Vivo S1 (V1831A) vs Xiaomi Mi A2 (128GB)

Share page: Facebook Twitter WhatsApp Share page:

Side by side comparison between Vivo S1 vs Xiaomi Mi A2 phones, differences, pros, cons and full specifications. What's the better?

7/13/2019 12:22 PM, updated: 11/14/2021 11:07 AM

Compare Xiaomi Mi A2 X Vivo S1 (V1831A) 09Points

Specifications Compare Models Pictures

6.33"
IPS

1080x2340

12
MP

25mp

6GB
RAM

Octa-core

3940
mAh

(Non removable)

08Points Xiaomi Mi A2 (128GB) Compare Vivo S1 X

Specifications Compare Models Pictures

5.99"
IPS

1080x2160

12
MP

20mp

6GB
RAM

Octa-core

3000
mAh

(Non removable)

What's the better phone? Vivo S1 (V1831A)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

9 Advantages Vivo S1 (V1831A)	vs	8 Advantages Xiaomi Mi A2 (128GB)
+2.1GHz 64bit Octa-core7% More powerful processor, you can open your applications faster	vs	2.2GHz 64bit Octa-core (14nm)
+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+1080x2340 pixels8% Higher resolution screen	vs	1080x2160 pixels
+407 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	403 PPI
+6.33"6% Larger screen	vs	5.99"
+(front) 25MP24% Higher resolution secondary camera to take pictures and selfies	vs	(front) 20MP
+3940 mAh31% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3000 mAh
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C jack with 3.5mm jack adapter
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
190 grams (6.65 ounces)	vs	+166 grams (5.81 ounces)14% Lighter
8.54 millimeters (0.34 inches)	vs	+7.3 millimeters (0.29 inches)17% Thinner
(triple camera) 12MP + 8MP + 5MP	vs	+(dual camera) 12MP + 20MP28% Higher resolution main camera
LED flash	vs	+Dual-LED on main camera and LED on front cameraAdvantage The Dual-LED on main camera and LED on front camera helps in dark places or in low light
Android 9.0 Pie	vs	+Android 10Advantage Android 10 is newer and safer
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files
MicroUSB 2.0, USB OTG On-The-Go	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys

34 Common items in both devices

6GB LPDDR4X

128GB (108GB available) / 128GB (111GB available)

eMMC 5.1

TFT IPS LCD / LTPS IPS LCD

16 million

Only digital zoom

PDAF: phase detection autofocus

+27 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Change model		Choose the model
Model	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Other model names	BBK vivo S1 (China) V1831	Xiaomi Mi A2 M1804D2SG (128GB + 6GB RAM), 小米6X, Xiaomi Wayne
Country or region available	China	(Global, International), India
Brand	Vivo	Xiaomi
Release date	4/1/2019	7/27/2018, Announced: 7/24/2018
Depth	8.54 millimeters (0.34 inches)	7.3 millimeters (0.29 inches)
Size (width x height)	75.93 x 161.97 millimeters (2.99 x 6.38 in)	75.4 x 158.7 millimeters (2.97 x 6.25 in)
Weight	190 grams (6.65 ounces)	166 grams (5.81 ounces)
Build, materials	feature not registered	Aluminum body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Display type	TFT IPS LCD	LTPS IPS LCD
Screen size	6.33" inches	5.99" inches
Screen-to-body ratio	~80% (screen-to-body ratio)	~77.4% (screen-to-body ratio)
Display resolution	1080x2340 pixels	1080x2160 pixels (19:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	407 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 5
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
System version	Android 9.0 Pie	Android 8.1 Oreo
Firmware update	feature not registered	Android 10
User Interface	feature not registered	feature not registered
⚙️ Processor
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Chipset	64bit: MediaTek MT6771WT Helio P70 (12nm)	64bit: Qualcomm Snapdragon 660 (SDM660) (14nm)
CPU	Octa-core, 2 processors: 4x 2.1GHz ARM Cortex-A73 (Quad-core) 4x 2GHz ARM Cortex-A53 (Quad-core)	Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)
GPU graphical controller	ARM Mali-G72 MP3 900Mhz	Qualcomm Adreno 512 (650MHz)
Performance (benchmark)	feature not registered	AnTuTu: 130927 (v7), 172886 (v8) Geekbench: 4625 (v4.4), 1157 (v5.1) GFXBench: 8.6fps (ES 3.1 onscreen)
💽 Memory and storage
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
RAM memory	6GB LPDDR4X	6GB LPDDR4X
Internal storage	128GB (108GB available) eMMC 5.1	128GB (111GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	600/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/2100	Global version: UMTS 850/900/1700/1900/2100 India version: UMTS 850/900/1900/2100
Primary 4G network	LTE Cat7 (Bands 1, 3, 5, 8) TD-LTE (Bands 34, 38, 39, 40, 41) VoLTE	LTE Cat12 VoLTE Global version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20) TD-LTE (Bands 38, 40) India version: LTE (Bands 1, 3, 5) TD-LTE (Bands 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Back camera (main camera)	(triple camera) 12 megapixels 8MP ultrawide f/2.2 5MP depth f/2.4	(dual camera) 12 megapixels 20MP f/1.81/2.8"1.0µm
Main camera resolution	4000x3000 pixels	4000x3000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	Dual-LED on main camera and LED on front camera
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	13mm (lens)	feature not registered
Sensor size	feature not registered	1/2.9" inches
Pixel size	feature not registered	1.25µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Front camera (secondary)	25 megapixels	20 megapixels
Front camera resolution	5760x4320 pixels	5164x3872 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	LED
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	1µm pixel
🔉 Sound and multimedia
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
USB	MicroUSB 2.0, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	Type-C jack with 3.5mm jack adapter
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Not supported
Infrared port	Not supported	Supported
🧭 Sensors
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3940 mAh	3000 mAh
Charger, watts	18W Wired fast charging	18W Wired fast charging Quick Charge 4
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Ice black, Blue, Pink • 19.5:9 display ratio • Always On Display • FunTouch OS 9 • Motorized pop-up front camera	• Colors: Black, Gold, Blue, Red, Rose Gold • Android One • Back camera sensor: Sony IMX486/IMX376 • Front camera sensor: Sony IMX376 • WiFi display
☢️ Radiation rate
	Vivo S1 (V1831A)	Xiaomi Mi A2 (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.96W/kg (head), 0.64W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	1.16W/kg (head), 0.66W/kg (body)