The Realme C100i is a budget-focused 4G smartphone built around long battery life, a large 120Hz display and everyday durability. It features a 6.75-inch HD+ LCD display with up to a 120Hz adaptive refresh rate, 900 nits peak brightness and DC dimming, making scrolling and general content consumption smoother. Under the hood, it uses the Unisoc T7250 chipset paired with 4GB RAM and 64GB UFS 2.2 storage, with microSD expansion available. Realme also supports up to 8GB of Dynamic RAM expansion.
Battery life is one of the phone’s main highlights, with a 6,500mAh battery and 15W wired charging. Realme also includes reverse charging, allowing the phone to act as a basic power source for compatible devices. For durability, the C100i carries an IP64 rating for dust and water resistance and has passed MIL-STD-810H military-grade shock-resistance testing.
For photography, the phone has an 8MP rear camera with autofocus and a 5MP front camera. The camera setup is aimed at basic photography, video calls and everyday snapshots rather than advanced mobile photography. Other useful features include a 3.5mm headphone jack, USB Type-C, dual SIM support and Android 16 with realme UI. The phone launched in India at ₹14,999 for the 4GB + 64GB variant.
The Realme C100i is designed primarily for users who value battery endurance, a smooth high-refresh-rate screen and durability over high-end performance or photography. Its 6,500mAh battery is particularly well suited to users who spend long periods away from a charger, while the 120Hz display makes everyday scrolling and navigation feel fluid. The IP64 rating and shock-resistance testing also give the phone useful protection for everyday use.
However, the hardware reflects its budget positioning. The Unisoc T7250 and 4GB RAM should handle calls, messaging, social media, streaming and other basic tasks, but demanding games and heavy multitasking are not its strongest areas. The HD+ resolution on such a large 6.75-inch screen also means it is not as sharp as Full HD+ displays found on some competing smartphones.
The biggest compromise is the camera system. An 8MP rear camera and 5MP selfie camera are adequate for casual photography but offer considerably less flexibility than phones equipped with higher-resolution main sensors. Charging is another limitation, with the large battery supported by only 15W wired charging.
Overall, the Realme C100i is positioned as a battery-first, durability-focused budget smartphone. It makes the most sense for users who prioritise long battery life and smooth everyday operation rather than gaming performance, display sharpness or camera quality.
