, Pearl White, Pink, Sand Gold | Black, Aurora White, Ruby Red, Night Purple | ||
| Battery | 890 mAh, Removable Li-Ion | 3425 mAh, Non-removable Li-Ion | ||
| Approximate price | 180 EUR | 430 EUR | ||
| Battery life | Stand by time- Up to 250 h (2G) / 240 h (3G) Talking time- Up to 3 h (2G) / 2 h 24 min (3G) | |||
| Communication and Connectivity | SIM card | Mini-SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| 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 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500) | ||
| Speed | HSPA 3.6/0.384 Mbps | HSPA, LTE | ||
| GPRS | Class 32 | Yes | ||
| Edge | Class 32, 296 / 177.6 kbits | Yes | ||
| Wi-Fi | No | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | ||
| GPS | No | Yes, with A-GPS, GLONASS | ||
| NFC | ||||
| USB | miniUSB | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 2.0, A2DP | 5.0, A2DP, LE | ||
| Harmful irradiation | SAR - 1.22 W/kg (head) 1.13 W/kg (body) SAR EU - 1.18 W/kg (head) | |||
| Music and Audio | Radio | Stereo FM radio | FM radio | |
| Headphone jack | No | Yes | ||
| Others | Downloadable wallpapers, screensavers | 32-bit/192kHz audio -Active noise cancellation with dedicated mic | ||
| Other features | Dop | Push to talk -WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word, Excel, PowerPoint, PDF) -Voice memo/dial -Predictive text input -Organizer | Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass - Fast battery charging | |
