| Vivo Y66i |
Xiaomi Redmi Note 9 Pro |
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| Hardware and OS | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| Operating system | Android 7.1 Nougat OS | Android 10.0; MIUI 11 |
| Processor | Quad-Core 1.4GHz ARM Cortex A53 CPU Clock | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) |
| Chipset | Qualcomm SM7125 Snapdragon 720G (8 nm) | |
| GPU | Qualcomm Adreno 308, 500MHz | Adreno 618 |
| RAM | 3GB | |
| Internal memory | 64GB 4GB RAM, 128GB 6GB RAM | |
| Internal Storage | 32GB | |
| External memory | microSDXC (dedicated slot) | |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes with Funtouch OS 3.2 | |
| Display | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| Type | IPS, LCD capacitive touchscreen | IPS LCD |
| Size | 5.5 inches HD | 6.67" inc |
| Resolution | 1280 x 720 Pixels, 24 bit color depth | 1080 x 2400 px |
| Protection | Yes | Corning Gorilla Glass 5 |
| Touchscreen | Yes Multi Touch Support | capacitive touchscreen |
| Screen-to-Body Ratio | 84.5% | |
| Display area | 107.4 cm2 | |
| Display aspect ratio | 20:9 (height:width) | |
| Pixel Density | ~ 267 ppi | 395 PPI |
| Features | IPS, HD Display, ~ 267 PPI Pixel Density, Capacitive Multi-touch, Scratch Resistant, 2.5D Curved Glass Screen | |
| Colors | 16M Colors | 16M |
| Other | 450 nits typ. brightness (advertised) | |
| Connectivity | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| NFC | No | |
| 4G Network | LTE : 850/ 1800 / 2100 MHz, LTE-TDD : 1900 MHz (Band 39), LTE-TDD : 2300 MHz (Band 40), LTE-TDD : 2500 MHz (Band 41), LTE-TDD : 2600 MHz (Band 38) | LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500) |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi HotSpot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Network | GSM / HSPA / LTE | |
| SIM | Standard SIM | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Dual SIM | (Nano-SIM, Nano-SIM), Dual Standby | |
| Bluetooth | 5.0, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with GPS, A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS, NavIC |
| Speed | LTE Cat-4 150 Mbps Download, 50 Mbps Upload, HSUPA 5.76 Mbps Upload, HSDPA 21 Mbps Download, EV-DO Rev.A 1.8 Mbps Upload, 3.1 Mbps Download | HSPA 42.2/5.76 Mbps, LTE-A |
| USB | Micro USBv2.0 with Charging and Mass Storage Function | 2.0, Type-C 1.0 reversible connector |
| Camera | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| Image | 4160 x 3120 Pixels | |
| Main camera | 13 Megapixels with Single-LED and AF Rear Camera | 48 MP, Quad |
| Specs | 48 MP, f/1.8, (wide), 1/2.25", 0.8µm, PDAF -8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm -5 MP, f/2.4, (macro), 1.12µm -2 MP, f/2.4, (depth) | |
| Features | Yes with Single-LED Flash | LED flash, HDR, panorama |
| Video | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS | |
| Selfie camera | 5 Megapixel Front Camera | 16 MP, Single |
| Multimedia | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| Loudspeaker | Yes with Single Speaker | |
| Video Playback | Up to 7.5 Hours | |
| Video Out | Yes With Wireless Media Link | |
| Ring Tones | AAC, WAV ringtones | |
| 3.5 mm Jack | yes | Yes |
| Radio | Yes | FM radio, recording |
| Design | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| Colors | Aurora Blue, Glacier White, Interstellar Black | |
| Body build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame | |
| Dimensions | 6.04 in x 2.98 in x 0.29 in | 165.8 x 76.7 x 8.8 mm |
| Weight | 157 Grams (With Battery) | 209 g |
| Battery | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| Capacity | 3,000 mAh | |
| Placement | Non-Removable | |
| Battery capacity | 5020 mAh, Non-removable Li-Po | |
| Other | Vivo Y66i | Xiaomi Redmi Note 9 Pro |
| Release date | 2020, March 12 | |
| Sensors | Accelerometer, Proximity, Light, Gyroscope Sensor | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass , Infrared port |
