Oppo K13 Turbo vs HTC Desire 820 comparison
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| key specs |
| Display | 6.80-inch | 5.50-inch |
| Front Camera | 16-megapixel | 8-megapixel |
| Rear Camera | 50-megapixel + 2-megapixel | 13-megapixel |
| RAM | 8GB | 2GB |
| Storage | 128GB, 256GB | 16GB |
| Battery Capacity | 7000mAh | 2600mAh |
| OS | Android 15 | Android 4.4.4 |
| Resolution | 1280x2800 pixels | 720x1280 pixels |
| Processor | - | Qualcomm Snapdragon 615 |
| general |
| Brand | Oppo | HTC |
| Model | K13 Turbo | Desire 820 |
| Release date | July 21, 2025 | September 1, 2014 |
| Launched in India | Yes | - |
| Form factor | Touchscreen | Touchscreen |
| Dimensions (mm) | 162.78 x 77.22 x 8.31 | 157.70 x 78.74 x 7.74 |
| Weight (g) | 207.00 | 155.00 |
| Battery capacity (mAh) | 7000 | 2600 |
| Removable battery | No | No |
| Fast charging | 80W Fast Charging | - |
| Wireless charging | No | - |
| Colours | First Purple, Knight White, Midnight Maverick | Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tangerine White, Saffron Grey, Flamingo Grey, Blue Misty, Monarch Orange |
| SAR value | - | 0.14 |
| display |
| Refresh Rate | 120 Hz | - |
| Resolution Standard | 1.5K | - |
| Screen size (inches) | 6.80 | 5.50 |
| Touchscreen | Yes | Yes |
| Resolution | 1280x2800 pixels | 720x1280 pixels |
| Pixels per inch (PPI) | 453 | 267 |
| hardware |
| Processor make | MediaTek Dimensity 8450 | Qualcomm Snapdragon 615 |
| RAM | 8GB | 2GB |
| Internal storage | 128GB, 256GB | 16GB |
| Processor | - | 1GHz octa-core |
| Expandable storage | - | Yes |
| Expandable storage type | - | microSD |
| Expandable storage up to (GB) | - | 128 |
| camera |
| Rear camera | 50-megapixel (f/1.8) + 2-megapixel (f/2.4) | 13-megapixel |
| No. of Rear Cameras | 2 | - |
| Rear flash | Yes | LED |
| Front camera | 16-megapixel (f/2.4) | 8-megapixel |
| No. of Front Cameras | 1 | - |
| software |
| Operating system | Android 15 | Android 4.4.4 |
| Skin | ColorOS 15 | Sense 6.0 |
| connectivity |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Bluetooth | Yes, v 5.40 | Yes, v 4.00 |
| NFC | Yes | No |
| USB Type-C | Yes | - |
| Headphones | Type-C | 3.5mm |
| Number of SIMs | 2 | 2 |
| Active 4G on both SIM cards | Yes | - |
| Wi-Fi standards supported | - | 802.11 a/b/g/n |
| Infrared | - | No |
| USB OTG | - | No |
| FM | - | Yes |
| Wi-Fi Direct | - | No |
| Mobile High-Definition Link (MHL) | - | No |
| sim 1 |
| SIM Type | Nano-SIM | Nano-SIM |
| GSM/CDMA | - | GSM |
| 3G | - | Yes |
| 4G/ LTE | - | Yes |
| sim 2 |
| SIM Type | Nano-SIM | Nano-SIM |
| GSM/CDMA | - | GSM |
| 3G | - | Yes |
| 4G/ LTE | - | Yes |
| sensors |
| In-Display Fingerprint Sensor | Yes | - |
| Compass/ Magnetometer | Yes | Yes |
| Proximity sensor | Yes | Yes |
| Accelerometer | Yes | Yes |
| Ambient light sensor | Yes | Yes |
| Gyroscope | Yes | No |
| Barometer | - | No |
| Temperature sensor | - | No |
| ratings |
| Overall NDTV Rating | - | Read Review |
| Design Rating | - | |
| Display Rating | - | |
| Software Rating | - | |
| Performance Rating | - | |
| Battery Life Rating | - | |
| Camera Rating | - | |
| Value for Money Rating | - | |