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
IPS
1080x2340
12
MP
MP
25mp
6GB
RAM
RAM
Octa-core
3940
mAh
mAh
(Non removable)
vs
6.3"
POLED
POLED
1080x2424
48
MP
MP
13mp
8GB
RAM
RAM
Octa-core
5100
mAh
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!
6 Advantages 
28 Advantages | 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) | |
| Model | Vivo S1 (V1831A) | Pixel 9a (GTF7P 128GB) |
| Other model names | BBK vivo S1 (China) V1831 | Google Pixel 9a GTF7P |
| Country or region available |  China |  (Global, International) |
| Brand | Vivo | |
| Release date | 4/1/2019 | 4/10/2025, Announced: 3/19/2025 |
| Depth | 8.54 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) |
| Weight | 190 grams (6.65 ounces) | 186 grams (6.51 ounces) |
| Build, materials | feature not registered | Aluminum body, glass front, plastic back |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| Display type | TFT IPS LCD | P-OLED |
| Screen size | 6.33" inches | 6.3" inches |
| Screen-to-body ratio | ~80% (screen-to-body ratio) | ~83.9% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels | 1080x2424 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 407 PPI | 421 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 2700nits[peak] HDR8 Always-On Display |
🤖 Operating System | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| System version | Android 9.0 Pie | Android 15 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| Chipset | 64bit: MediaTek MT6771WT Helio P70 (12nm) | 64bit: Google Tensor G4 (4nm) |
| CPU | Octa-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 controller | ARM Mali-G72 MP3 900Mhz | ARM Mali-G715 MP7 (940MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 1030262 (v10) |
💽 Memory and storage | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| RAM memory | 6GB LPDDR4X | 8GB LPDDR5X |
| Internal storage | 128GB (108GB available) eMMC 5.1 | 128GB (101GB available) UFS 3.1 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 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) | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 300/50 Mbps | 3000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 | UMTS 800/850/900/1700/1900/2100 |
| Primary 4G network | LTE 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 network | Not supported | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 66, 75, 77, 78, 79) |
| 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, SA/NSA, Sub6 |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 800/850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | 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 |
| Secondary data network | GPRS, EDGE | GPRS, 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 resolution | 4000x3000 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.7 (aperture) |
| Focal length | 13mm (lens) | 25mm (lens) |
| Sensor size | feature not registered | 1/2" inches |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | feature not registered | 4K@30/60fps 1080p@30/60/120/240fps |
📸 Front camera | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| Front camera (secondary) | 25 megapixels | 13 megapixels |
| Front camera resolution | 5760x4320 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 20mm (lens) |
| Sensor size | feature not registered | 1/3.1" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| Loudspeaker | Supported | Stereo sound |
| Active noise cancellation | 2 microphones or more | 2 microphones |
| 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, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.3 + 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/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | feature not registered |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| Sensors | Accelerometer 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 alert | Supported | Supported |
🔋 Battery | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3940 mAh | 5100 mAh |
| Charger, watts | 18W Wired fast charging | 23W Wired fast charging USB Power Delivery 3.0 |
| Inductive / wireless charging | feature not registered | 7.5W Qi wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Vivo S1 (V1831A) | Google Pixel 9a (GTF7P 128GB) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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: 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 registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.99W/kg (head), 1.39W/kg (body) |