vivo X21 vs vivo S1 Pro Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.3 inches
6.4 inches

Resolution:

2280 x 1080 pixels, 402 PPI
2340 x 1080 pixels, 19.5:9 ratio, 404 PPI

Technology:

Super AMOLED
Super AMOLED

Screen-to-body:

85.36 %
83.45 %

Features:

Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 660 SDM660 (14 nm)
Qualcomm Snapdragon 665 SM6125 (11 nm)

Processor:

Octa-core, 2200 MHz, Kryo 260, 64-bit
Octa-core, 2000 MHz, Kryo 260, 64-bit

GPU:

Adreno 512
Adreno 610

RAM:

6GB LPDDR4
8GB

Internal storage:

128GB
128GB

Storage expansion:

microSDXC up to 256 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone

OS:

Android (8.1 Oreo), Funtouch UI
Android (9.0 Pie)

Battery

Capacity:

3200 mAh
4500 mAh

Type:

Li - Ion, Not user replaceable
Not user replaceable

Charging:

Fast charging
Fast charging

Camera

Rear:

Dual camera
Quad camera

Main camera:

12 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F1.8; Sensor size: 1/2.8"; Pixel size: 1.28 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

5 MP (Depth information)
8 MP (Ultra-wide)

Specifications:

Aperture size: F2.4
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

2 MP (Macro)

Specifications:

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm

Fourth camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Flash:

LED
LED

Video recording:

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Time-lapse video, Video calling, Video sharing

Front:

12 MP
32 MP (HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.08 x 2.94 x 0.29 inches (154.45 x 74.78 x 7.37 mm)
6.27 x 2.96 x 0.34 inches (159.25 x 75.19 x 8.68 mm)

Weight:

5.51 oz (156.2 g)
6.59 oz (186.7 g)

Materials:

Back: Aluminum; Frame: Aluminum

Biometrics:

2D Face unlock, In-screen fingerprint
In-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black
Fancy sky, Knight black, Nebula blue

Cellular

4G (FDD):

Bands 1(2100), 3(1800), 5(850)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900)

4G (TDD):

Bands 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

3G:

Bands 5(850), 8(900), 1(2100)
Bands 5(850), 8(900), 1(2100)

Data Speed:

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Shared with microSD
Shared with microSD

SIM type:

Nano SIM
Nano SIM

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
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible), USB 2.0

Features:

Charging, OTG, Mass storage device
Charging, OTG

Location:

GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other:

VoIP, Tethering, Computer sync, OTA sync

Regulatory Approval

Measured SAR:

Head:

1.18 W/kg

Body:

0.57 W/kg

Buyers information

In The Box:

Earphone, Documentation, microUSB cable, USB Power Adapter, SIM Ejector, Protective Case, Protective Film (applied)
Earphone, Documentation, USB Cable, USB Power Adapter, SIM Ejector, Protective Case, Protective Film (applied)
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