Xiaomi revealed the company’s latest budget model, the Redmi 4, just a few days ago. The model will replace the Redmi 3, becoming the next entry-level device for users who want an excellent phone for a very affordable price. The strongest model from the lineup is the Redmi 4 Prime, coming with Snapdragon 625 and a 5-inch 1080p screen. Let’s see how it compares with the Redmi 3S Prime, the most potent model from the Redmi 3 series.

Redmi 4/4 Prime

Design, Dimensions

The new Redmi 4 Prime looks much better than the Redmi 3S Prime. The phone sports a metal body, characterized by one antenna band on the lower backside of the device, along with the camera and a fingerprint sensor placed on the upper middle part of the backside, one above the other. While the Redmi 3S Prime looks a bit average, the Redmi 4 Prime has a similar design, but with better looks.

The Redmi 4 Prime measures 141.3 x 69.6 x 8.9 mm, sporting almost identical dimensions as the Redmi 3S prime (139.3 x 69.6 x 8.5 mm). The dimensions are quite compact; most users should use both models with one hand without problems.

Hardware, Display

Hardware-wise, the Redmi 4 Prime comes with a Snapdragon 625 (Octa-core 2.0 GHz Cortex-A53 along with Adreno 506 GPU), making it much more potent than the Redmi 3S Prime, powered by Snapdragon 430 (Octa-core 1.4 GHz Cortex-A53 coupled with Adreno 505 GPU). For instance, the Snapdragon 625 can score around 60,000 points in AnTuTu, while the Snapdragon 430 can go up to 42,000 points.

The Redmi 4 Prime has 3 gigs of RAM along with 32 GB of expandable internal storage. Aside from Snapdragon 430, the Redmi 3S Prime packs 3 GB of RAM and 32 GB of expandable internal storage. Overall, both phones will perform rather snappy, with the Redmi 4 Prime being faster in everyday tasks, as well as a better choice for gaming.

The Redmi 4 prime brought a 1080p resolution to the Redmi family. It has a 5-inch, 1080p IPS display, offering high sharpness (443 ppi pixel density), natural colors and wide viewing angles. On the other side, the Redmi 3S Prime is equipped with a 5-inch 720p IPS display that has a visibly lower sharpness (294 ppi pixel density) but is still a solid choice for an entry-level smartphone.


Both models feature a 13 MP (f/2.2 on the Redmi 4 Prime; f/2.0 on the Redmi 3S Prime) main camera sensor, supporting phase detection autofocus and HDR. The Redmi 3S Prime comes with a LED flash, while the Redmi 4 Prime has a dual LED flash. The camera is capable of recording 1080p@30fps videos on both models. The selfie camera is also the same on both phones. It has 5 MP and can record 1080p videos.

Redmi 3S Prime

Battery, Software

The battery is of the same capacity (4100 mAh) on the both models, offering at least two days of usage. Also, both Redmi 4 Prime and the Redmi 3S Prime run under Android Marshmallow-based MIUI 8. The fingerprint sensor is featured on both devices.


The Redmi 4 Prime brings a Snapdragon 625, a 1080p display, and a better design, everything else is the same as on the Redmi 3S Prime. The Redmi 4 Prime costs around $132 (Rs 8,850), but is only available in China at the moment. The Redmi 3S Prime can be found for Rs 9,000 ($135), basically the same price as the Redmi 4 Prime. If you want to buy a solid smartphone for under $150, and can wait a bit until Redmi 4 Prime becomes internationally available, pick it up. 1080p screen and Snapdragon 625 are two huge reasons to wait a bit for the new model since it costs the same as the Redmi 3S Prime that comes with a 720p display and a Snapdragon 430.


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