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Vivo S1 (V1831A) vs Google Pixel 9a (GTF7P 128GB)

Side by side comparison between Vivo S1 vs Google Pixel 9a phones, differences, pros, cons and full specifications. What's the better?

,
6.33"
IPS

1080x2340

12
MP

25mp

6GB
RAM

Octa-core

3940
mAh

(Non removable)

vs
28Points Google Pixel 9a (GTF7P 128GB) Compare Vivo S1 X
6.3"
POLED

1080x2424

48
MP

13mp

8GB
RAM

Octa-core

5100
mAh

(Non removable)

What's the better phone? Google Pixel 9a (GTF7P 128GB)

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!

S1 (V1831A)} 6 Advantages Vivo S1 (V1831A) vs Pixel 9a (GTF7P 128GB)} 28 Advantages Google Pixel 9a (GTF7P 128GB)
+Until 256GB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+8.54 millimeters (0.34 inches)4%
Thinner
vs8.9 millimeters (0.35 inches)
+6.33"1%
Larger screen
vs6.3"
+(front) 25MP95%
Higher resolution secondary camera to take pictures and selfies
vs(front) 13MP
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
2.1GHz 64bit Octa-corevs+3.1GHz 64bit Octa-core (4nm)35%
More powerful processor, you can open your applications faster
6GB LPDDR4Xvs+8GB LPDDR5X33%
More RAM memory. Typically more responsive and better for multitasking.
eMMC 5.1vs+UFS 3.1Advantage
Fastest write and read storage.
190 grams (6.65 ounces)vs+186 grams (6.51 ounces)2%
Lighter
TFT IPS LCDvs+P-OLEDAdvantage
P-OLED display is brighter and more vivid
1080x2340 pixelsvs+1080x2424 pixels4%
Higher resolution screen
407 PPIvs+421 PPI3%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
(triple camera) 12MP + 8MP + 5MPvs+(dual camera) 48MP + 13MP144%
Higher resolution main camera
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
EIS: Digital stabilizationvs+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
Not supportedvs+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
f/1.8 (aperture)vs+f/1.7 (aperture)6%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
Android 9.0 Pievs+Android 15Advantage
Android 15 is newer and safer
4G LTE-Avs+5G Sub6Advantage
The 5G Sub6 network is newer and faster
(4G LTE-A) 300 Mbpsvs+(5G Sub6) 3000 Mbps9 times
Faster for surfing the internet and download files
Not supportedvs+BarometerAdvantage
Sensors help you use the device
3940 mAhvs+5100 mAh29%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18Wvs+23W28%
More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
2 slots (Dual-SIM)
(dedicated slot)
vs+1 slot (Single-SIM) + e-SIM (Eletronic)Advantage
You can have more mobile carriers/operators on the same device.
802.11 a/b/g/n/ac [wifi5]vs+802.11 a/b/g/n/ac/ax [wifi6E/6]Advantage
WiFi 802.11 a/b/g/n/ac/ax [wifi6E/6] is newer and faster
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
5.0 + A2DP/LEvs+5.3 + A2DP/LEAdvantage
Bluetooth 5.3 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0, USB OTG On-The-Govs+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
MicroUSB 2.0, USB OTG On-The-Govs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supportedvs+Gorilla Glass 3Advantage
Protection against scratches on the screen lets you carry your phone with your keys
Not supportedvs+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

21 Common items in both devices
128GB (108GB available) / 128GB (101GB available)
16 million
Only digital zoom
PDAF: phase detection autofocus
HDR photo on both cameras / HDR photo/video on both cameras
4K UHD (3840x2160)
Capacitive
+14 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 Clear highlight

📱 Model features

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
ModelVivo S1 (V1831A)Pixel 9a (GTF7P 128GB)
Other model namesBBK vivo S1 (China) V1831Google Pixel 9a GTF7P
Country or region availableChina
China
(Global, International)
(Global, International)
BrandVivoGoogle
Release date4/1/20194/10/2025, Announced: 3/19/2025
Depth8.54 millimeters (0.34 inches)8.9 millimeters (0.35 inches)
Size (width x height)75.93 x 161.97 millimeters (2.99 x 6.38 in)73.3 x 154.7 millimeters (2.89 x 6.09 in)
Weight190 grams (6.65 ounces)186 grams (6.51 ounces)
Build, materialsfeature not registeredAluminum body, glass front, plastic back
Protection against water and othersNot supportedIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

