On this page we compare specs Vivo T1x 256GB 8GB RAM MediaTek Dimensity 900 MT6877 with vivo Y91 Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53), we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
| Hardware and OS | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Operating system | Android v11 | Android 8.1 (Oreo); Funtouch 4.5 |
| Processor | MediaTek Dimensity 900 MT6877 | Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53) |
| Chipset | | Qualcomm SDM439 Snapdragon 439 (12 nm) |
| RAM | 8 GB | |
| GPU | | Adreno 505 |
| Internal Storage | 256 GB | |
| Internal memory | | 32 GB, 3 GB RAM16 GB, 2 GB RAM |
| Custom UI | Origin OS | |
| External memory | | microSD, up to 256 GB |
| Display | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Type | IPS LCD | IPS LCD |
| Size | 6.58 inches | 6.22" inc |
| Resolution | 2408 x 1080 Pixels | 720 x 1520 px |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | capacitive touchscreen |
| Screen-to-Body Ratio | | 82.9% |
| Aspect ratio | 20:9 | |
| Display area | | 96.6 cm2 |
| Refresh rate | 120 Hz | |
| Display aspect ratio | | 19:9 (height:width) |
| Screen to body ratio calculated | 84.65 % | |
| Pixel Density | 401 ppi | 270 PPI |
| Colors | | 16M |
| Connectivity | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Network support | 5G , 4G , 3G, 2G | |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| 4G Network | | LTE band 1(2100), 3(1800), 5(850), 40(2300), 41(2500) |
| Dual SIM | Dual SIM, GSM GSM | |
| Wi-Fi | Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| SIM size | SIM1: Nano, SIM2: Nano | |
| Network | | GSM / HSPA / LTE |
| USB TYPE-C | Yes | |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| USB connectivity | Mass storage device, USB charging | |
| Bluetooth | Yes, v5.2 | 4.2, A2DP, LE |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | Yes, with A-GPS, Glonass | Yes, with A-GPS, GLONASS, BDS |
| Speed | | HSPA 42.2/5.76 Mbps, LTE Cat5 150/75 Mbps |
| USB | | microUSB 2.0, USB On-The-Go |
| Camera | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Image | 9000 x 7000 Pixels | |
| Front camera | 8 MP | |
| Front camera resolution | 8 MP f/2, Wide Angle Primary Camera | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Main camera | 64 MP 2 MP | 13 MP, Dual |
| Autofocus | Yes | |
| Specs | | 13 MP, f/2.2, PDAF
-2 MP, f/2.4, depth sensor |
| Video recording | 1920x1080 @ 30 fps | |
| Features | | LED flash, panorama |
| Video | | 1080p@30fps |
| Selfie camera | | 8 MP, Single |
| Multimedia | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Audio jack | 3.5 MM | |
| Loudspeaker | Yes | |
| 3.5 mm Jack | | Yes |
| Radio | | FM radio |
| Design | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Height | 164 mm | |
| Width | 75.3 mm | |
| Thickness | 8.5 mm | |
| Colors | | Starry Black, Ocean Blue, Red (Y91i only) |
| Colours | Black, Silver, Aurora | |
| Dimensions | | 155.1 x 75.1 x 8.3 mm |
| Build material back | Back: Plastic | |
| Weight | 189 grams | 163.5 g |
| Battery | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Capacity | 5000 mAh | |
| Battery capacity | | 4030 mAh, Non-removable Li-Po |
| Type | Li-Polymer | |
| Quick charging | Yes, Fast, 44W: 70 % in 38 minutes | |
| Other | Vivo T1x 256GB 8GB RAM | vivo Y91 |
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| Release date | | 2018, November |
| Sensors | | Fingerprint (rear-mounted), accelerometer, proximity, compass |
| Fingerprint sensor | Yes | |
| Fingerprint sensor position | Side | |
| Other sensors | Gravity Sensor, Light Sensor, Proximity Sensor, Gyro, Electronic Compass | |
