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- Xiaomi Redmi Note 4 vs Karbonn A21
Xiaomi Redmi Note 4 vs Karbonn A21 comparison
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| ratings | ||||
| Overall NDTV Rating | Read Review | - | ||
| Design Rating | - | |||
| Display Rating | - | |||
| Software Rating | - | |||
| Performance Rating | - | |||
| Battery Life Rating | - | |||
| Camera Rating | - | |||
| Value for Money Rating | - | |||
| key specs | ||||
| Display | 5.50-inch | 4.50-inch | ||
| Processor | Qualcomm Snapdragon 625 | Qualcomm Snapdragon S4 Play | ||
| Front Camera | 5-megapixel | 1.3-megapixel | ||
| Rear Camera | 13-megapixel | 5-megapixel | ||
| RAM | 4GB | 512MB | ||
| Storage | 64GB | 4GB | ||
| Battery Capacity | 4100mAh | 1800mAh | ||
| OS | Android 6.0 | Android 4 | ||
| Resolution | 1080x1920 pixels | 480x800 pixels | ||
| general | ||||
| Brand | Xiaomi | Karbonn | ||
| Model | Redmi Note 4 | A21 | ||
| Release date | August 1, 2016 | December 1, 2012 | ||
| Launched in India | Yes | - | ||
| Form factor | Touchscreen | Bar | ||
| Dimensions (mm) | 151.00 x 76.00 x 8.30 | - | ||
| Weight (g) | 175.00 | - | ||
| Battery capacity (mAh) | 4100 | 1800 | ||
| Removable battery | No | No | ||
| Colours | Gold, Grey, Matte Black | Pearl White | ||
| display | ||||
| Screen size (inches) | 5.50 | 4.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1080x1920 pixels | 480x800 pixels | ||
| Aspect ratio | 16:9 | - | ||
| Pixels per inch (PPI) | 401 | - | ||
| hardware | ||||
| Processor | 2GHz octa-core | 1.2GHz one-core | ||
| Processor make | Qualcomm Snapdragon 625 | Qualcomm Snapdragon S4 Play (MSM8225) | ||
| RAM | 4GB | 512MB | ||
| Internal storage | 64GB | 4GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 128 | 32 | ||
| camera | ||||
| Rear camera | 13-megapixel (f/2.0, 1.12-micron) | 5-megapixel | ||
| Rear autofocus | Phase detection autofocus | - | ||
| Rear flash | Dual LED | LED | ||
| Front camera | 5-megapixel (f/2.0) | 1.3-megapixel | ||
| software | ||||
| Operating system | Android 6.0 | Android 4 | ||
| Skin | MIUI 8 | - | ||
| connectivity | ||||
| Wi-Fi | Yes | No | ||
| Wi-Fi standards supported | 802.11 a/b/g/n | - | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes, v 4.10 | Yes | ||
| NFC | No | No | ||
| Infrared | Yes | No | ||
| USB OTG | Yes | No | ||
| Micro-USB | Yes | - | ||
| Headphones | 3.5mm | - | ||
| FM | Yes | No | ||
| Number of SIMs | 2 | 2 | ||
| Wi-Fi Direct | No | No | ||
| Mobile High-Definition Link (MHL) | No | No | ||
| sim 1 | ||||
| SIM Type | Micro-SIM | Regular | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | No | ||
| sim 2 | ||||
| SIM Type | Nano-SIM | Regular | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | No | ||
| sensors | ||||
| Fingerprint sensor | Yes | - | ||
| Compass/ Magnetometer | Yes | No | ||
| Proximity sensor | Yes | No | ||
| Accelerometer | Yes | No | ||
| Ambient light sensor | Yes | No | ||
| Gyroscope | Yes | No | ||
| Barometer | No | No | ||
| Temperature sensor | No | No | ||
-
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Redmi Note 4 MIUI 11 Global Stable ROM Update Rollout Begins in India, Security Patch Not Updated
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Xiaomi Redmi Note 4 Reportedly Receiving MIUI 9.5 OTA Update
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Xiaomi MIUI 9.5 Officially Announced and It’s Coming to These 30 Smartphones
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Xiaomi Said to Be Seeding MIUI 9.5 Nightly Build to Some Redmi Note 4 Users
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Xiaomi Redmi Note 4 Top Selling Smartphone in India in 2017: Counterpoint
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Xiaomi Redmi Note 4 64GB Variant Gets Another Rs. 1,000 Price Cut
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Xiaomi Redmi Note 4 Gets a Rs. 1,000 Permanent Price Cut in India, Now Starts at Rs. 9,999
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Xiaomi Redmi Note 4, Mi Max 2 MIUI 9 Global Stable ROM Now Rolling Out
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Xiaomi Redmi Note 4 Lake Blue Variant Launched in India at Rs. 12,999
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Xiaomi Redmi Note 4, Mi Max 2 Now Available With Rs. 300 Paytm Cashback on Mi.com, Mi Store App
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Xiaomi Redmi Note 4 May Have Exploded Due to 'Extreme External Force', Company Finds
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Xiaomi Redmi Note 4 Now Available in Open Sale in India via Flipkart, Mi.com
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Xiaomi Redmi Note 4 to Go on Sale in India Today via Mi.com, Flipkart
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Xiaomi Redmi Note 4 Claimed to Sell 5 Million Units Within Six Months in India
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