Compare Devices
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Brand | xiaomi | lenovo | samsung |
Model | xiaomi redmi pad | lenovo vibe x3 | samsung galaxy a21s |
Announced | 2022 October 04 | 2015 November. Released 2015 December | 2020 May 15 |
Status | Available. Released 2022 October 05 | discontinued | Available. Released 2020 June 02 |
Device Body | glass front | aluminum frame | glass front | plastic frame | plastic back | |
Dimensions | 250.5 x 158.1 x 7.1 mm ( 9.86 x 6.22 x 0.28 in ) | 154 x 76.5 x 9.3 mm ( 6.06 x 3.01 x 0.37 in ) | 163.7 x 75.3 x 8.9 mm ( 6.44 x 2.96 x 0.35 in ) |
Weight in gram | 465 | 175 | 192 |
SIM card | No | Hybrid dual SIM ( Nano-SIM | dual stand-by ) | single SIM ( Nano-SIM ) or dual SIM ( Nano-SIM | dual stand-by ) |
Water Resistance | No | No | No |
Display type | IPS LCD | 1b colors | 90hz | 400 Luminance units ( typ ) | IPS LCD | pls LCD |
Display resolution | 1200 x 2000 pixels | 5 : 3 ratio ( ~220 pixel per inch density ) | 1080 x 1920 pixels | 16 : 9 ratio ( ~401 pixel per inch density ) | 720 x 1600 pixels | 20 : 9 ratio ( ~270 pixel per inch density ) |
Display size | 10.61 inches | 320.4 cm2 ( ~80.9% screen to body ratio ) | 5.5 inches | 83.4 cm2 ( ~70.8% screen to body ratio ) | 6.5 inches | 102.0 cm2 ( ~82.8% screen to body ratio ) |
Display Protection | corning gorilla glass 3 | ||
Operating System | android 12 | upgradable to android 13 | miui 14 | android 5.1 ( lollipop ) | android 10 | upgradable to android 12 | one ui 4.1 |
CPU | Octa-core ( 2x2.2 GHz cortex-a76 & 6x2.0 GHz cortex-a55 ) | Hexa-core ( 4x1.4 GHz cortex-a53 & 2x1.8 GHz cortex-a57 ) | Octa-core ( 4x2.0 GHz cortex-a55 & 4x2.0 GHz cortex-a55 ) |
Chipset | mediatek helio g99 ( 6nm ) | Qualcomm msm8992 snapdragon 808 ( 20 nm ) | exynos 850 ( 8nm ) |
GPU | mali-g57 mc2 | adreno 418 | mali-g52 |
Memory card | microsdxc | microsdxc ( dedicated slot ) | |
Memory v1 | 64gb 3gb RAM | 32gb 3gb RAM | 32gb 2gb RAM |
Memory v2 | 128gb 4gb RAM | 128gb 6gb RAM | 64gb 3gb RAM | 32gb 3gb RAM | 32gb 4gb RAM | 64gb 3gb RAM | 64gb 4gb RAM | 64gb 6gb RAM | 128gb 3gb RAM | 128gb 4gb RAM | 128gb 6gb RAM |
Primary camera | 8 megapixel| lens aperture2.0 | ( wide ) | Auto focus | 21 megapixel| lens aperture2.0 | 27mm ( wide ) | phase detection autofocus | 48 megapixel| lens aperture2.0 | 26mm ( wide ) | 1/2.0" | 0.8µm | phase detection autofocus 8 megapixel| lens aperture2.2 | 123˚ ( ultrawide ) | 1/4.0" | 1.12µm 2 megapixel| lens aperture2.4 | ( macro ) 2 megapixel| lens aperture2.4 | ( depth ) |
Secondary camera | 8 megapixel| lens aperture2.3 | 105° ( ultrawide ) | 8 mega pixel | 13 megapixel| lens aperture2.2 | ( wide ) | 1/3.1" | 1.12µm |
Loud speaker | Yes with stereo speakers ( 4 speakers ) | Yes with stereo speakers | Yes |
Audio jack | No | Yes | Yes |
WLAN | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac | Wi-Fi Direct | hotspot | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct |
Bluetooth | 5.2 | a2dp | le | 4.1.0 | a2dp | le | 5.0 | a2dp | le |
GPS | Yes with a-gps glonass | ||
NFC | No | Yes | Yes ( market/region dependent ) |
Radio | No | FM Radio | FM Radio | rds | recording |
USB | USB Type-C | otg | microusb 2.0 | USB Type-C 2.0 |
Sensors | accelerometer | fingerprint ( rear-mounted ) | accelerometer | gyroscope | proximity | compass | fingerprint ( rear-mounted ) | accelerometer | gyroscope | proximity | compass |
Battery | li-po 8000 mAh | Non-removable | li-po 3500 mAh | Non-removable | li-po 5000 mAh | Non-removable |
Battery Charge | 18w wired | Fast charging 18w - market dependent | quick charge 2.0.0 | 15w wired |
Colors | graphite color color gradations, silver color gradations, green color gradations | white, black | black, white, blue, red |
Network technology | No cellular connectivity | gsm / hspa / lte | gsm / hspa / lte |
5G bands | |||
Network speed | hspa 42.2/5.76 mbps lte-a (2ca) cat6 300/50 mbps | hspa lte-a | |
GPRS | n/a | ||
EDGE | n/a | ||
Approx price |
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