Vivo S1 (V1907) vs Alcatel OT-991D (Dual-sim)
Side by side comparison between Vivo S1 vs Alcatel OT-991 phones, differences, pros, cons and full specifications. What's the better?
,
6.38"
AMOLED
AMOLED
1080x2340
16
MP
MP
32mp
4GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
4"
TFT
TFT
320x480
3.1
MP
MP
0.3mp
256MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
What's the better phone? Vivo S1 (V1907)
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!
24 Advantages 
1 Advantage | 15 Common items in both devices |
| LED flash |
| Only digital zoom |
| Capacitive |
| Multitouch |
| Accelerometer |
| Compass |
| Proximity sensor |
| +8 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 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Model | Vivo S1 (V1907) | OT-991D (Dual-sim) |
| Other model names | BBK vivo S1 V1907 (Global) | Alcatel One Touch 991D Dual-sim, Alcatel 991 |
| Country or region available |    India, Indonesia, (Global, International) | feature not registered |
| Brand | Vivo | Alcatel |
| Release date | 7/16/2019 | 9/1/2012 |
| Depth | feature not registered | 10.8 millimeters (0.43 inches) |
| Size (width x height) | feature not registered | 68 x 122 millimeters (2.68 x 4.8 in) |
| Weight | feature not registered | 131 grams (4.59 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Display type | Super AMOLED | TFT LCD |
| Screen size | 6.38" inches | 4" inches |
| Screen-to-body ratio | feature not registered | ~57.4% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels | 320x480 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 404 PPI | 144 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| System version | Android 9.0 Pie | Android 2.3.6 Gingerbread |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Chipset | 64bit: MediaTek MT6768 (12nm) | 32bit: MediaTek MT6573 |
| CPU | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.7GHz ARM Cortex-A55 (Hexa-core) | Single-core, 1 processor: 1x 800MHz ARM11 (Single-core) |
| GPU graphical controller | feature not registered | PowerVR SGX531 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| RAM memory | 4GB LPDDR4X | 256MB |
| Internal storage | 128GB (108GB available) eMMC 5.1 | 512MB (150MB available) |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 300/50 Mbps | 7.2 Mbps |
| Network technology | 2G, 3G, 4G | 2G |
| 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | Not supported |
| Primary 4G network | LTE Cat7 (Bands 1, 3, 5, 8) TD-LTE (Bands 34, 38, 39, 40, 41) VoLTE | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA |
| 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 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Back camera (main camera) | (triple camera) 16 megapixels 8MP ultrawide f/2.213mm 5MP depth f/2.4 | 3.1 megapixels |
| Main camera resolution | 4608x3456 pixels | 2048x1536 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | VGA (720x480) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | feature not registered |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | HDR photo on both cameras | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Front camera (secondary) | 32 megapixels | 0.3 megapixels |
| Front camera resolution | 6528x4896 pixels | 640x480 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| 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 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, AAC+ |
🔌 Connectivity | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4500 mAh | 1500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 10 hours |
| Standby | feature not registered | 366.7 hours (15.3 days) |
➕ Other features | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| Call control | Voice dialing, Voice recorder | 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Skyline Blue, Cosmic Green • 19.5:9 display ratio • Always On Display • FunTouch OS 9 | • Colors: Black, White • HAC (M3/T3) • WiFi hotspot Java framework |
☢️ Radiation rate | ||
| Vivo S1 (V1907) | Alcatel OT-991D (Dual-sim) | |
| 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 |