Vivo S1 (V1831A) vs Xiaomi Mi 11 Ultra (256GB/12GB)
Side by side comparison between Vivo S1 vs Xiaomi Mi 11 Ultra 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
6.81"
AMOLED
AMOLED
1440x3200
50
MP
MP
20mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Mi 11 Ultra (256GB/12GB)
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 | 16 Common items in both devices |
| PDAF: phase detection autofocus |
| HDR photo on both cameras / HDR photo/video on both cameras |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Compass |
| +9 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) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| Model | Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) |
| Other model names | BBK vivo S1 (China) V1831 | Xiaomi Mi 11 Ultra (256GB + 12GB RAM) |
| Country or region available |  China |  (Global, International) |
| Brand | Vivo | Xiaomi |
| Release date | 4/1/2019 | 4/2/2021, Announced: 3/29/2021 |
| Depth | 8.54 millimeters (0.34 inches) | 8.38 millimeters (0.33 inches) |
| Size (width x height) | 75.93 x 161.97 millimeters (2.99 x 6.38 in) | 74.6 x 164.3 millimeters (2.94 x 6.47 in) |
| Weight | 190 grams (6.65 ounces) | 234 grams (8.19 ounces) |
| Build, materials | feature not registered | Aluminum body, glass front, ceramic 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) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| Display type | TFT IPS LCD | AMOLED |
| Screen size | 6.33" inches | 6.81" inches |
| Screen-to-body ratio | ~80% (screen-to-body ratio) | ~91.4% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels | 1440x3200 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 407 PPI | 515 PPI |
| Colors | 16 million | 1 billion |
| Scratch-resistant glass | Not supported | Gorilla Glass Victus |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 1700nits[peak] Dolby Vision/HDR10+ |
🤖 Operating System | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| System version | Android 9.0 Pie | Android 11 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| Chipset | 64bit: MediaTek MT6771WT Helio P70 (12nm) | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) |
| 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 2.84GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core) |
| GPU graphical controller | ARM Mali-G72 MP3 900Mhz | Qualcomm Adreno 660 (840MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| RAM memory | 6GB LPDDR4X | 12GB LPDDR5 |
| Internal storage | 128GB (108GB available) eMMC 5.1 | 256GB (230GB available) UFS 3.1 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| 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 | 3500/1024 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 | CDMA 800, GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/2100 | CDMA2000 1xEV-DO 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 Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 66) TD-LTE (38, 40, 41, 42) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) |
| Primary 5G network | Not supported | Global version: SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 79) China version: SA/NSA (1, 3, 28, 41, 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, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| 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 11 Ultra (256GB/12GB) | |
| Back camera (main camera) | (triple camera) 12 megapixels 8MP ultrawide f/2.2 5MP depth f/2.4 | (triple camera) 50 megapixels 48MP periscope telephoto f/4.1120mm1/2.0"0.8µmPDAFOIS5x-optical-zoom 48MP ultrawide f/2.212mm128°1/2.0"0.8µmPDAF |
| Main camera resolution | 4000x3000 pixels | 8160x6120 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 24 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 13mm lens | 24mm lens |
| Sensor size | feature not registered | 1/1.12" inches |
| Pixel size | feature not registered | 1.4µm 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 | Digital and optical 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 | feature not registered |
📸 Front camera | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| Front camera (secondary) | 25 megapixels | 20 megapixels |
| Front camera resolution | 5760x4320 pixels | 5184x3840 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 | 27mm lens |
| Sensor size | feature not registered | 1/3.4" inches |
| Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| 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, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C jack with 3.5mm jack adapter |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.2 + 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 [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| 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 | 67W Wired fast charging Quick Charge 4+ USB Power Delivery 3.0 |
| Inductive / wireless charging | feature not registered | 67W Qi wireless charging 10W Reverse wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| 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: Ceramic black, Ceramic white • MIUI 12.5 • Screen protector included • Protective case included • 24-bit/192kHz audio • Tuned by Harman Kardon • Secondary 1.1" AMOLED display next to the rear camera |
☢️ Radiation rate | ||
| Vivo S1 (V1831A) | Xiaomi Mi 11 Ultra (256GB/12GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |