Phone Comparison - vivo Y91i vs Realme 3i vs Xiaomi Redmi 8A
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| Manufacturer | vivo | Realme | Xiaomi |
| Announced | March 2019 | Expected Announcement - July 2019 | August 2019 |
| Status | Available - March 2019 | Rumored - July 2019 | Rumored - Coming Soon 2019 |
| Price | Rs. 9,990 ($0.00) [Similarly Priced] | Rs. 7,999 ($0.00) [Similarly Priced] | Rs. 6,499 ($0.00) [Similarly Priced] |
| Colors | Fusion Black, Sunset Red, Ocean Blue | Diamond Blue, Diamond Red | Black, red, blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) |
156.1 x 75.6 x 8.3 mm (6.15 x 2.98 x 0.33 in) |
156.3 × 75.4 × 9.4 mm (6.15 × 2.97 × 0.37 in) |
| Weight | 163.5 g (5.75.0.18 oz) | 175 g (6.17 oz) | 188 g (6.63 oz) |
| SIM Type | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) with dedicated microSD card slot |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 40(2300), 41(2500) | LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) |
| Messaging | |||
| Build Features | - | - Fingerprint Sensor |
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| OS | Android 8.1 (Oreo) | Android 9.0 (Pie) | Android 9.0 (Pie) |
| User Interface | Funtouch 4.5 | ColorOS 6 | MIUI 10 |
| Processor | Octa-core 2.0 GHz Cortex-A53, Mediatek MT6762 Helio P22 (12 nm) | Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53), Mediatek MT6771 Helio P60 (12 nm) | Octa-core (2x2.0 GHz Cortex-A53 & 6x1.45 GHz Cortex A53), Qualcomm SDM439 Snapdragon 439 (12 nm) |
| GPU | PowerVR GE8320 | Mali-G72 MP3 | Adreno 505 |
| RAM | 2 GB | 4 GB | 3 GB |
| Internal Memory | 16/32 GB | 64 GB | 32 GB |
| External Memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) | microSD, up to 512 GB (dedicated slot) |
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| Type | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, Unspecified | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 6.22 inches | 6.22 inches | 6.22 inches |
| Resolution | 720 x 1520 pixels (270 ppi) | 720 x 1520 pixels (270 ppi) | 720 x 1520 pixels (270 ppi) |
| Screen-to-Body Ratio | 83.15% | 82.07% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP | 13 MP + 2 MP | 12 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | 13 MP, f/2.2, PDAF Panorama |
13 MP, f/1.8, 1/3", 1.12µm, PDAF 2 MP, depth sensor HDR |
12 MP, f/2.2, 1.25µm, PDAF HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30/60fps |
| Front Camera | 8 MP, f/1.8 [Similar] | 13 MP, f/2.0, 1/3", 1.12µm, HDR, 1080p@30fps [Similar] | 8 MP, HDR, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | |
| Edge | Yes | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | Yes |
| 3G | HSPA, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/50 Mbps | HSPA, LTE |
| Bluetooth | 5.0, A2DP, LE | 4.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| USB | microUSB 2.0, USB On-The-Go | microUSB 2.0, USB On-The-Go | microUSB 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | Yes | Yes | Yes |
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| Internal | 16/32 GB, 2 GB RAM | 64 GB, 4 GB RAM or 32 GB, 3 GB RAM | 32 GB, 3 GB RAM or 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) | microSD, up to 512 GB (dedicated slot) |
| USB OTG | Supported | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| Gyroscope Sensor | |
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| NFC | |
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| Type | Non-removable Li-Po Battery | Non-removable Li-Ion Battery | Non-removable Li-Po Battery Type-C Fast charger 18W |
| Capacity | 4030 mAh | 4230 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 9,990 
Rs. 7,999 
