Vivo S1 (V1831A) vs Samsung Galaxy A15 5G (SM-A156B/DSN 128GB)
Side by side comparison between Vivo S1 vs Samsung Galaxy A15 5G 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
6.5"
AMOLED
AMOLED
1080x2340
50
MP
MP
13mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A15 5G (SM-A156B/DSN 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!
8 Advantages 
16 Advantages | 28 Common items in both devices |
| 128GB (108GB available) |
| 16 million |
| 1080x2340 pixels |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| EIS: Digital stabilization |
| +21 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) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Model | Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) |
| Other model names | BBK vivo S1 (China) V1831 | Galaxy A15 5G SM-A156B/Dual-SIM NFC |
| Country or region available |  China |  (Europe) |
| Brand | Vivo | Samsung |
| Release date | 4/1/2019 | 12/16/2023, Announced: 12/11/2023 |
| Depth | 8.54 millimeters (0.34 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 75.93 x 161.97 millimeters (2.99 x 6.38 in) | 76.8 x 160.1 millimeters (3.02 x 6.3 in) |
| Weight | 190 grams (6.65 ounces) | 200 grams (7 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.33" inches | 6.5" inches |
| Screen-to-body ratio | ~80% (screen-to-body ratio) | ~84.3% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 407 PPI | 396 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | 90Hz |
| Display features | feature not registered | 800nits[peak] |
🤖 Operating System | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| System version | Android 9.0 Pie | Android 14 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | One UI 6.1 |
⚙️ Processor | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Chipset | 64bit: MediaTek MT6771WT Helio P70 (12nm) | 64bit: MediaTek Dimensity 6100+ (6nm) |
| CPU | Octa-core, 2 processors: 4x 2.1GHz ARM Cortex-A73 (Quad-core) 4x 2GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | ARM Mali-G72 MP3 900Mhz | ARM Mali-G57 MC2 |
| Performance (benchmark) | feature not registered | AnTuTu: 306382 (v9), 364885 (v10) Geekbench: 1747 (v5), 1763 (v6) |
💽 Memory and storage | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| RAM memory | 6GB LPDDR4X | 4GB LPDDR4X |
| Internal storage | 128GB (108GB available) eMMC 5.1 | 128GB (108GB available) UFS 2.2 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| 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 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 Cat13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 (1, 3, 7, 8, 20, 28, 38, 40, 41, 77, 78) |
| 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 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Back camera (main camera) | (triple camera) 12 megapixels 8MP ultrawide f/2.2 5MP depth f/2.4 | (triple camera) 50 megapixels 5MP ultrawide f/2.2 2MP macro f/2.4 |
| Main camera resolution | 4000x3000 pixels | 8160x6120 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 13mm (lens) | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | PDAF: phase detection autofocus | 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 | Supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | 1080p@30fps 720p@120fps (slow motion) |
📸 Front camera | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Front camera (secondary) | 25 megapixels | 13 megapixels |
| Front camera resolution | 5760x4320 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| 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, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| 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 [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3940 mAh | 5000 mAh |
| Charger, watts | 18W Wired fast charging | 25W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | feature not registered | 44 hours (1.8 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 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: Brave Black, Optimistic Blue, Magical Blue, Personality Yellow |
☢️ Radiation rate | ||
| Vivo S1 (V1831A) | Galaxy A15 5G (SM-A156B/DSN 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.796W/kg (head), 1.461W/kg (body) |