vivo Y91 vs Samsung Galaxy A21 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

vivo Y91 Samsung Galaxy A21
Released · Jan 15, 2019
Released · Jun 29, 2020
6.2-inch · 1520x720px
6.5-inch · 1600x720px
Dual camera
Quad camera
2GB · 32GB
3GB · 32GB
4030 mAh
4000 mAh

Availability

Officially announced
Apr 08, 2020
Prices (MSRP)
$250

Design

Dimensions
6.11 x 2.96 x 0.33 inches
155.11 x 75.09 x 8.28 mm
6.61 x 3.02 x 0.32 inches
167.8 x 76.7 x 8.1 mm
Weight
5.77 oz / 163.5 g 6.81 oz / 193.0 g
Materials
Back: Plastic
Frame: Plastic
Biometrics
Fingerprint (touch) Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Black, Blue Black

Display

Size
6.2-inch, 82.76% screen-to-body 6.5-inch, 79.20% screen-to-body
Type
IPS LCD IPS LCD, 60Hz
Resolution
1520x720px, 270 PPI 1600x720px, 20:9 ratio, 270 PPI
Colors
16 777 216

Hardware

System chip
MediaTek Helio P22 MT6762 (12 nm) Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core
2000 MHz
ARM Cortex-A53
Octa-core
4x2.3GHz Cortex-A53
4x1.8G​Hz Cortex-A53
GPU
IMG PowerVR GE8320 PowerVR GE8320
Memory
2GB/32GB 3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
microSDXC up to 256 GB microSDXC up to 512 GB
OS
Android (8.1 Oreo) Android (10)

Battery

Type
4030 mAh 4000 mAh, Li - Polymer
Charging
Fast charging
Charge speed
Wired: 15.0W

Camera

Rear
Dual camera Quad camera
Main camera
13 MP (PDAF)
Aperture size: F2.2
16 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3.06"
Pixel size: 1 μm
Second camera
2 MP (Depth information)
Aperture size: F2.4
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
2 MP (Macro)
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
1080p (30 fps)
Time-lapse video, Video calling, Video sharing
1080p (30 fps)
Front
8 MP 13 MP
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
b,g,n
Hotspot, Wi-Fi Direct
802.11 b, g, n
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
microUSB, USB 2.0 Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M4/T3
Location
GPS, A-GPS, Glonass, BeiDou GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Other
VoIP, Tethering, Computer sync, OTA sync NFC

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)
Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
4G (TDD) Bands
38, 40, 41 38, 39, 40, 41
3G Bands
5, 8, 1 1, 2, 4, 5, 8
Data Speed
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM Nano SIM
HD Voice
Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Apr 17, 2020
FCC ID value: ZCASMA215U
Measured SAR
Head: 1.28 W/kg
Body: 0.61 W/kg
Head: 0.42 W/kg
Body: 1.27 W/kg
Simultaneous Transmission: 1.27 W/kg
Wireless Router: 1.27 W/kg

Alternative variants

for Verizon
4G (FDD) Bands 1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands 38, 40, 41
3G Bands 5, 8, 2, 1
for Sprint
4G (FDD) Bands 2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
4G (TDD) Bands 41
FCC OKs Cingular\'s purchase of AT&T Wireless