| ratings | | | | |
| Overall NDTV Rating | Read Review | Read Review | - | - |
| Design Rating | | | - | - |
| Display Rating | | | - | - |
| Software Rating | | | - | - |
| Performance Rating | | | - | - |
| Battery Life Rating | | | - | - |
| Camera Rating | | | - | - |
| Value for Money Rating | | | - | - |
| key specs | | | | |
| Display | 6.30-inch | 6.21-inch | 5.84-inch | - |
| Processor | 2.1GHz octa-core | 2.2GHz octa-core | 2GHz octa-core | - |
| Front Camera | 25-megapixel | 24-megapixel | 5-megapixel | - |
| Resolution | 1080x2340 pixels | 1080x2340 pixels | 1080x2280 pixels | - |
| RAM | 4GB | 4GB | 3GB | - |
| OS | Android 8.1 Oreo | Android 9.0 Pie | Android 8.1 Oreo | - |
| Storage | 64GB | 64GB | 32GB | - |
| Rear Camera | 13-megapixel + 2-megapixel | 13-megapixel + 2-megapixel | 12-megapixel + 5-megapixel | - |
| Battery Capacity | 3500mAh | 3400mAh | 4000mAh | - |
| general | | | | |
| Release date | November 2018 | November 2018 | July 2018 | - |
| Launched in India | Yes | No | - | - |
| Form factor | Touchscreen | Touchscreen | Touchscreen | - |
| Dimensions (mm) | 157.00 x 74.00 x 8.00 | 154.80 x 73.64 x 7.95 | 149.33 x 71.68 x 8.75 | - |
| Weight (g) | 168.00 | 162.00 | 178.00 | - |
| Battery capacity (mAh) | 3500 | 3400 | 4000 | - |
| Removable battery | No | No | No | - |
| Wireless charging | No | No | - | - |
| Colours | Ambitious Black, Brave Blue, and Fiery Gold | Sapphire Blue, Sky Blue, Midnight Black | Black, Blue, Gold | - |
| SAR value | 1.31 | 0.74 | - | - |
| display | | | | |
| Screen size (inches) | 6.30 | 6.21 | 5.84 | - |
| Touchscreen | Yes | - | Yes | - |
| Resolution | 1080x2340 pixels | 1080x2340 pixels | 1080x2280 pixels | - |
| Protection type | Gorilla Glass | - | - | - |
| Aspect ratio | 19.5:9 | 19.5:9 | 19:9 | - |
| Pixels per inch (PPI) | 409 | 415 | 431 | - |
| hardware | | | | |
| Processor | 2.1GHz octa-core | 2.2GHz octa-core | 2GHz octa-core | - |
| Processor make | MediaTek Helio P70 | HiSilicon Kirin 710 | Qualcomm Snapdragon 625 | - |
| RAM | 4GB | 4GB | 3GB | - |
| Internal storage | 64GB | 64GB | 32GB | - |
| Expandable storage | Yes | Yes | Yes | - |
| Expandable storage type | microSD | microSD | microSD | - |
| Expandable storage up to (GB) | 256 | 256 | 256 | - |
| Dedicated microSD slot | Yes | - | - | - |
| camera | | | | |
| Rear camera | 13-megapixel (f/2.2) + 2-megapixel (f/2.4) | 13-megapixel (f/1.8) + 2-megapixel | 12-megapixel (f/2.2, 1.25-micron) + 5-megapixel (f/2.2, 1.12-micron) | - |
| Rear flash | LED | - | LED | - |
| Front camera | 25-megapixel (f/2.0) | 24-megapixel (f/2.0) | 5-megapixel (f/2.0) | - |
| Rear autofocus | - | - | Phase detection autofocus | - |
| software | | | | |
| Operating system | Android 8.1 Oreo | Android 9.0 Pie | Android 8.1 Oreo | - |
| Skin | ColorOS 5.2 | EMUI 9.0.1 | - | - |
| connectivity | | | | |
| Wi-Fi | Yes | Yes | Yes | - |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 a/b/g/n/ac | 802.11 a/b/g/n | - |
| GPS | Yes | Yes | Yes | - |
| Bluetooth | Yes, v 4.20 | Yes, v 4.20 | Yes, v 4.20 | - |
| USB OTG | Yes | - | Yes | - |
| Micro-USB | Yes | - | - | - |
| Headphones | 3.5mm | - | 3.5mm | - |
| FM | Yes | - | - | - |
| Number of SIMs | 2 | 2 | 2 | - |
| Active 4G on both SIM cards | Yes | Yes | - | - |
| Infrared | - | - | Yes | - |
| sim 1 | | | | |
| SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | - |
| GSM/CDMA | GSM | GSM | GSM | - |
| 3G | Yes | Yes | Yes | - |
| 4G/ LTE | Yes | Yes | Yes | - |
| sim 2 | | | | |
| SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | - |
| GSM/CDMA | GSM | GSM | GSM | - |
| 3G | Yes | Yes | Yes | - |
| 4G/ LTE | Yes | Yes | Yes | - |
| sensors | | | | |
| Face unlock | Yes | - | - | - |
| Fingerprint sensor | Yes | - | - | - |
| Compass/ Magnetometer | Yes | - | Yes | - |
| Proximity sensor | Yes | Yes | Yes | - |
| Accelerometer | Yes | Yes | Yes | - |
| Ambient light sensor | Yes | Yes | Yes | - |
| Gyroscope | Yes | Yes | Yes | - |
Realme U1 Price in India Cut, Becomes Available via Offline Stores
You and Realme Days Sale Today: Realme 2 Pro, Realme C1 Discounts, Freebies, and More
Realme U1 Starts Receiving Software Update With January Security Patch, Camera Improvements
Realme 2 Pro, Realme C1, Realme U1 to Get Discounts in Realpublic Sale, Starts January 20
Realme U1, Realme 2, Realme C1, Realme 2 Pro, Realme 1 January Update Schedule Announced
Realme Yo Days Sale Begins: Realme U1 Fiery Gold, Realme Buds Go on Sale for First Time in India Today
Realme Crosses 4 Million Users Milestone, Realme U1 Fiery Gold, Realme Buds First Sale Date Revealed
Realme U1 3GB RAM Variant Now Available in Open Sale on Amazon India
Realme U1 3GB RAM Variant to Be Available in Open Sale via Amazon India From December 17