Nothing Phone 3a Lite vs Karbonn Alfa 18 comparison
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| key specs |
| Display | 6.77-inch | 4.00-inch |
| Processor | MediaTek Dimensity 7300 Pro | 1.2GHz quad-core |
| Front Camera | 16-megapixel | 0.3-megapixel |
| Rear Camera | 50-megapixel + 8-megapixel | 2-megapixel |
| RAM | 8GB | 512MB |
| Storage | 128GB, 256GB | 4GB |
| Battery Capacity | 5,000mAh | 1400mAh |
| OS | Android 15 | Android 7.0 |
| Resolution | 1,080x2,392 pixels | 480x800 pixels |
| general |
| Brand | Nothing | Karbonn |
| Model | Phone 3a Lite | Alfa 18 |
| Release date | October 29, 2025 | - |
| Launched in India | No | - |
| Form factor | Touchscreen | Touchscreen |
| Dimensions (mm) | 164.00 x 78.00 x 8.30 | 124.50 x 64.50 x 10.60 |
| Weight (g) | 199.00 | 112.00 |
| IP rating | IP54 | - |
| Battery capacity (mAh) | 5,000 | 1400 |
| Removable battery | No | No |
| Fast charging | 33W Fast Charging | - |
| Wireless charging | No | - |
| Colours | White, Black | Champagne, Grey - Gun Metal, Black - Champagne |
| display |
| Refresh Rate | 120 Hz | - |
| Resolution Standard | FHD+ | - |
| Screen size (inches) | 6.77 | 4.00 |
| Touchscreen | Yes | Yes |
| Resolution | 1,080x2,392 pixels | 480x800 pixels |
| Protection type | Other | - |
| Pixels per inch (PPI) | 387 | - |
| hardware |
| Processor | octa-core | 1.2GHz quad-core |
| Processor make | MediaTek Dimensity 7300 Pro | - |
| RAM | 8GB | 512MB |
| Internal storage | 128GB, 256GB | 4GB |
| Expandable storage | Yes | Yes |
| Expandable storage type | microSD | microSD |
| Expandable storage up to (GB) | 2TB | 32 |
| camera |
| Rear camera | 50-megapixel (f/1.88) + 8-megapixel (f/2.2) | 2-megapixel |
| No. of Rear Cameras | 3 | - |
| Rear flash | Yes | Yes |
| Front camera | 16-megapixel (f/2.45) | 0.3-megapixel |
| No. of Front Cameras | 1 | - |
| Pop-Up Camera | No | - |
| Front flash | No | - |
| software |
| Operating system | Android 15 | Android 7.0 |
| Skin | Nothing OS 3.5 | - |
| connectivity |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Bluetooth | Yes, v 5.30 | Yes |
| Wi-Fi standards supported | - | 802.11 b/g/n |
| NFC | - | No |
| Infrared | - | No |
| USB OTG | - | Yes |
| Headphones | - | 3.5mm |
| FM | - | Yes |
| Number of SIMs | - | 2 |
| Wi-Fi Direct | - | No |
| Mobile High-Definition Link (MHL) | - | No |
| sensors |
| In-Display Fingerprint Sensor | Yes | - |
| Compass/ Magnetometer | Yes | No |
| Proximity sensor | Yes | Yes |
| Accelerometer | Yes | Yes |
| Ambient light sensor | Yes | No |
| Gyroscope | Yes | No |
| Barometer | - | No |
| Temperature sensor | - | No |
| sim 1 |
| SIM Type | - | Micro-SIM |
| GSM/CDMA | - | GSM |
| 3G | - | Yes |
| 4G/ LTE | - | Yes |
| sim 2 |
| SIM Type | - | Micro-SIM |
| GSM/CDMA | - | GSM |
| 3G | - | Yes |
| 4G/ LTE | - | Yes |