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Brief information about compared phones: Samsung Galaxy S6 edge (CDMA) , vivo X21iSamsung Galaxy S6 edge (CDMA) 2015 year of release, cpu Octa-core (4x2.1 GHz Cortex-A57 & 4x1.5 GHz Cortex-A53), screen 5.1", with resolution 1440x2560. Smartphone has 5 megapixel front camera and 16 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 | Super AMOLED | Super AMOLED | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | 16M | ||
| Screen size | 5.1" inch | 6.28" inch | ||
| Screen area | 71.7 cm2 | 98.4 cm2 | ||
| Screen format | 16:9 (height:width) | 19:9 (height:width) | ||
| Screen to body ratio | 72.0% | 85.0% | ||
| Screen resolution | 1440 x 2560 px | 1080 x 2280 px | ||
| PPI /points per inch/ | 576 PPI | 402 PPI | ||
| Screen protection | Corning Gorilla Glass 4 | |||
| Camera and Video | Rear camera, main | 16 MP, Single | 12 MP, Dual | |
| Camera specs | 16 MP, f/1.9, 28mm (wide), 1/2.6'', 1.12µm, OIS, AF | 12 MP, f/1.8, 1/2.55'', 1.4µm, dual pixel PDAF -5 MP, f/2.0, depth sensor | ||
| Functions | Dual video call, Auto-HDR | LED flash, HDR, panorama | ||
| Video | 1440p@30fps | 1080p@30fps | ||
| Front camera, selfie | 5 MP, Single | 24 MP, Single | ||
| Specifications | 5 MP, f/1.9, 22mm (wide) | 24 MP | ||
| Performance | Operating system OS | Android 5.0.2 (Lollipop), upgradable to 5.1 (Lollipop); TouchWiz UI | Android 8.1 (Oreo); Funtouch 4 | |
| Chipset | Exynos 7420 Octa (14 nm) | Mediatek MT6771 Helio P60 (12 nm) | ||
| Processor CPU | Octa-core (4x2.1 GHz Cortex-A57 & 4x1.5 GHz Cortex-A53) | Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | ||
| Graphics processor GPU | Mali-T760MP8 | Mali-G72 MP3 | ||
| External memory | No | microSD, up to 256 GB (uses SIM 2 slot) | ||
| Internal memory | 32/64/128 GB, 3 GB RAM | 128 GB, 4 GB RAM 64 GB, 6 GB RAM | ||
| Antutu 7 score | 130256 | |||
| GeekBench 4 Single Core | 1497 | |||
| GeekBench 4 Multi-Core | 5759 | |||
| GeekBench 5 Single Core | 259 | |||
| GeekBench 5 Multi-Core | 995 | |||
| General specs | Release date | 2015, March | 2018, May | |
| Dimensions (HxWxD) | 142 Х 70.1 Х 7.1 mm | 154.4 Х 75 Х 7 mm | ||
| Weight | 132 g | 159 g | ||
| Colors | White Pearl, Black Sapphire, Gold Platinum | Black, Aurora White, Ruby Red, Night Purple | ||
| Battery | 2600 mAh, Non-removable Li-Ion | 3425 mAh, Non-removable Li-Ion | ||
| Approximate price | 500 EUR | 430 EUR | ||
| Battery life | Talking time- Up to 26 h (3G) Music play - Up to 58 h | |||
| Body build | Front/back glass (Gorilla Glass 4), aluminum frame | |||
| Communication and Connectivity | SIM card | Nano-SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - G925V CDMA 800 / 1900 - G925V, G925P, G925R -3G - HSDPA 850 / 900 / 1900 / 2100 - G925V CDMA2000 1xEV-DO - G925V, G925R -4G - LTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 13(700) - G925V LTE band 2(1900), 12(700), 25(1900), 26(850), 41(2500) - G925P LTE band 2(1900), 13(700), 17(700), 25(1900) - G925R | 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 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps | HSPA, LTE | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | ||
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | ||
| NFC | Yes | |||
| USB | microUSB 2.0, USB Host | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 4.1, A2DP, LE, aptX | 5.0, A2DP, LE | ||
| Harmful irradiation | SAR - 0.88 W/kg (head) 1.17 W/kg (body) SAR EU - 0.30 W/kg (head) 0.49 W/kg (body) | |||
| Music and Audio | Radio | No | FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | 24-bit/192kHz audio -Active noise cancellation with dedicated mic | 32-bit/192kHz audio -Active noise cancellation with dedicated mic | ||
| Other features | Dop | Sensors Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2 , Infrared port - PMA wireless charging -ANT+ -S-Voice natural language commands and dictation - Samsung Pay (Visa, MasterCard certified) - Also known as Samsung Galaxy S6 edge G925 Versions: G925P (Sprint), G925R (US Cellular), G925V (Verizon), G925W8 (Canada) | Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass - Fast battery charging | |
