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General
| Name | Vivo Y91 | Coolpad Roar |
|---|---|---|
| Launch Date | 1 Nov 2018 | 1 Nov 2015 |
| Brand | Vivo | Coolpad |
Display
| Display Size | 6.22 Inches | 4.5 Inches |
|---|---|---|
| Display Type | LCD | LCD |
| Resolution | 720 x 1520 pixels | 480 x 854 pixels |
| Refresh Rate | 60Hz | 60Hz |
| Aspect Ratio | 19:9 | 16:9 |
Platform
| Operating System | Android 8.1 (Oreo), Funtouch 4.5 | Android 5.1 (Lollipop) |
|---|---|---|
| Processor | Snapdragon 439 (12 nm) | MediaTek MT6580 (28 nm) |
Memory
| Ram | 2GB, 3GB | 1GB |
|---|---|---|
| Storage | 16GB, 32GB | 8GB |
| Storage Type | eMMC 5.1 | - |
| SD Card Slot | Yes | Yes |
Camera
| Type | Dual Camera | Single Camera |
|---|---|---|
| Main | 13 MP, f/2.2 | 5 MP, AF |
| Depth | 2 MP, f/2.4 | - |
| Video | 1080p@30fps | - |
Front Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Selfie | 8 MP, f/1.8 | 2 MP |
| Video | 1080p@30fps | - |
Battery
| Capacity | 4030 mAh | 1800 mAh |
|---|---|---|
| Battery Technology | Li-Po | Li-Ion |
| Charging Speed | 10W | - |
| USB Type | Micro USB | Micro USB |
| Wireless Charging | No | No |
Network
| Sim | Dual Sim | Single Sim |
|---|---|---|
| Sim Type | ||
| Technology | 4G | 3G |
Connectivity
| Wi-Fi | WiFi 2.4 | WiFi 2.4 |
|---|---|---|
| Bluetooth | V4.2 | V4.0 |
| NFC | No | No |
| GPS | Yes | Yes |
Audio
| Loudspeaker | Yes | Yes |
|---|---|---|
| Headphone Jack | Yes | Yes |
Biometric
| Fingerprint | Yes | No |
|---|---|---|
| Fingerprint Type | Capacitive Fingerprint Scanner | - |
| Fingerprint Position | Rear-Mounted | - |
| Face Unlock | 2D Face Unlock | Not Available |
Body
| Dimensions | 155.1 x 75.1 x 8.3 mm | 133 x 65.4 x 9 mm |
|---|---|---|
| Weight | 163.5 g | - |
| Frame | Plastic Frame | - |
| Back | Plastic Back | - |
| IP Rating | No | No |
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