vivo S9 vs Xiaomi Redmi A2
General Info
| Manufacturer | |
| vivo | Xiaomi |
| Announced | |
| March 2021 | March 2023 |
| Status | |
| Coming Soon - March 2021 | Available - March 2023 |
| Colors | |
| Black, White, Gradient Blue | Light Green, Light Blue, Black |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
|
158.4 x 73.9 x 7.4 mm (6.24 x 2.91 x 0.29 in) |
164.9 x 76.8 x 9.1 mm (6.49 x 3.02 x 0.36 in) |
| Weight | |
| 173 g (6.1 oz) | 192 g (6.77 oz) |
| SIM Type | |
| Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | |
| GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA2000 1x |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | |
| HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | |
| 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41 | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International |
| 5G Network | |
| 1, 3, 28, 41, 77, 78 SA/NSA | - |
| Messaging | |
| Build Features | |
| - Fingerprint Sensor (under display, optical) |
- |
Display
Hardware and OS
| OS | |
| Android 11 | Android 12 (Go edition) |
| User Interface | |
| OriginOS 1.0 | MIUI 13 |
| Processor | |
| Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55), MediaTek Dimensity 1100 5G (6 nm) [Similar] | Octa-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53), Mediatek Helio G36 (12 nm) [Similar] |
| GPU | |
| Mali-G77 MC9 [Similar] | PowerVR GE8320 [Similar] |
| RAM | |
| 12 GB [Browse Similar] | 3 GB [Browse Similar] |
| Internal Memory | |
| 256 GB | 32 GB |
| External Memory | |
| No | microSDXC (dedicated slot) |
Camera
| Rear Camera | |
| 64 MP + 8 MP + 2 MP [Similar] | 8 MP + 0.08 MP [Similar] |
| Flash | |
| Dual-LED Dual-tone Flash | Dual-LED Flash |
| Features | |
| 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF, OIS 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth) HDR, Panorama |
8 MP, f/2.0, (wide) 0.08 MP (depth) HDR |
| Video | |
| 4K@30fps, 1080p@30fps, gyro-EIS | 1080p@30fps |
| Front Camera | |
|
44 MP, f/2.0, (wide), AF 8 MP, f/2.3, 105Ë (ultrawide), HDR, 4K@30fps, 1080p@30fps [Similar] |
5 MP, f/2.2 1080p@30fps [Similar] |
Multimedia
| 3.5mm Jack | |
| Radio | |
| No | FM radio |
| Games | |
| Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
Connectivity and Data Rate
| GPRS | |
| Yes | Yes |
| Edge | |
| Yes | Yes |
| 3G | |
| HSPA 42.2/5.76 Mbps, LTE-A, 5G | HSPA, LTE |
| Bluetooth | |
| 5.2, A2DP, LE, aptX HD | 5.0, A2DP, LE |
| Wi-Fi | |
| Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n |
| USB | |
| USB Type-C, USB On-The-Go | microUSB 2.0 |
| GPS | |
| Yes, with A-GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, GALILEO, BDS |
| Browser | |
| Yes | Yes |
User Memory
| Internal | |
| 256 GB, 12 GB RAM or 128 GB, 8 GB RAM UFS 3.1 | 32 GB, 3 GB RAM or 32 GB, 2 GB RAM |
| Expandable Storage | |
| No | microSDXC (dedicated slot) |
| USB OTG | |
| Supported | Not Supported |
Sensors
| Fingerprint | |
| Proximity Sensor | |
| Accelerometer Sensor | |
| Magnetic-field Sensor (Compass) | |
| Gyroscope Sensor | |
| NFC | |
Battery
| Type | |
| Non-removable Li-Po Battery Fast battery charging 33W, 66% in 30 min (advertised) |
Non-removable Li-Po Battery Battery charging 10W |
| Capacity | |
| 4000 mAh | 5000 mAh |
| Stand by | |
| - | - |
| Talk Time | |
| - | - |