Vivo Y91 vs Xiaomi Redmi 6A vs Xiaomi Redmi 4 Prime vs Xiaomi Redmi Note 4 comparison
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key specs |
Display | 6.22-inch | 5.45-inch | 5.00-inch | 5.50-inch |
Processor | MediaTek Helio P22 | MediaTek Helio A22 | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 |
Front Camera | 8-megapixel | 5-megapixel | 5-megapixel | 5-megapixel |
Rear Camera | 13-megapixel + 2-megapixel | 13-megapixel | 13-megapixel | 13-megapixel |
RAM | 2GB | 2GB | 3GB | 4GB |
Storage | 32MB | 16GB | 32GB | 64GB |
Battery Capacity | 4030mAh | 3000mAh | 4100mAh | 4100mAh |
OS | Android 8.1 | Android 8.1 Oreo | Android 6.0 | Android 6.0 |
Resolution | 720x1520 pixels | 720x1440 pixels | 1080x1920 pixels | 1080x1920 pixels |
general |
Brand | Vivo | Xiaomi | Xiaomi | Xiaomi |
Model | Y91 | Redmi 6A | Redmi 4 Prime | Redmi Note 4 |
Release date | January 1, 2019 | June 1, 2018 | November 1, 2016 | August 1, 2016 |
Launched in India | Yes | Yes | - | Yes |
Form factor | Touchscreen | Touchscreen | Touchscreen | Touchscreen |
Dimensions (mm) | 155.11 x 75.09 x 8.28 | 147.50 x 71.50 x 8.30 | 141.30 x 69.60 x 8.90 | 151.00 x 76.00 x 8.30 |
Weight (g) | 163.50 | 145.00 | 156.00 | 175.00 |
Battery capacity (mAh) | 4030 | 3000 | 4100 | 4100 |
Colours | Starry Black, Ocean Blue | Blue, Gold, Rose Gold, Black | Gold, Grey, Silver | Gold, Grey, Matte Black |
Body type | - | Plastic | - | - |
Removable battery | - | No | No | No |
Wireless charging | - | No | - | - |
display |
Screen size (inches) | 6.22 | 5.45 | 5.00 | 5.50 |
Touchscreen | Yes | Yes | Yes | Yes |
Resolution | 720x1520 pixels | 720x1440 pixels | 1080x1920 pixels | 1080x1920 pixels |
Aspect ratio | - | 18:9 | - | 16:9 |
Pixels per inch (PPI) | - | 295 | 443 | 401 |
hardware |
Processor | octa-core | 2GHz quad-core (4x2GHz) | 2GHz octa-core | 2GHz octa-core |
Processor make | MediaTek Helio P22 (MT6762R) | MediaTek Helio A22 (MT6761) | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 625 |
RAM | 2GB | 2GB | 3GB | 4GB |
Internal storage | 32MB | 16GB | 32GB | 64GB |
Expandable storage | Yes | Yes | Yes | Yes |
Expandable storage type | microSD | microSD | microSD | microSD |
Expandable storage up to (GB) | 256 | 256 | 128 | 128 |
Dedicated microSD slot | Yes | Yes | - | - |
camera |
Rear camera | 13-megapixel (f/f/2.2) + 2-megapixel (f/f/2.4) | 13-megapixel (f/2.2) | 13-megapixel | 13-megapixel (f/2.0, 1.12-micron) |
Rear flash | LED | LED | Dual LED | Dual LED |
Front camera | 8-megapixel (f/f/1.8) | 5-megapixel | 5-megapixel | 5-megapixel (f/2.0) |
Front flash | No | No | - | - |
Rear autofocus | - | Phase detection autofocus | - | Phase detection autofocus |
software |
Operating system | Android 8.1 | Android 8.1 Oreo | Android 6.0 | Android 6.0 |
Skin | Funtouch OS 4.5 | MIUI 9.6 | MIUI 8 | MIUI 8 |
connectivity |
Wi-Fi | Yes | Yes | Yes | Yes |
Bluetooth | Yes, v 5.00 | Yes, v 4.20 | Yes, v 4.20 | Yes, v 4.10 |
NFC | No | No | No | No |
Micro-USB | Yes | Yes | - | Yes |
Headphones | 3.5mm | 3.5mm | 3.5mm | 3.5mm |
Number of SIMs | 2 | 2 | 2 | 2 |
Active 4G on both SIM cards | Yes | Yes | - | - |
Wi-Fi standards supported | - | 802.11 b/g/n | 802.11 a/b/g/n | 802.11 a/b/g/n |
GPS | - | Yes | Yes | Yes |
Infrared | - | No | No | Yes |
USB OTG | - | Yes | No | Yes |
USB Type-C | - | No | - | - |
FM | - | Yes | No | Yes |
Wi-Fi Direct | - | - | No | No |
Mobile High-Definition Link (MHL) | - | - | No | No |
sim 1 |
SIM Type | Nano-SIM | Nano-SIM | Micro-SIM | Micro-SIM |
GSM/CDMA | GSM | GSM | GSM | GSM |
3G | Yes | Yes | Yes | Yes |
4G/ LTE | Yes | Yes | Yes | Yes |
sim 2 |
SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | Nano-SIM |
GSM/CDMA | GSM | GSM | GSM | GSM |
3G | Yes | Yes | Yes | Yes |
4G/ LTE | Yes | Yes | Yes | Yes |
sensors |
Face unlock | Yes | Yes | - | - |
Fingerprint sensor | Yes | No | - | Yes |
Compass/ Magnetometer | Yes | Yes | No | Yes |
Proximity sensor | Yes | Yes | Yes | Yes |
Accelerometer | Yes | Yes | Yes | Yes |
Ambient light sensor | Yes | Yes | Yes | Yes |
Gyroscope | Yes | No | Yes | Yes |
Barometer | - | - | No | No |
Temperature sensor | - | - | No | No |
ratings |
Overall NDTV Rating | - | Read Review | - | Read Review |
Design Rating | - | | - | |
Display Rating | - | | - | |
Software Rating | - | | - | |
Performance Rating | - | | - | |
Battery Life Rating | - | | - | |
Camera Rating | - | | - | |
Value for Money Rating | - | | - | |