Compare Devices
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Brand |
xiaomi | lenovo | vivo |
Model |
xiaomi redmi 7a | lenovo legion y700 (2025) | vivo x21i |
Announced |
2019 May 24 | 2024 October 16 | 2018 May |
Status |
Available. Released 2019 July 04 | Available. Released 2024 October | Available. Released 2018 May |
Device Body |
glass front | plastic back | plastic frame | glass front | aluminum frame | aluminum back | |
Dimensions |
146.3 x 70.4 x 9.6 mm ( 5.76 x 2.77 x 0.38 in ) | 208.5 x 129.5 x 7.8 mm ( 8.21 x 5.10 x 0.31 in ) | 154.4 x 75 x 7 mm ( 6.08 x 2.95 x 0.28 in ) |
Weight in gram |
165 | 350 | 159 |
SIM card |
dual SIM ( Nano-SIM | dual stand-by ) | No | Hybrid dual SIM ( Nano-SIM | dual stand-by ) |
Water Resistance |
No | No | |
Display type |
IPS LCD | IPS LCD | 165hz | dolby vision | HDR10 | 500 Luminance units ( typ ) | 900 Luminance units ( hbmillion) | Super AMOLED |
Display resolution |
720 x 1440 pixels | 18 : 9 ratio ( ~295 pixel per inch density ) | 1600 x 2560 pixels | 16 : 10 ratio ( ~343 pixel per inch density ) | 1080 x 2280 pixels | 19 : 9 ratio ( ~402 pixel per inch density ) |
Display size |
5.45 inches | 76.7 cm2 ( ~74.4% screen to body ratio ) | 8.8 inches | 224.5 cm2 ( ~83.2% screen to body ratio ) | 6.28 inches | 98.4 cm2 ( ~85.0% screen to body ratio ) |
Display Protection |
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Operating System |
android 9.0 ( pie ) | upgradable to android 10 | miui 12 | android 14 | up to 3 major android upgrades | android 8.1 ( oreo ) | funtouch 4 |
CPU |
Octa-core ( 4x1.95 GHz cortex-a53 & 4x1.45 GHz Cortex a53 ) | Octa-core ( 1x3.3 GHz cortex-x4 & 3x3.2 GHz cortex-a720 & 2x3.0 GHz cortex-a720 & 2x2.3 GHz cortex-a520 ) | Octa-core ( 4x2.0 GHz cortex-a73 & 4x2.0 GHz cortex-a53 ) |
Chipset |
Qualcomm sdm439 snapdragon 439 ( 12 nm ) | Qualcomm sm8650-ab snapdragon 8 generation 3 ( 4 nm ) | mediatek mt6771 helio p60 ( 12 nm ) |
GPU |
adreno 505 | adreno 750 | mali-g72 mp3 |
Memory card |
microsdxc ( dedicated slot ) | No | microsdxc ( uses shared sim slot ) |
Memory v1 |
16gb 2gb RAM | 256gb 12gb RAM | 64gb 6gb RAM |
Memory v2 |
32gb 2gb RAM | 32gb 3gb RAM | 512gb 16gb RAM | 128gb 4gb RAM |
Primary camera |
13 megapixel| lens aperture2.2 | 1/3.1" | 1.12µm | phase detection autofocus - china |
13 megapixel| ( wide ) 2 megapixel| ( macro ) |
12 megapixel| lens aperture1.8 | 1/2.55" | 1.4µm | Dual Pixel phase detection autofocus 5 megapixel| lens aperture2.4 | ( depth ) |
Secondary camera |
5 megapixel| lens aperture2.2 | 1/5" | 1.12µm |
8 mega pixel |
24 megapixel| lens aperture2.0 | 26mm ( wide ) | 1/2.8" | 0.9µm |
Loud speaker |
Yes | Yes with stereo speakers | Yes |
Audio jack |
Yes | No | Yes |
WLAN |
Wi-Fi 802.11 b/g/n | Wi-Fi Direct | hotspot | Wi-Fi 802.11 a/b/g/n/ac/6/7 | dual-band or tri-band | Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot |
Bluetooth |
4.2 | a2dp | le | 5.4 | a2dp | le | 5.0 | a2dp | le |
GPS |
Yes with a-gps glonass bds | Yes with a-gps glonass | |
NFC |
No | No | No |
Radio |
FM Radio | built-in antenna | unspecified | FM Radio |
USB |
microusb 2.0 | USB on-the-go | 1x USB Type-C & 1x USB Type-C 3.1.0 gen2 | displayport 1.0.4 | microusb 2.0 | USB on-the-go |
Sensors |
accelerometer | proximity | compass | accelerometer | gyroscope | proximity | compass | fingerprint ( rear-mounted ) | accelerometer | proximity | compass |
Battery |
li-po 4000 mAh | Non-removable | li-po 6550 mAh | Li-lon 3425 mAh | Non-removable |
Battery Charge |
charging 10w - Chinese version | 68w wired | bypass charging | |
Colors |
black, blue color gradations, blue, gold, red color gradations, blue color gradations | black color gradations | black, white color gradations, red color gradations, purple color gradations |
Network technology |
gsm / hspa / lte | No cellular connectivity | gsm / cdma / hspa / lte |
5G bands |
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Network speed |
hspa 42.2/5.76 mbps lte-a | hspa 42.2/5.76 mbps lte | |
GPRS |
No | ||
EDGE |
No | ||
Approx price |
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80 GBP
102 EUR
950 NOK
1000 SEK
6200 RUB
100 USD
520 BRL
140 AUD
130000 KRW
14000 JPY
140 SGD
440 MYR
360 AED
1700 ZAR
