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vivo X21i vs Sony Xperia Z Ultra

 
Brief information about compared phones: Sony Xperia Z Ultra , vivo X21i

Sony Xperia Z Ultra 2013 year of release, cpu Quad-core 2.2 GHz Krait 400, screen 6.4", with resolution 1080x1920. Smartphone has 2 megapixel front camera and 8 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.

Display Technology IPS LCD Super AMOLED
Touchscreen capacitive touchscreen capacitive touchscreen
Display colors 16M 16M
Screen size 6.4" inch 6.28" inch
Screen area 112.9 cm2 98.4 cm2
Screen format 16:9 (height:width) 19:9 (height:width)
Screen to body ratio 68.3% 85.0%
Screen resolution 1080 x 1920 px 1080 x 2280 px
PPI /points per inch/ 344 PPI 402 PPI
Screen protection Shatter proof glass
Camera and Video Rear camera, main 8 MP, Single 12 MP, Dual
Camera specs 8 MP, AF, f/2.4 12 MP, f/1.8, 1/2.55'', 1.4µm, dual pixel PDAF -5 MP, f/2.0, depth sensor
Functions HDR LED flash, HDR, panorama
Video 1080p@30fps 1080p@30fps
Front camera, selfie 2 MP, Single 24 MP, Single
Specifications 2 MP 24 MP
Performance Operating system OS Android 4.2 (Jelly Bean), upgradable to 5.1 (Lollipop) Android 8.1 (Oreo); Funtouch 4
Chipset Qualcomm MSM8274 or MSM8974 Snapdragon 800 (28 nm) Mediatek MT6771 Helio P60 (12 nm)
Processor CPU Quad-core 2.2 GHz Krait 400 Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU Adreno 330 Mali-G72 MP3
External memory microSD, up to 64 GB (dedicated slot) microSD, up to 256 GB (uses SIM 2 slot)
Internal memory 16 GB, 2 GB RAM 128 GB, 4 GB RAM 64 GB, 6 GB RAM
Antutu 7 score 65122 130256
GeekBench 4 Single Core 973 1497
GeekBench 4 Multi-Core 2463 5759
GeekBench 4 RenderScript 2328
General specs Release date 2013, June 2018, May
Dimensions (HxWxD) 179.4 Х 92.2 Х 6.5 mm 154.4 Х 75 Х 7 mm
Weight 212 g 159 g
Colors Black, White, Purple Black, Aurora White, Ruby Red, Night Purple
Battery 3050 mAh,  Non-removable Li-Ion 3425 mAh,  Non-removable Li-Ion
Approximate price 280 EUR 430 EUR
Battery life Stand by time- Up to 790 h (2G) / Up to 820 h (3G) Talking time- Up to 14 h (2G) / Up to 16 h (3G) Music play - Up to 120 h
Communication and Connectivity SIM card Micro-SIM Hybrid Dual SIM (Nano-SIM, dual stand-by)
Network Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - all versions -3G - HSDPA 850 / 900 / 1700 / 1900 / 2100 - all versions -4G - LTE band 1(2100), 2(1900), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700) - C6806  LTE band 1(2100), 3(1800), 20(800) - C6833 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 Cat4 150/50 Mbps HSPA, LTE
GPRS Up to 107 kbps Yes
Edge Up to 296 kbps Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, 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 (MHL TV-out), USB Host microUSB 2.0, USB On-The-Go
Bluetooth 4.0, A2DP, aptX 5.0, A2DP, LE
Harmful irradiation SAR - 1.01 W/kg (head)     1.54 W/kg (body)     SAR EU - 0.34 W/kg (head)    
Music and Audio Radio Stereo FM radio, RDS FM radio
Headphone jack Yes Yes
Others Triluminos display -X-Reality Engine 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features Dop Sensors Accelerometer, gyro, proximity, compass - ANT+ - IP58 dust proof and water resistant over 1.5 meter and 30 minutes - Also known as Sony Xperia Z Ultra HSPA+ C6802, Sony Xperia Z Ultra LTE C6806, Sony Xperia Z Ultra LTE C6833 Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass - Fast battery charging

An overview of the main advantages of each of the devices

Reasons to buy Xperia Z Ultra
  • Screen 6.4"
  • External memory microSD GB
Reasons to buy X21i
  • Screen 6.28"
  • Front camera 24 MP
  • External memory microSD GB