vivo Y91 vs Xiaomi Redmi 9A
Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone specs comparison tool or pick a popular device from the ones below.
Display
Size
Resolution
Technology
IPS LCD
IPS LCD
Screen-to-body
82.76 %
81.15 %
Features
Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware
System chip
MediaTek Helio P22 MT6762
MediaTek Helio G25
Processor
GPU
IMG PowerVR GE8320
PowerVR GE8320
RAM
Internal storage
32GB
32GB (eMMC 5.1)
Storage expansion
microSDXC up to 256 GB
microSDXC
OS
Android (8.1 Oreo), Funtouch UI
Android (10)
Battery
Capacity
4030 mAh
5000 mAh
Type
Not user replaceable
Li - Polymer, Not user replaceable
Max charge speed
Wired: 10.0W
Camera
Rear
Dual camera
Single camera
Main camera
Specifications
Aperture size: F2.2
Second camera
2 MP (Depth information)
Specifications
Aperture size: F2.4
Video recording
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (60 fps)
Features
Time-lapse video, Video calling, Video sharing
Front
8 MP
5 MP (HDR)
Design
Dimensions
Weight
the average is 6.2 oz (178 g)
the average is 6.2 oz (178 g)
Materials
Back: Plastic
Materials & Colors
Carbon grey, Sky blue, Ocean green
Biometrics
Fingerprint (touch)
2D Face unlock
Colors
Black, Blue
Cellular
LTE (FDD)
Bands 1(2100), 3(1800), 5(850)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
LTE (TDD)
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
UMTS
850, 900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data Speed
Dual SIM
Yes
Yes
SIM type
Nano SIM
Nano SIM
HD Voice
Yes
VoLTE
Yes
Multimedia
Headphones
3.5mm jack
3.5mm jack
Speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
FM
Additional microphone(s)
for Noise cancellation
Connectivity & Features
Bluetooth
5.0
5.0
Wi-Fi
802.11 b, g, n; Hotspot, Wi-Fi Direct
802.11 b, g, n; Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0
microUSB, USB 2.0
Features
Mass storage device, OTG, Charging
Charging
Location
GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass
Accelerometer
Other
VoIP, Tethering, Computer sync, OTA sync
Phone features
Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording
Regulatory Approval
Measured SAR
Head
1.28 W/kg
Body
0.61 W/kg
Buyers information
In The Box
Documentation, micro USB to USB cable, USB power adapter, SIM ejector, Protective case, Protective film (applied)
Power adapter, 5V2A Charger, Micro-USB cable, SIM eject tool, Warranty card, User guide
