The UMIDIGI G100A is a budget-friendly smartphone launched as a more affordable alternative to the standard UMIDIGI G100. It features a massive 6.9-inch 120Hz display, a dual rear camera setup with a 13MP main sensor and a 2MP depth sensor, and a substantial 6000mAh battery. The UMIDIGI G100A is powered by the UNISOC T615 octa-core processor, paired with 4GB of RAM, up to 256GB storage, and runs Android 14 for a smooth user experience.
Design
The UMIDIGI G100A boasts a sleek and modern design with dimensions of 171 x 77.6 x 8.1 mm and weighing 205g, it offers a comfortable grip and a premium feel.
Its construction is centered around a durable plastic chassis, which not only helps reduce the overall weight but also contributes to its resilience in daily use. The plastic back doesn’t feel cheap, instead, it features a refined feather-textured finish that catches the light subtly and offers a pleasant tactile grip, reducing the likelihood of accidental slips.
The device’s slim 8.1 mm profile and slightly curved edges allow it to sit comfortably in the hand, making one-handed use more manageable despite the large 6.9-inch display. At 205 grams, it feels sturdy without being heavy, offering a solid presence that suggests reliability.
On the rear, the phone houses a distinctive circular module at the center of the upper back, giving the phone a symmetrical and modern aesthetic that distinguishes it from other budget phones, which often opt for corner camera arrays. This centered layout contributes to a visual balance that is both pleasing and premium in appearance.
Furthermore, for enhanced usability, the G100A features a side-mounted fingerprint sensor integrated into the power button, with the volume button accompanying it. The phone is also IP53-rated, providing resistance to minor dust and water splashes, which adds an extra layer of practicality for users in varied environments.
The G100A is available in multiple finishes such as Rock Black, Lake Green, Interstellar Blue, and Starry White, thus catering to a range of personal styles.
Display
In addition, the front of the UMIDIGI G100A is dominated by a spacious 6.9-inch display, with a resolution of 720 x 1640 pixels and a pixel density of around 260 ppi. The screen delivers decent clarity for basic tasks like browsing, video playback, and social media.
The display has thin bezels, giving it a modern look, while a small waterdrop notch at the top houses the front camera with minimal distraction. At the top of the screen, a subtle waterdrop notch houses the front-facing camera, maintaining a clean and modern look while maximizing screen real estate.
The UMIDIGI G100A features a dynamic refresh rate that shifts between 60Hz and 120Hz, allowing the device to balance performance and power efficiency. When high refresh rates aren’t needed, such as while reading static content or browsing, the display automatically adjusts to 60Hz to conserve battery. During tasks that benefit from smoother visuals, like scrolling or gaming, it ramps up to 120Hz for a more fluid experience. Also, the panel produces natural colors and good viewing angles, though brightness may be limited in direct sunlight.
Furthermore, the UMIDIGI G100A’s 6.9-inch IPS LCD display offers a peak brightness of 450 nits, which is adequate for most indoor and shaded outdoor environments. While it may not perform optimally under direct sunlight, it remains readable with some adjustment
Camera
The UMIDIGI G100A is equipped with a dual-camera system designed to meet the needs of everyday photography. The primary 13MP wide-angle camera, coupled with a 2MP depth sensor, captures clear and detailed images in well-lit conditions. However, its performance diminishes in low-light environments, where noise becomes more apparent, and dynamic range is limited. The camera struggles with moving subjects and direct sunlight, often resulting in less sharp images.
For selfies, the 8MP front-facing camera delivers decent quality, suitable for social media and video calls. It performs adequately in various lighting conditions but lacks advanced features like HDR or portrait mode.
The UMIDIGI G100A camera also includes several modes aimed at enhancing the user experience. Pro Mode gives manual control over settings such as ISO, shutter speed, and white balance, enabling more experienced users to fine-tune their shots—ideal for challenging scenes like night skies or fast-moving subjects. Capture Mode offers a straightforward point-and-shoot experience, adjusting settings automatically to capture sharp images at various distances.
Portrait Mode enhances the background blur (bokeh) to bring more focus to the subject, making it useful for close-up portraits. Meanwhile, Night Mode helps refine low-light shots by boosting brightness and improving detail. While it doesn’t rival flagship night photography, it does a respectable job of making nighttime scenes more usable and visually appealing.
Hardware/Software
The UMIDIGI G100A delivers a well-rounded performance. Under the hood, the device is powered by the UNISOC T615 octa-core processor, which helps manage routine tasks like web browsing, video streaming, and light gaming with ease.
This octa-core processor consists of 2×1.8 GHz Cortex-A75 cores and 6×1.6 GHz Cortex-A55 cores, providing a good balance between performance and efficiency for a budget device. While it isn’t built for intensive applications or heavy multitasking, it remains responsive during general use, offering a smooth experience for its class. Paired with 4GB of RAM, the phone handles basic multitasking competently, though more demanding apps may show occasional slowdowns.
Furthermore, the G100A comes in two configurations: 128GB with 4GB RAM, and 256GB with 4GB RAM. This ensures sufficient space for apps, media, and documents, especially in the higher storage variant. The phone also supports microSDXC expansion, though it uses a shared SIM slot, meaning users will have to choose between dual SIM functionality and additional storage. This flexibility ensures that you won’t run out of storage space quickly.
Battery performance is one of the highlights of the G100A. With a large 6000mAh capacity, the phone comfortably lasts up to two days on a single charge under regular use. Whether it’s social media, calls, or streaming content, users can rely on this device to stay powered throughout the day without frequent recharging. It also comes with a 20W fast charging support that helps top up the battery at a reasonable speed, reducing overall downtime.
Meanwhile, the G100A runs on Android 14, which offers a clean, up-to-date user interface with minimal bloatware. The software experience is smooth and user-friendly, providing access to the latest Android features and improved privacy controls. While UMIDIGI’s long-term update policy may not match major brands, the current software experience feels modern and functional.
Adding to its durability, the UMIDIGI G100A comes with an IP53 rating, making it splash-proof and dust-resistant. This level of protection ensures the phone can withstand minor exposure to water and dust, offering peace of mind for users who are often on the go or in less controlled environments.
