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Brand | vivo | blu | |
Model | vivo y21s | blu tank xtreme 4.0 | |
Announced | 2021 September 21 | 2017 January | |
Status | Available. Released 2021 September 21 | Available. Released 2017 January | |
Device Body | |||
Dimensions | 164.3 x 76.1 x 8 mm ( 6.47 x 3.00 x 0.31 in ) | 130 x 69 x 13.9 mm ( 5.12 x 2.72 x 0.55 in ) | |
Weight in gram | 182 | 141 | |
SIM card | dual SIM ( Nano-SIM | dual stand-by ) | dual SIM ( Micro-SIM ) | |
Water Resistance | No | ||
Display type | IPS LCD | IPS LCD capacitive touchscreen 16millioncolors | |
Display resolution | 720 x 1600 pixels | 20 : 9 ratio ( ~270 pixel per inch density ) | 480 x 800 pixels | 5 : 3 ratio ( ~233 pixel per inch density ) | |
Display size | 6.51 inches | 102.3 cm2 ( ~81.8% screen to body ratio ) | 4.0 inches | 45.5 cm | |
Display Protection | |||
Operating System | android 11 | funtouch 11.1 | android 6.0 ( marshmallow ) | |
CPU | Octa-core ( 2x2.0 GHz cortex-a75 & 6x1.8 GHz cortex-a55 ) | Quad-core 1.3 GHz cortex-a7 | |
Chipset | mediatek mt6769v/cu helio g80 ( 12 nm ) | mediatek mt6580 ( 28 nm ) | |
GPU | mali-g52 mc2 | mali-400mp2 | |
Memory card | microsdxc ( dedicated slot ) | microSD up to 64 GB | |
Memory v1 | 128gb 4gb RAM | 4gb 512mb RAM | |
Memory v2 | 128gb 6gb RAM | ||
Primary camera | 50 megapixel| lens aperture1.8 | 24mm ( wide ) | phase detection autofocus 2 megapixel| lens aperture2.4 | ( macro ) 2 megapixel| lens aperture2.4 | ( depth ) | 3.15 mega pixel | |
Secondary camera | 8 megapixel| lens aperture2.0 | ( wide ) | 2 mega pixel | |
Loud speaker | Yes | Yes | |
Audio jack | Yes | Yes | |
WLAN | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | Wi-Fi 802.11 b/g/n | hotspot | |
Bluetooth | 5.0 | a2dp | le | 4.0 | a2dp | |
GPS | Yes with a-gps | ||
NFC | Yes ( market/region dependent ) | ||
Radio | FM Radio | FM Radio | |
USB | USB Type-C 2.0 | otg | microusb 2.0 | |
Sensors | fingerprint ( side-mounted ) | accelerometer | proximity | compass | accelerometer | |
Battery | li-po 5000 mAh | Non-removable | Non-removable li-po 2800 mAh battery | |
Battery Charge | 18w wired | 2.0.5w reverse wired | ||
Colors | blue color gradations, white color gradations | blue | |
Network technology | gsm / hspa / lte | gsm / hspa | |
5G bands | |||
Network speed | hspa lte | hspa 21.1/5.76 mbps | |
GPRS | |||
EDGE | |||
Approx price | |||