📲 Display

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
Display typeTFT IPS LCDP-OLED
Screen size6.33" inches6.3" inches
Screen-to-body ratio~80% (screen-to-body ratio)~83.9% (screen-to-body ratio)
Display resolution1080x2340 pixels1080x2424 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)407 PPI421 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass 3
Refresh ratefeature not registered120Hz
Display featuresfeature not registered2700nits[peak]
HDR8
Always-On Display

🤖 Operating System

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
System versionAndroid 9.0 PieAndroid 15
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
Chipset64bit: MediaTek MT6771WT Helio P70 (12nm)64bit: Google Tensor G4 (4nm)
CPUOcta-core, 2 processors:
4x 2.1GHz ARM Cortex-A73 (Quad-core)
4x 2GHz ARM Cortex-A53 (Quad-core)
Octa-core, 3 processors:
1x 3.1GHz ARM Cortex-X4 (Single-core)
3x 2.6GHz ARM Cortex-A720 (Triple-core)
4x 1.92GHz ARM Cortex-A520 (Quad-core)
GPU graphical controllerARM Mali-G72 MP3 900MhzARM Mali-G715 MP7 (940MHz)
Performance (benchmark)feature not registeredAnTuTu: 1030262 (v10)

💽 Memory and storage

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
RAM memory6GB LPDDR4X8GB LPDDR5X
Internal storage128GB (108GB available)
eMMC 5.1
128GB (101GB available)
UFS 3.1
External storageUntil 256GB microSD, microSDXC
(dedicated slot)
Not supported

📶 Mobile networks

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-SIM Standby - Call active on one sim card
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM
Maximum Download / Upload300/50 Mbps3000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkCDMA 800, GSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/2100
UMTS 800/850/900/1700/1900/2100
Primary 4G networkLTE Cat7 (Bands 1, 3, 5, 8)
TD-LTE (Bands 34, 38, 39, 40, 41)
VoLTE
LTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 14, 17, 18, 19, 20, 21, 26, 28, 32, 66, 75)
TD-LTE (38, 39, 40, 41, 42)
VoLTE
Primary 5G networkNot supportedSA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 66, 75, 77, 78, 79)
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 800/850/900/1700/1900/2100
Secondary 4G networkNot supportedLTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 14, 17, 18, 19, 20, 21, 26, 28, 32, 66, 75)
TD-LTE (38, 39, 40, 41, 42)
VoLTE
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6

📷 Camera

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
Back camera (main camera)(triple camera)
12 megapixels
8MP ultrawide f/2.2
5MP depth f/2.4
(dual camera)
48 megapixels
13MP ultrawide f/2.2120°1/3.1"1.12µm
Main camera resolution4000x3000 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 60 fps
FlashLED flashDual-LED flash
Focal aperturef/1.8 (aperture)f/1.7 (aperture)
Focal length13mm (lens)25mm (lens)
Sensor sizefeature not registered1/2" inches
Pixel sizefeature not registered0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
Camera extrasfeature not registered4K@30/60fps
1080p@30/60/120/240fps

📸 Front camera

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
Front camera (secondary)25 megapixels13 megapixels
Front camera resolution5760x4320 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.2 (aperture)
Focal lengthfeature not registered20mm (lens)
Sensor sizefeature not registered1/3.1" inches
Pixel sizefeature not registered1.12µm pixel

🔉 Sound and multimedia

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
LoudspeakerSupportedStereo sound
Active noise cancellation2 microphones or more2 microphones
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
USBMicroUSB 2.0, USB OTG On-The-GoUSB 3.2 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputNot supportedUSB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.3 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, BeiDoufeature not registered
NFCNot supportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Barometer
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity3940 mAh5100 mAh
Charger, watts18W Wired fast charging23W Wired fast charging
USB Power Delivery 3.0
Inductive / wireless chargingfeature not registered7.5W Qi wireless charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Ice black, Blue, Pink
• 19.5:9 display ratio
• Always On Display
• FunTouch OS 9
• Motorized pop-up front camera
• Colors: Obsidian, Porcelain, Iris, Peony
• Google Cast

☢️ Radiation rate

Vivo S1 (V1831A)Google Pixel 9a (GTF7P 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered0.99W/kg (head), 1.39W/kg (body)
X

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